WO2017125972A1 - Electrical stimulation device - Google Patents

Abstract

This electrical stimulation device (1) includes a control unit that controls electric current that is output from electrodes (20, 30), which are capable of applying electrical stimulation to a target site on a body that includes lateral abdominal muscles and either back muscles or gluteal muscles, on the basis of a detection result from a detection unit (40) that is capable of detecting movements of the body. When the lateral abdominal muscles contract due to the electrical stimulation, abdominal pressure increases due to the contracted muscles, and when either the back muscles or the gluteal muscles contract due to the electrical stimulation, the orientation of the lower back is maintained by the contracted muscles. More specifically, by applying the electrical stimulation to the target site on the body that includes the lateral abdominal muscles and either the back muscles or the gluteal muscles, rigidity of the lower back is increased, the position of lower back becomes stable and strain on the lower back is reduced.

Description

Electrical stimulator

The present invention relates to an electrical stimulation device that applies electrical stimulation to muscles.

An electrical stimulation device that applies electrical stimulation to muscles is used as electrotherapy to assist body training or body movement (see, for example, Patent Document 1). By applying electrical stimulation to antagonistic muscles by this electrical stimulation device, the body is trained, and by applying electrical stimulation to main muscles, movement of the body is assisted.

JP 2000-279536 A

¡It is desirable to reduce the burden on the waist when training the body using an electrical stimulator or assisting the body's movements. The electrical stimulation device described in Patent Document 1 does not particularly take into consideration the burden on the waist.

The present invention provides an electrical stimulation device that can reduce the burden on the waist.

One form of the electrical stimulation device according to the present invention can detect the movement of the body with the current output from the electrode capable of applying electrical stimulation to the target region of the body including the flank muscle and at least one of the back muscle and the gluteal muscle The control part which controls based on the detection result of a simple detection part is provided.

上 記 According to the electrical stimulation device, the burden on the waist is reduced.

FIG. 1 is a schematic diagram of the electrical stimulation device according to the first embodiment. FIG. 2 is a schematic diagram illustrating an example of a position where the front electrode of the electrical stimulation apparatus according to the first embodiment is attached. FIG. 3 is a schematic diagram illustrating an example of the position of the back electrode of the electrical stimulation device according to the first embodiment. FIG. 4 is a block diagram of the electrical stimulation device according to the first embodiment. FIG. 5 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the first embodiment in the first walking operation mode. FIG. 6 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the first embodiment in the second walking operation mode. FIG. 7 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the first embodiment in the third walking operation mode. FIG. 8 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the first embodiment in the first torsional operation mode. FIG. 9 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the first embodiment in the second torsional operation mode. FIG. 10 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the first embodiment in the third torsional operation mode. FIG. 11 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the first embodiment in the first bending operation mode. FIG. 12 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the first embodiment in the second bending operation mode. FIG. 13 is a diagram illustrating an example of evaluation results of various electrical stimulation patterns by the electrical stimulation apparatus according to the first embodiment. FIG. 14 is a perspective view illustrating an example of a usage state of the electrical stimulation device according to the second embodiment. FIG. 15 is a block diagram of an electrical stimulation device according to the third embodiment. FIG. 16 is a time chart illustrating an example of a usage state of the electrical stimulation device according to the third embodiment in the breathing operation mode. FIG. 17 is a schematic diagram illustrating a position where the front electrode of the electrical stimulation device according to the first modification is applied. FIG. 18 is a schematic diagram illustrating a position where the front electrode of the electrical stimulation device according to the second modification is applied. FIG. 19 is a schematic diagram illustrating a position where the front electrode of the electrical stimulation apparatus according to the third modification is applied. FIG. 20 is a schematic diagram showing the position of the back electrode of the electrical stimulation device according to the first modification. FIG. 21 is a schematic diagram illustrating a position where the back electrode of the electrical stimulation apparatus according to the second modification is applied. FIG. 22 is a schematic diagram showing a position where the back electrode of the electrical stimulation device according to the third modification is applied. FIG. 23 is a schematic diagram illustrating a pasting position of the back electrode of the electrical stimulation device according to the fourth modified example. FIG. 24 is a schematic diagram illustrating a position where the back electrode of the electrical stimulation device according to the fifth modification is applied. FIG. 25 is a schematic diagram showing the position of the back electrode of the electrical stimulation device according to the sixth modification. FIG. 26 is a schematic diagram illustrating a position where the back electrode of the electrical stimulation apparatus according to the seventh modification is applied. FIG. 27 is a time chart illustrating an example of a usage state of the electrical stimulation device in the modification example in the fourth walking operation mode. FIG. 28 is a time chart illustrating an example of a usage state of the electrical stimulation device in the modified example in the fifth walking operation mode.

(First embodiment)
FIG. 1 shows an example of an electrical stimulation device 1 that can be attached to a target region of the body. The electrical stimulation apparatus 1 includes a belt 10, a front electrode 20, a back electrode 30, a detection unit 40, a controller 50, a control unit 60 (see FIG. 4), and a cord 90. The belt 10 has a structure that can be worn on the body, and is made of, for example, a stretchable material. The front electrode 20 and the back electrode 30 are provided on the inner surface of the belt 10. For this reason, by attaching the belt 10 to the body, the front electrode 20 and the back electrode 30 are attached to the target site. An example of the target site is the flank and back muscles. FIG. 1 shows the inner surface of the belt 10, that is, the surface facing the body.

The belt 10 includes a first portion 11, a second portion 12, a third portion 13, and a position adjusting unit 14. The function of the first part 11 is to support the back of the body. The function of the second part 12 is to support the front of the right half. The function of the third portion 13 is to support the front of the left half. The first portion 11 is continuous with the second portion 12 and the third portion 13. For example, surface fasteners (not shown) that can be bonded to each other are provided at the end of the second portion 12 along the longitudinal direction of the belt 10 and the end of the third portion 13 along the longitudinal direction of the belt 10. .

The function of the position adjusting unit 14 is to adjust the position where the belt 10 is attached to the body. An example of the material of the position adjustment unit 14 is a sponge. An example of the shape of the position adjustment unit 14 is a triangular prism including a vertex 14A. The position adjusting unit 14 is provided, for example, on the inner surface of the first portion 11 and extends along the longitudinal center line of the belt 10. Specifically, the position adjusting unit 14 is sewn to the inner surface of the first portion 11 so that the apex 14A faces the outside. The position adjustment unit 14 adjusts the mounting position of the belt 10 on the body, the belt 10 is wound around the body, and the end of the second portion 12 and the end of the third portion 13 are bonded together. Thus, the belt 10 is attached to the body.

The front electrode 20 includes a first front electrode 21, a second front electrode 22, a third front electrode 23, and a fourth front electrode 24. The functions of the first front electrode 21 to the fourth front electrode 24 are to apply electrical stimulation to the flank muscles. The first front electrode 21 to the fourth front electrode 24 have, for example, shapes that can define the longitudinal direction and the short direction.

The function of the first front electrode 21 and the third front electrode 23 is to apply electrical stimulation to the flank muscle of the right half. The first front electrode 21 is provided, for example, on the inner surface of the second portion 12. For example, the third front electrode 23 is provided below the first front electrode 21 in the inner surface of the second portion 12. The longitudinal directions of the first front electrode 21 and the third front electrode 23 are along the longitudinal direction of the belt 10. The output form of the current output from the first front electrode 21 and the third front electrode 23 is substantially the same. In addition, the attachment position of the 1st front electrode 21 and the 3rd front electrode 23 with respect to the inner surface of the 2nd part 12 can be changed.

The functions of the second front electrode 22 and the fourth front electrode 24 are to apply electrical stimulation to the left abdominal muscles. The second front electrode 22 is provided, for example, on the inner surface of the third portion 13. For example, the fourth front electrode 24 is provided below the second front electrode 22 on the inner surface of the third portion 13. The longitudinal directions of the second front electrode 22 and the fourth front electrode 24 are along the longitudinal direction of the belt 10. The output form of the current output from the second front electrode 22 and the fourth front electrode 24 is substantially the same. In addition, the attachment position of the 2nd front electrode 22 and the 4th front electrode 24 with respect to the inner surface of the 3rd part 13 is changeable.

FIG. 2 shows an example of positions where the first front electrode 21 to the fourth front electrode 24 are attached to the body. The first front electrode 21 to the fourth front electrode 24 are attached to, for example, the lateral abdominal muscles between the ribs and the iliac so as to avoid the rectus abdominis muscles. The flank muscles include transverse abdominal muscles, internal oblique muscles, and external oblique muscles. The 1st front electrode 21 is affixed above the 3rd front electrode 23, for example in the body height direction. For example, the second front electrode 22 is pasted above the fourth front electrode 24 in the body height direction. The distance between the application position of the first front electrode 21 and the application position of the second front electrode 22 in the left-right direction of the body is the same as the application position of the third front electrode 23 and the fourth front electrode 24 in the left-right direction of the body. It is wider than the distance from the pasting position.

As shown in FIG. 1, the back electrode 30 includes a first back electrode 31, a second back electrode 32, a third back electrode 33, and a fourth back electrode 34. The functions of the first back electrode 31 to the fourth back electrode 34 are to apply electrical stimulation to the back muscles. The first back electrode 31 to the fourth back electrode 34 have shapes that can define, for example, the longitudinal direction and the short direction.

The functions of the first back electrode 31 and the third back electrode 33 are to apply electrical stimulation to the back muscles of the right half. For example, the first back electrode 31 is provided on the inner surface of the first portion 11. For example, the third back electrode 33 is provided below the first back electrode 31 on the inner surface of the first portion 11. The longitudinal direction of the first back electrode 31 and the third back electrode 33 is along the longitudinal direction of the belt 10. The output form of the current output from the first back electrode 31 and the third back electrode 33 is substantially the same.

The functions of the second back electrode 32 and the fourth back electrode 34 are to apply electrical stimulation to the back muscles of the left half. The second back electrode 32 is provided, for example, on the inner surface of the first portion 11. For example, the fourth back electrode 34 is provided below the second back electrode 32 on the inner surface of the first portion 11. The longitudinal direction of the second back electrode 32 and the fourth back electrode 34 is along the longitudinal direction of the belt 10. The output form of the current output from the second back electrode 32 and the fourth back electrode 34 is substantially the same. Note that the mounting positions of the first back electrode 31 to the fourth back electrode 34 with respect to the inner surface of the first portion 11 can be changed.

As described above, the front electrode 20 and the back electrode 30 are electrodes capable of applying electrical stimulation to a target region of the body including the flank and back muscles.

FIG. 3 shows an example of the positions where the first back electrode 31 to the fourth back electrode 34 are attached to the body. The first back electrode 31 to the fourth back electrode 34 are attached to, for example, the back muscles between the ribs and the iliac bones. The back muscle includes, for example, the lumbar multifidus. The 1st back electrode 31 is affixed upwards rather than the 3rd back electrode 33, for example in the body height direction. For example, the second back electrode 32 is attached above the fourth back electrode 34 in the height direction of the body. The distance between the application position of the first back electrode 31 and the application position of the second back electrode 32 in the left-right direction of the body is such that the position of application of the third back electrode 33 and the fourth back electrode 34 in the left-right direction of the body. This is substantially the same as the distance from the pasting position.

The function of the detection unit 40 shown in FIG. 1 is to detect the movement of the body and to output a signal reflecting the detection result to the control unit 60. An example of the detection unit 40 is an angular velocity sensor. The detection unit 40 is provided, for example, inside the third portion 13 of the belt 10. That is, the detection unit 40 detects a waist motion, which is an example of a body motion. In one example, the detection unit 40 detects an angular velocity around a first axis that is an axis along the height direction of the human body and a second axis that is an axis along the horizontal direction of the human body. The cord 90 electrically connects the controller 50 to the detection unit 40, the front electrode 20, and the back electrode 30.

FIG. 4 shows the electrical connection relationship of the electrical stimulation device 1. The controller 50 includes a power supply unit 51, a control unit 60, an operation unit 70, and a notification unit 80. The function of the power supply unit 51 is to supply the power of the primary battery or the secondary battery to the control unit 60, the front electrode 20, the back electrode 30, and the like. The power supply unit 51 and the control unit 60 are accommodated in the controller 50. The function of the operation unit 70 is to input information related to the operation of the electrical stimulation device 1. The function of the notification unit 80 is to output information. An example of the notification unit 80 is a liquid crystal display.

The operation unit 70 includes a power switch 71 and a mode selection unit 72. The function of the power switch 71 is to switch the power supply of the electrical stimulation device 1 on and off. The function of the mode selection unit 72 is to select an operation mode executed by the electrical stimulation device 1. The operation mode includes a plurality of operation modes in which output forms of currents output from the front electrode 20 and the back electrode 30 are different from each other. The plurality of operation modes include, for example, a first walking operation mode to a third walking operation mode, a first traveling operation mode to a third traveling operation mode, a first torsion operation mode to a third torsion operation mode, and The first bending operation mode to the second bending operation mode are included.

The control unit 60 controls the current output from the front electrode 20 and the back electrode 30 based on the information about the waist movement included in the detection result of the detection unit 40. Specifically, the control unit 60 seems to partially or entirely overlap the period in which electrical stimulation is applied to the abdominal muscles by the front electrode 20 and the period in which electrical stimulation is applied to the back muscles by the back electrode 30. The outputs of the front electrode 20 and the back electrode 30 are controlled. The control unit 60 stores in advance various types of information that are referred to in order to control the outputs of the front electrode 20 and the back electrode 30. An example of the various types of information includes a current output form corresponding to various operation modes selected by the mode selection unit 72 and a threshold value for comparison with the angular velocity value obtained from the detection result of the detection unit 40. The control unit 60 can adjust at least one of the frequency and intensity of the electrical stimulation output from the front electrode 20 and the back electrode 30 based on the operation of the operation unit 70 or the like.

When any of the walking operation mode, the traveling operation mode, and the torsional operation mode is selected by the mode selection unit 72, the angular velocity around the first axis that is an axis along the height direction of the human body is detected by the detection unit 40. Detected. When the bending operation mode is selected by the mode selection unit 72, the angular velocity around the second axis that is an axis along the horizontal direction of the human body is detected by the detection unit 40. The detection unit 40 detects an angular velocity around the first axis or the second axis every few microseconds, for example, and outputs a signal reflecting the detection result to the control unit 60.

The control unit 60 calculates the angular velocity from the detection result of the detection unit 40 by executing the following arithmetic processing. First, moving average processing is performed, and the detection result of the digitized detection unit 40 is passed through a low-pass filter, whereby a certain high-frequency signal is removed from the detection result of the detection unit 40, and a sine wave signal is generated. . Next, the angular velocity is calculated based on this sine wave signal.

With reference to FIG. 5, an example of an output form of current in the first walking operation mode will be described. FIG. 5A shows the leg walking phase in the walking motion. One cycle of walking motion is divided into two walking phases, that is, the stance phase and the swing phase. The stance phase is a period in which at least a part of the foot is in contact with the ground or the floor. The free leg period is a period in which the foot is away from the ground or floor.

(B) of FIG. 5 shows the movement state of a flank muscle. When the left leg walking phase is the stance phase and the right leg walking phase is the swing phase, the trunk rotates to the right around the first axis. For this reason, the flank muscles of the left half are extended, and the flank muscles of the right half are contracted. Between the right leg walking phase transitions from the swing phase to the stance phase and the left leg walking phase transitions from the stance phase to the swing phase, the trunk rotates further to the right around the first axis, and left The flank muscles of the half are stretched most during the walking motion, and the flank muscles of the right half are contracted most during the walking motion. In this case, the flank muscle of the right half acts as the main muscle, and the flank muscle of the left half acts as the antagonist muscle.

When the left leg walking phase is the swing phase and the right leg walking phase is the stance phase, the trunk rotates to the left around the first axis. As a result, the left abdominal muscles contract and the right half abdominal muscles extend. Between the left leg walking phase transitions from the swing phase to the stance phase and the right leg walking phase transitions from the stance phase to the swing phase, the trunk rotates further to the left around the first axis, The flank muscles of the half are contracted most during the walking motion, and the flank muscles of the right half are stretched most during the walking motion. In this case, the left abdominal abdominal muscle acts as the main muscle, and the right half abdominal muscle acts as the antagonistic muscle.

(C) of FIG. 5 shows the value of the angular velocity obtained from the detection result of the detection unit 40.

When the user 100 using the electrical stimulation device 1 performs a walking motion, the detection unit 40 detects the angular velocity around the first axis. In one example, the angular velocity indicates a positive value when the trunk rotates to the right around the first axis, and the angular velocity indicates a negative value when the trunk rotates to the left around the first axis. When one of the right and left flank muscles is most extended, or when the walking motion is stopped, the value of the angular velocity is substantially zero. For example, when the angular velocity is less than a predetermined angular velocity, it is determined that the value of the angular velocity is substantially zero.

The control unit 60 controls the current output from the front electrode 20 and the back electrode 30 based on the operation mode selected by the mode selection unit 72 and the relationship between the value of the angular velocity and the threshold value. In one example, the control unit 60 determines the current output and stop timing based on the relationship between the value of the angular velocity and the threshold value. The threshold value referred to in the first walking motion mode is, for example, the threshold value T. An example of the threshold value T is 0 as shown in FIG.

The control unit 60 determines that the determination result is valid when the number of times that the same determination result is continuously obtained with respect to the relationship between the value of the angular velocity and the threshold is equal to or greater than a predetermined number of times, and determines the determination result as the front. This is used to control the output of the electrode 20 and the back electrode 30. On the other hand, when the number of times that the same determination result is continuously obtained for the relationship between the value of the angular velocity and the threshold is less than a predetermined number, or when the control unit 60 does not continue, the determination result is invalid. The determination result is not used for controlling the outputs of the front electrode 20 and the back electrode 30. The predetermined number of times is set for each operation mode.

(D) in FIG. 5 shows a current output form.

The controller 60 performs electrical stimulation on the back muscles during the period in which electrical stimulation is applied to the flank muscles by the first front electrode 21 and the third front electrode 23, and by the first back electrode 31 and the third back electrode 33. The outputs of the front electrode 20 and the back electrode 30 are controlled so that part or all of the given period overlaps. A period in which electrical stimulation is applied to the flank muscles by the first front electrode 21 and the third front electrode 23, and electrical stimulation is applied to the back muscles by the first back electrode 31 and the third back electrode 33. A period in which a part or all of the existing period overlaps is defined as a first period. In addition, the control unit 60 electrically applies electrical stimulation to the abdominal muscles by the second front electrode 22 and the fourth front electrode 24 and the back muscles by the second back electrode 32 and the fourth back electrode 34. The outputs of the front electrode 20 and the back electrode 30 are controlled so that part or all of the period during which the stimulus is applied overlaps. A period in which electrical stimulation is applied to the flank muscles by the second front electrode 22 and the fourth front electrode 24, and electrical stimulation is applied to the back muscles by the second back electrode 32 and the fourth back electrode 34. A period in which a part or all of the existing period overlaps is defined as a second period.

In one example, the control unit 60 controls the outputs of the front electrode 20 and the back electrode 30 so that the first period and the second period are alternately switched.

When the value of the angular velocity changes from the magnitude less than the threshold T to the magnitude greater than or equal to the threshold T at the time t11, the control unit 60 performs the second front electrode 22, the fourth front electrode 24, and the second back electrode 32. , And the fourth back electrode 34 is caused to output current. When the value of the angular velocity is greater than or equal to the threshold value T, it is suggested that the flank muscle of the left half is extending as an antagonist muscle. Therefore, when the detection unit 40 detects that the left abdominal flank muscle is extended, the control unit 60 corresponds to the second front electrode 22 so that electrical stimulation is applied to the left flank abdominal muscle. The current is output from the fourth front electrode 24 and the current is also output from the corresponding second back electrode 32 and fourth back electrode 34.

When the value of the angular velocity changes from the magnitude greater than or equal to the threshold T to the magnitude less than the threshold T at time t <b> 12, the control unit 60 performs the second front electrode 22, the fourth front electrode 24, and the second back electrode 32. And the output of current by the fourth back electrode 34 is stopped. Then, the controller 60 causes the first front electrode 21, the third front electrode 23, the first back electrode 31, and the third back electrode 33 to output current. When the value of the angular velocity is less than the threshold value T, it is suggested that the flank muscle of the right half is extending as an antagonist muscle. Therefore, when the detection unit 40 detects that the right abdominal flank muscle is extended, the control unit 60 corresponds to the first front electrode 21 corresponding to the electrical stimulation applied to the right flank muscle. The current is output from the third front electrode 23, and the current is also output from the corresponding first back electrode 31 and third back electrode 33.

When the value of the angular velocity changes from the magnitude less than the threshold value T to the magnitude greater than or equal to the threshold value T at the time t <b> 13, the control unit 60 performs the first front electrode 21, the third front electrode 23, and the first back electrode 31. , And the output of current by the third back electrode 33 is stopped. Then, the control unit 60 causes the second front electrode 22, the fourth front electrode 24, the second back electrode 32, and the fourth back electrode 34 to output current. When the first walking operation mode is continued after time t13, the control unit 60 repeatedly executes the same processing as the processing executed from time t12 to time t13. Note that, even when the first travel operation mode is selected by the mode selection unit 72, the control unit 60 performs substantially the same processing as that of the first walking operation mode.

With reference to FIG. 6, an example of an output form of current in the second walking operation mode will be described. FIG. 6A shows the leg walking phase in the walking motion. FIG. 6B shows the operating state of the flank muscles. FIG. 6C shows the value of the angular velocity obtained from the detection result of the detection unit 40. The contents related to (a) to (c) in FIG. 6 are substantially the same as the contents related to (a) to (c) in FIG.

(D) in FIG. 6 shows a current output form.

The controller 60 performs electrical stimulation on the back muscles during the period in which electrical stimulation is applied to the flank muscles by the first front electrode 21 and the third front electrode 23, and by the second back electrode 32 and the fourth back electrode 34. The outputs of the front electrode 20 and the back electrode 30 are controlled so that part or all of the given period overlaps. A period in which electrical stimulation is applied to the flank muscles by the first front electrode 21 and the third front electrode 23, and electrical stimulation is applied to the back muscles by the second back electrode 32 and the fourth back electrode 34. A period in which a part or all of the existing period overlaps is defined as a third period. In addition, the control unit 60 electrically applies electrical stimulation to the flank muscles by the second front electrode 22 and the fourth front electrode 24 and the back muscles by the first back electrode 31 and the third back electrode 33. The outputs of the front electrode 20 and the back electrode 30 are controlled so that part or all of the period during which the stimulus is applied overlaps. A period in which electrical stimulation is applied to the flank muscles by the second front electrode 22 and the fourth front electrode 24, and electrical stimulation is applied to the back muscles by the first back electrode 31 and the third back electrode 33. A period in which a part or all of the existing period overlaps is defined as a fourth period.

In one example, the control unit 60 controls the outputs of the front electrode 20 and the back electrode 30 so that the third period and the fourth period are alternately switched.

When the value of the angular velocity changes from the magnitude less than the threshold T to the magnitude greater than or equal to the threshold T at time t <b> 21, the control unit 60 performs the second front electrode 22, the fourth front electrode 24, and the first back electrode 31. , And the third back electrode 33 is caused to output current. When the value of the angular velocity changes from the magnitude greater than or equal to the threshold T to the magnitude less than the threshold T at time t22, the control unit 60 performs the second front electrode 22, the fourth front electrode 24, and the first back electrode 31. , And the output of current by the third back electrode 33 is stopped. Then, the control unit 60 causes the first front electrode 21, the third front electrode 23, the second back electrode 32, and the fourth back electrode 34 to output current.

When the value of the angular velocity changes from the magnitude less than the threshold T to the magnitude greater than or equal to the threshold T at time t23, the control unit 60 performs the first front electrode 21, the third front electrode 23, and the second back electrode 32. And the output of current by the fourth back electrode 34 is stopped. Then, the control unit 60 causes the second front electrode 22, the fourth front electrode 24, the first back electrode 31, and the third back electrode 33 to output current. When the second walking motion mode is continued after time t23, the control unit 60 repeatedly executes the same processing as the processing executed from time t22 to time t23. Note that, even when the second traveling operation mode is selected by the mode selection unit 72, the control unit 60 performs substantially the same process as the second walking operation mode.

With reference to FIG. 7, an example of an output form of current in the third walking operation mode will be described. FIG. 7A shows a leg walking phase in a walking motion. FIG. 7B shows the operating state of the flank muscles. (C) of FIG. 7 shows the value of the angular velocity obtained from the detection result of the detection unit 40. Since the contents related to (a) to (c) in FIG. 7 are substantially the same as the contents related to (a) to (c) in FIG. 5, a part or all of the description of the common matters is omitted.

Threshold values referred to in the third walking motion mode are, for example, the first threshold value TW1, the second threshold value TW2, and the third threshold value TW3. As shown in FIG. 7C, the first threshold TW1 exists in a region where the angular velocity shows a positive value, for example. The second threshold value TW2 exists in a region where the angular velocity shows a negative value, for example. An example of the third threshold TW3 is 0.

(D) in FIG. 7 shows a current output form.

The control unit 60 applies electrical stimulation to the flank muscles by one of the first front electrode 21 and the second front electrode 22 during a predetermined period in which electrical stimulation is applied to the back muscles by the back electrode 30. The front electrode 20 and the back electrode 30 are controlled so that electrical stimulation is not applied to the flank muscles by the other of the front electrode 21 and the second front electrode 22. Specifically, the control unit 60 includes an electrode that applies electrical stimulation to the flank muscles and an electrode that does not apply electrical stimulation to the flank muscles of the first front electrode 21 and the second front electrode 22 during a predetermined period. The front electrode 20 and the back electrode 30 are controlled so as to be alternately switched.

In one example, the control unit 60 includes a period in which electrical stimulation is applied to the flank muscles by the first front electrode 21 and the third front electrode 23 and a second front electrode 22 and a fourth front surface in a predetermined period. The front electrode 20 and the back electrode 30 are controlled so that the period during which electrical stimulation is applied to the flank muscles by the electrode 24 is alternately switched.

When the value of the angular velocity changes from the magnitude less than the third threshold TW3 to the magnitude greater than or equal to the third threshold TW3 at time t31, the control unit 60 applies the second front electrode 22 and the fourth front electrode 24. Output current. When the value of the angular velocity is greater than or equal to the third threshold value TW3, it is suggested that the left abdominal flank muscles are extended as antagonistic muscles. Therefore, when the detection unit 40 detects that the left abdominal flank muscle is extended, the control unit 60 corresponds to the second front electrode 22 so that electrical stimulation is applied to the left flank abdominal muscle. The current is output from the fourth front electrode 24.

At time t32, when the value of the angular velocity changes from the magnitude less than the first threshold TW1 to the magnitude greater than or equal to the first threshold TW1, the control unit 60 causes the back electrode 30 to output a current. When the value of the angular velocity changes from the magnitude greater than or equal to the first threshold value TW1 to the magnitude less than the first threshold value TW1 at time t33, the control unit 60 stops the output of current from the back electrode 30. The first threshold value TW1 is set so that the right leg walking phase includes the timing of transition from the swing phase to the stance phase when the angular velocity value is greater than or equal to the first threshold value TW1. Is preferred. For this reason, the timing at which the right leg lands is included in the period between time t32 and time t33.

When the angular velocity value changes from the magnitude greater than or equal to the third threshold value TW3 to the magnitude less than the third threshold value TW3 at time t34, the control unit 60 uses the second front electrode 22 and the fourth front electrode 24. The output of current is stopped, and current is output to the first front electrode 21 and the third front electrode 23. When the value of the angular velocity is less than the third threshold value TW3, it is suggested that the flank muscle of the right half is extended as an antagonistic muscle. Therefore, when the detection unit 40 detects that the right abdominal flank muscle is extended, the control unit 60 corresponds to the first front electrode 21 corresponding to the electrical stimulation applied to the right flank muscle. A current is output from the third front electrode 23.

At time t35, when the value of the angular velocity changes from the magnitude greater than or equal to the second threshold TW2 to the magnitude less than the second threshold TW2, the controller 60 causes the back electrode 30 to output a current. When the value of the angular velocity changes from the magnitude less than the second threshold TW2 to the magnitude greater than or equal to the second threshold TW2 at time t36, the control unit 60 stops the output of current from the back electrode 30. Note that the second threshold value TW2 is set so as to include the timing when the walking phase of the left leg shifts from the swing phase to the stance phase when the value of the angular velocity is less than the second threshold TW2. Is preferred. For this reason, the timing at which the left leg lands is included in the period between time t35 and time t36.

When the value of the angular velocity changes from the magnitude less than the third threshold TW3 to the magnitude greater than or equal to the third threshold TW3 at time t37, the control unit 60 uses the first front electrode 21 and the third front electrode 23. The output of current is stopped, and current is output to the second front electrode 22 and the fourth front electrode 24. When the third walking motion mode is continued after time t37, the control unit 60 repeatedly executes the same processing as the processing executed from time t32 to time t37. Note that, even when the third travel operation mode is selected by the mode selection unit 72, the control unit 60 performs substantially the same processing as that of the third walking operation mode.

Referring to FIG. 8, an example of a current output form in the first torsional operation mode will be described. FIG. 8A shows the rotation phase in the twisting operation. One cycle of the twisting operation is divided into two rotation phases, that is, a right rotation phase and a left rotation phase. The right turning period is an operation in which the trunk rotates to the right around the first axis. The left turning period is an operation in which the trunk rotates to the left around the first axis.

(B) of FIG. 8 shows the movement state of the flank muscles. When the rotation phase is the right rotation phase, the left abdominal muscles extend and the right half abdominal muscles contract. When the rotation phase changes from the right rotation period to the left rotation period, the flank muscle of the left half stretches most during the torsion movement, and the flank muscle of the right half body contracts most during the torsion movement. In this case, the flank muscle of the right half acts as the main muscle, and the flank muscle of the left half acts as the antagonist muscle.

When the rotation phase is the left rotation phase, the left abdominal flank muscles contract and the right half flank muscles extend. When the rotation phase changes from the left rotation period to the right rotation period, the left abdominal muscles contract most during the torsional movement, and the right half flank muscles extend the most during the torsional movement. In this case, the left abdominal abdominal muscle acts as the main muscle, and the right half abdominal muscle acts as the antagonistic muscle.

(C) of FIG. 8 shows the value of the angular velocity obtained from the detection result of the detection unit 40.

When the user 100 using the electrical stimulation device 1 forms a twisting motion, the detection unit 40 detects an angular velocity around the first axis that is an axis along the height direction of the human body. In one example, the angular velocity indicates a positive value when the trunk rotates to the right around the first axis, and the angular velocity indicates a negative value when the trunk rotates to the left around the first axis. When one of the right and left flank muscles is most extended, or when the torsional motion is stopped, the value of the angular velocity is substantially zero. For example, when the angular velocity is less than a predetermined angular velocity, it is determined that the value of the angular velocity is substantially zero.

The control unit 60 controls the current output from the front electrode 20 and the back electrode 30 based on the operation mode selected by the mode selection unit 72 and the relationship between the value of the angular velocity and the threshold value. In one example, the control unit 60 determines the current output and stop timing based on the relationship between the value of the angular velocity and the threshold value. The threshold value referred to in the first torsional operation mode is, for example, the threshold value T. An example of the threshold value T is 0 as shown in FIG.

(D) in FIG. 8 shows a current output form. In addition, since the output form of the current in the first torsional operation mode is substantially the same as the output form of the current in the first walking operation mode, a part or all of the description is omitted.

When the value of the angular velocity changes from the magnitude less than the threshold T to the magnitude greater than or equal to the threshold T at time t41, the control unit 60 performs the second front electrode 22, the fourth front electrode 24, and the second back electrode 32. , And the fourth back electrode 34 is caused to output current. When the value of the angular velocity is greater than or equal to the threshold value T, it is suggested that the flank muscle of the left half is extending as an antagonist muscle. Therefore, when the detection unit 40 detects that the left abdominal flank muscle is extended, the control unit 60 corresponds to the second front electrode 22 so that electrical stimulation is applied to the left flank abdominal muscle. The current is output from the fourth front electrode 24 and the current is also output from the corresponding second back electrode 32 and fourth back electrode 34.

When the value of the angular velocity changes from the magnitude greater than or equal to the threshold T to the magnitude less than the threshold T at time t42, the control unit 60 causes the second front electrode 22, the fourth front electrode 24, and the second back electrode 32 to be changed. And the output of current by the fourth back electrode 34 is stopped. Then, the controller 60 causes the first front electrode 21, the third front electrode 23, the first back electrode 31, and the third back electrode 33 to output current. When the value of the angular velocity is less than the threshold value T, it is suggested that the flank muscle of the right half is extending as an antagonist muscle. Therefore, when the detection unit 40 detects that the right abdominal flank muscle is extended, the control unit 60 corresponds to the first front electrode 21 corresponding to the electrical stimulation applied to the right flank muscle. The current is output from the third front electrode 23, and the current is also output from the corresponding first back electrode 31 and third back electrode 33.

When the value of the angular velocity changes from the magnitude less than the threshold value T to the magnitude greater than or equal to the threshold value T at the time t43, the control unit 60 performs the first front electrode 21, the third front electrode 23, and the first back electrode 31. , And the output of current by the third back electrode 33 is stopped. Then, the control unit 60 causes the second front electrode 22, the fourth front electrode 24, the second back electrode 32, and the fourth back electrode 34 to output current. When the first torsional operation mode is continued after time t43, the control unit 60 repeatedly executes the same processing as the processing executed from time t42 to time t43.

With reference to FIG. 9, an example of a current output form in the second torsional operation mode will be described. FIG. 9A shows the rotation phase in the twisting operation. FIG. 9B shows the operating state of the flank muscles. FIG. 9C shows the value of the angular velocity obtained from the detection result of the detection unit 40. Since the contents related to (a) to (c) in FIG. 9 are substantially the same as the contents related to (a) to (c) in FIG. 8, the description thereof is omitted.

(D) of FIG. 9 shows a current output form. In addition, since the output form of the current in the second torsional operation mode is substantially the same as the output form of the current in the second walking operation mode, a part or all of the description is omitted.

When the value of the angular velocity changes from the magnitude less than the threshold T to the magnitude greater than or equal to the threshold T at time t <b> 51, the control unit 60 performs the second front electrode 22, the fourth front electrode 24, and the first back electrode 31. , And the third back electrode 33 is caused to output current. When the value of the angular velocity changes from the magnitude greater than or equal to the threshold T to the magnitude less than the threshold T at time t52, the control unit 60 performs the second front electrode 22, the fourth front electrode 24, and the first back electrode 31. , And the output of current by the third back electrode 33 is stopped. Then, the control unit 60 causes the first front electrode 21, the third front electrode 23, the second back electrode 32, and the fourth back electrode 34 to output current.

When the value of the angular velocity changes from the magnitude less than the threshold T to the magnitude greater than or equal to the threshold T at time t <b> 53, the control unit 60 performs the first front electrode 21, the third front electrode 23, and the second back electrode 32. And the output of current by the fourth back electrode 34 is stopped. Then, the control unit 60 causes the second front electrode 22, the fourth front electrode 24, the first back electrode 31, and the third back electrode 33 to output current. When the second torsional operation mode is continued after time t53, the control unit 60 repeatedly executes the same processing as the processing executed from time t52 to time t53.

Referring to FIG. 10, an example of a current output form in the third torsional operation mode will be described. FIG. 10A shows the rotation phase in the twisting operation. FIG. 10B shows the operating state of the flank muscles. FIG. 10C shows the angular velocity value obtained from the detection result of the detection unit 40. Since the contents related to (a) to (c) in FIG. 10 are substantially the same as the contents related to (a) to (c) in FIG. 8, a part or all of the description of the common matters is omitted.

Threshold values referred to in the third torsional operation mode are, for example, the first threshold value TR1, the second threshold value TR2, and the third threshold value TR3. The first threshold value TR1 exists in a region where the angular velocity shows a positive value, for example. For example, the second threshold value TR2 exists in a region where the angular velocity shows a negative value. An example of the third threshold TW3 is 0.

(D) in FIG. 10 shows a current output form. In addition, since the output form of the current in the third torsional operation mode is substantially the same as the output form of the current in the third walking operation mode, a part or all of the description is omitted.

When the value of the angular velocity changes from the magnitude less than the third threshold value TR3 to the magnitude greater than or equal to the third threshold value TR3 at time t61, the control unit 60 applies the second front electrode 22 and the fourth front electrode 24. Output current. When the value of the angular velocity is greater than or equal to the third threshold value TR3, it is suggested that the left flank muscle is extended as an antagonist muscle. Therefore, when the detection unit 40 detects that the left abdominal flank muscle is extended, the control unit 60 corresponds to the second front electrode 22 so that electrical stimulation is applied to the left flank abdominal muscle. The current is output from the fourth front electrode 24.

When the angular velocity value changes from the magnitude less than the first threshold value TR1 to the magnitude greater than or equal to the first threshold value TR1 at time t62, the control unit 60 uses the back electrode 30 (the first back electrode 31 and the second back electrode 31). A current is output to the back electrode 32, the third back electrode 33, and the fourth back electrode 34). When the value of the angular velocity changes from the magnitude greater than or equal to the first threshold value TR1 to the magnitude less than the first threshold value TR1 at time t63, the control unit 60 stops the output of current from the back electrode 30.

When the value of the angular velocity changes from the magnitude greater than or equal to the third threshold value TR3 to a magnitude less than the third threshold value TR3 at time t64, the control unit 60 uses the second front electrode 22 and the fourth front electrode 24. Stops current output. Then, the control unit 60 causes the first front electrode 21 and the third front electrode 23 to output current. When the value of the angular velocity is less than the third threshold value TR3, it is suggested that the flank muscle of the right half is extended as an antagonist muscle. Therefore, when the detection unit 40 detects that the right abdominal flank muscle is extended, the control unit 60 corresponds to the first front electrode 21 corresponding to the electrical stimulation applied to the right flank muscle. A current is output from the third front electrode 23.

At time t65, when the angular velocity value changes from the magnitude greater than or equal to the second threshold value TR2 to a magnitude less than the second threshold value TR2, the control unit 60 causes the back electrode 30 to output a current. At time t66, when the value of the angular velocity changes from the magnitude less than the second threshold value TR2 to the magnitude greater than or equal to the second threshold value TR2, the control unit 60 stops the current output from the back electrode 30.

When the value of the angular velocity changes from the magnitude less than the third threshold value TR3 to the magnitude greater than or equal to the third threshold value TR3 at time t67, the control unit 60 uses the first front electrode 21 and the third front electrode 23. Stops current output. Then, the control unit 60 causes the second front electrode 22 and the fourth front electrode 24 to output current. When the third torsional operation mode is continued after time t67, the control unit 60 repeatedly executes the same processing as the processing executed from time t62 to time t67.

Referring to FIG. 11, an example of a current output form in the first bending operation mode will be described. FIG. 11 (a) shows a back and forth bending phase in the bending operation. One period of the bending operation is divided into two anteroposterior bending phases, that is, a forward bending period and a backward bending period. The forward bending period is an operation in which the trunk rotates forward around a second axis that is an axis along the horizontal direction of the human body. The backward bending period is an operation in which the trunk rotates backward about the second axis.

(B) of FIG. 11 shows the movement state of the muscle of the target part. When the anteroposterior flexion phase is the forward flexion phase, the flank muscles contract and the back muscles extend. When the anteroposterior flexion phase changes from the forward flexion phase to the back flexion phase, the flank muscles are most contracted in the flexion motion and the back muscles are most extended in the flexion motion. In this case, the flank muscle acts as the main muscle and the back muscle acts as the antagonist muscle.

When the anteroposterior bending phase is the backward bending phase, the flank muscles extend and the back muscles contract. When the anteroposterior flexion phase changes from the backward flexion phase to the forward flexion phase, the flank muscles are most extended in the flexion motion and the back muscles are most contracted in the flexion motion. In this case, the back muscle acts as the main muscle and the flank muscle acts as the antagonist muscle.

(C) of FIG. 11 shows the value of the angular velocity obtained from the detection result of the detection unit 40.

When the user 100 using the electrical stimulation device 1 forms a bending motion, the angular velocity around the second axis is detected by the detection unit 40. In one example, the angular velocity indicates a positive value when the trunk rotates forward about the second axis, and the angular velocity indicates a negative value when the trunk rotates backward about the second axis. When one of the flank and back muscles is most extended, or when the bending motion is stopped, the value of the angular velocity is substantially zero. For example, when the angular velocity is less than a predetermined angular velocity, it is determined that the value of the angular velocity is substantially zero.

The control unit 60 controls the current output from the front electrode 20 and the back electrode 30 based on the operation mode selected by the mode selection unit 72 and the relationship between the value of the angular velocity and the threshold value. In one example, the control unit 60 determines the current output and stop timing based on the relationship between the value of the angular velocity and the threshold value.

Threshold values referred to in the first bending operation mode are, for example, the following four types. The first is a first threshold value TF1 that is referred to in order to flow current to the flank and back muscles and exists in a region where the angular velocity shows a positive value. The second is a second threshold value TF2 that is referred to in order to stop the current flow and exists in a region where the angular velocity shows a negative value. The third is a third threshold value TF3 that is referred to in order to flow current to the flank and back muscles and exists in a region where the angular velocity shows a negative value. The fourth is a fourth threshold value TF4 which is referred to in order to stop the current flow and exists in a region where the angular velocity shows a positive value.

(D) in FIG. 11 shows a current output form.

The controller 60 controls the front electrode 20 so that part or all of the period in which electrical stimulation is applied to the flank muscles by the front electrode 20 and the period in which electrical stimulation is applied to the back muscles by the back electrode 30, The output of the back electrode 30 is controlled. In addition, the control unit 60 causes the front electrode 20 and the back electrode 30 to output current during a period in which the angular velocity value is included in a predetermined range. The predetermined range includes a first range and a second range.

At time t71, when the angular velocity value changes from a magnitude less than the first threshold value TF1 to a magnitude greater than or equal to the first threshold value TF1, the control unit 60 causes the front electrode 20 and the back electrode 30 to output current. At time t72, when the value of the angular velocity changes from the magnitude greater than or equal to the second threshold value TF2 to the magnitude less than the second threshold value TF2, the control unit 60 stops the current output from the front electrode 20 and the rear electrode 30. . Thus, the control unit 60 changes the angular velocity value from the magnitude less than the first threshold value TF1 to the magnitude greater than or equal to the first threshold value TF1, and then the first range that is greater than or equal to the second threshold value TF2. Current is output to the front electrode 20 and the back electrode 30.

At time t73, when the value of the angular velocity changes from the magnitude greater than or equal to the third threshold TF3 to the magnitude less than the third threshold TF3, the control unit 60 causes the front electrode 20 and the back electrode 30 to output current. When the angular velocity value changes from a value less than the fourth threshold value TF4 to a value equal to or greater than the fourth threshold value TF4 at time t74, the control unit 60 stops the current output from the front electrode 20 and the back electrode 30. . Thus, the control unit 60 changes the angular velocity value from the magnitude greater than or equal to the third threshold value TF3 to a magnitude less than the third threshold value TF3, and then the second range that is less than the fourth threshold value TF4. Current is output to the front electrode 20 and the back electrode 30. When the first bending operation mode is continued after time t74, the control unit 60 repeatedly executes the same processing as the processing executed from time t71 to time t74.

Referring to FIG. 12, an example of a current output form in the second bending operation mode will be described. (A) of FIG. 12 shows the front-back bending phase in bending operation. (B) of FIG. 12 shows the movement state of the muscle of the target part. (C) of FIG. 12 shows the value of the angular velocity obtained from the detection result of the detection unit 40. The contents related to (a) to (c) in FIG. 12 are substantially the same as the contents related to (a) to (c) in FIG.

(D) in FIG. 12 shows a current output form.

The control unit 60 includes the front electrode 20 and the back electrode so that a part of the period in which the electrical stimulation is applied to the flank muscles by the front electrode 20 and the period in which the electrical stimulation is applied to the back muscles by the back electrode 30 overlap. 30 outputs are controlled. In one example, the control unit 60 continues to apply electrical stimulation to the back muscles by the back electrode 30 during execution of the second bending operation mode. In addition, the control unit 60 causes the front electrode 20 to output a current during a period in which the angular velocity value is included in a predetermined range.

At time t81, the power supply of the electrical stimulation device 1 is set to ON, and the second bending operation mode is executed, so that the control unit 60 causes the back electrode 30 to output a current. When the angular velocity value changes from the magnitude less than the first threshold TF1 to the magnitude greater than or equal to the first threshold TF1 at time t82, the control unit 60 causes the front electrode 20 to output a current. When the value of the angular velocity changes from the magnitude greater than or equal to the second threshold value TF2 to the magnitude less than the second threshold value TF2 at time t83, the control unit 60 stops the current output from the front electrode 20. Thus, the control unit 60 changes the angular velocity value from the magnitude less than the first threshold value TF1 to the magnitude greater than or equal to the first threshold value TF1, and then the first range that is greater than or equal to the second threshold value TF2. Is included, the current is output to the front electrode 20.

At time t84, when the value of the angular velocity changes from a magnitude greater than or equal to the third threshold TF3 to a magnitude less than the third threshold TF3, the control unit 60 causes the front electrode 20 to output a current. When the angular velocity value changes from a value less than the fourth threshold value TF4 to a value equal to or greater than the fourth threshold value TF4 at time t85, the control unit 60 stops the output of current from the front electrode 20. Thus, the control unit 60 changes the angular velocity value from the magnitude greater than or equal to the third threshold value TF3 to a magnitude less than the third threshold value TF3, and then the second range that is less than the fourth threshold value TF4. Is included, the current is output to the front electrode 20. When the second bending operation mode is continued after time t85, the control unit 60 repeatedly executes the same processing as the processing executed from time t82 to time t85. Note that the control unit 60 stops the output of current from the back electrode 30 when the second bending operation mode is stopped.

The inventor of the present application conducted evaluation tests using various electrical stimulation patterns. The purpose of the evaluation test was the relationship between the electrical stimulation pattern and the sense of firming of the muscles around the waist, and the electrical stimulation pattern and the muscles around the waist when electrical stimulation based on various electrical stimulation patterns was applied to the target site. It is to evaluate the relationship with the sense that is trained.

The number of evaluators in the evaluation test is 5. The electrical stimulation device 1 is used for this evaluation test. Each evaluator wears the belt 10 of the electrical stimulation device 1 and receives electrical stimulation based on eight types of electrical stimulation patterns at the target site, and feels that the muscles around the waist are firmed and the muscles around the waist are trained. evaluated.

FIG. 13 shows the test results of the evaluation test. The arrows in FIG. 13 indicate that the output of one electrode and the output of the other electrode are alternately switched, and the dots in FIG. 13 indicate the electrode that outputs current first.

The evaluation tests with test numbers 1 to 4 were performed when the evaluator was walking. In the electrical stimulation pattern executed in test number 1, when the control unit 60 detects that the flank muscle of the right half is extended by the detection unit 40, the first front electrode 21 and the third front electrode 23 are detected. Thus, the output of the front electrode 20 was controlled so that electrical stimulation was applied to the flank muscles. In addition, when the detection unit 40 detects that the left abdominal abdominal muscles are extended, the control unit 60 applies electrical stimulation to the lateral abdominal muscles by the second front electrode 22 and the fourth front electrode 24. Thus, the output of the front electrode 20 was controlled.

The electrical stimulation pattern executed in test number 2 is the first walking operation mode. The electrical stimulation pattern executed in test number 3 is the second walking operation mode. The electrical stimulation pattern executed in test number 4 is the third walking operation mode.

The evaluation tests with test numbers 5 to 8 are performed when the evaluator is stationary. In the electrical stimulation pattern executed in test number 5, the control unit 60 switches the front electrode so that the period during which current is output from the front electrode 20 and the period during which output of current from the front electrode 20 is stopped are switched at predetermined time intervals. 20 outputs were controlled. In the electrical stimulation pattern executed in test number 6, the control unit 60 uses the back electrode so that the period in which the current is output from the back electrode 30 and the period in which the output of current from the back electrode 30 is stopped are switched at predetermined time intervals. 30 outputs were controlled.

In the electrical stimulation pattern executed in test number 7, the control unit 60 has a predetermined period of time for outputting current from the front electrode 20 and the back electrode 30 and a period for stopping output of current from the front electrode 20 and the back electrode 30. The outputs of the front electrode 20 and the back electrode 30 were controlled so as to be switched every time. In the electrical stimulation pattern executed in test number 8, the control unit 60 outputs a current from the front electrode 20, stops the current output from the back electrode 30, and stops outputting the current from the front electrode 20, The front electrode 20 and the back electrode 30 were controlled so that the period during which the current was output from the electrode 30 was switched every predetermined time. An example of the predetermined time in the test numbers 5 to 8 is 3 seconds.

The result of the load reduction evaluation is an average value of the evaluation results of five evaluators who evaluated the sense that the muscles around the waist are solidified. The result of the training evaluation is an average value of the evaluation results of five evaluators who evaluated the sense that the muscles around the waist are trained. Each evaluator has a sense that the muscles around the waist are solidified and the muscles around the waist are trained, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4. Evaluation was made with a score of 9 levels of 0, 4.5, and 5.0. The evaluation score is 1.0 being the weakest and 5.0 being the strongest.

Next, the results of the evaluation test will be described.

In the electrical stimulation patterns of test numbers 1, 5, 6, and 8, the load reduction evaluation score is less than 3.0, so it is estimated that the sense of firming the muscles around the waist is weak. On the other hand, in the electrical stimulation patterns of Test Nos. 2 to 4 and 7, the load reduction evaluation score is 3.0 or more, so it is estimated that the sense of firming the muscles around the waist becomes stronger. For this reason, in the electrical stimulation patterns of test numbers 2 to 4 and 7, it can be confirmed that the burden on the waist is reduced. Furthermore, in the electrical stimulation patterns of test numbers 2, 4, and 7, the load reduction evaluation score is 4.0 or more, so it is estimated that the sense that the muscles around the waist are firmed becomes stronger. For this reason, in the electrical stimulation patterns of test numbers 2, 4, and 7, it can be confirmed that the burden on the waist is further reduced.

In the electrical stimulation pattern of Test No. 6, the score of training evaluation is less than 3.0, so it is estimated that the sense of training the muscles around the waist is weak. On the other hand, in the electrical stimulation patterns of Test Nos. 1 to 5, 7, and 8, the training evaluation score is 3.0 or more, so it is presumed that the sense of strengthening the muscles around the waist is strengthened. For this reason, it can be confirmed that the electrical stimulation patterns of test numbers 1 to 5, 7, and 8 enhance the muscle training effect of the waist. Furthermore, in the electrical stimulation patterns of Test Nos. 2 to 4 and 7, the training evaluation score is 4.0 or more, so it is estimated that the sense of strengthening the muscles around the waist is further enhanced. For this reason, it can be confirmed that the electrical stimulation patterns of Test Nos. 2 to 4 and 7 further enhance the training effect of the muscles around the waist.

The operation of the electrical stimulation device 1 will be described with reference to FIGS.

The electrical stimulation device 1 is used by the user 100 as follows, for example. First, the apex 14A of the position adjusting unit 14 is assigned to the center of the waist, and the wearing position of the belt 10 on the body is adjusted. Next, the belt 10 is worn around the waist so that the front electrode 20 and the back electrode 30 are attached to the target part. Next, the power switch 71 is operated, and the power supply of the electrical stimulation device 1 is switched from OFF to ON. Next, the mode selection unit 72 is operated, and then an operation mode corresponding to an operation formed by the user 100 is selected. Then, the user 100 forms an operation corresponding to the operation mode selected by the mode selection unit 72.

The angular velocity of the waist is detected by the detection unit 40 as the user 100 moves. The control unit 60 controls the outputs of the front electrode 20 and the back electrode 30 based on the detection result of the detection unit 40 and the selected operation mode. For this reason, electrical stimulation is given from the front electrode 20 and the back electrode 30 to the abdominal muscles and back muscles that are target sites.

When the flank muscle contracts due to electrical stimulation, the abdominal pressure is increased by the contracted muscle. Further, when the back muscles contract due to electrical stimulation, the waist posture is maintained by the contracted muscles. That is, by applying electrical stimulation to the target part of the body, the rigidity of the waist is increased and the posture of the waist is stabilized. For this reason, according to the electrical stimulation apparatus 1, the burden placed on the waist when electrical stimulation is applied to the target part of the body is reduced.

According to the first embodiment, the following effects can be further obtained.

(1) According to the test, when there is an overlapping period between the period in which electrical stimulation is applied to the flank muscles and the period in which electrical stimulation is applied to the back muscles, the sense that the muscles around the hips are solidified becomes stronger. confirmed. According to the electrical stimulation device 1, a part or all of the period in which electrical stimulation is applied to the abdominal muscles by the front electrode 20 and the period in which electrical stimulation is applied to the back muscles by the back electrode 30 are overlapped. Since the outputs of the front electrode 20 and the back electrode 30 are controlled, the burden on the waist is further reduced.

(2) Tests confirm that when the outputs of the front electrode 20 and the back electrode 30 are controlled so that the first period and the second period alternate, the sense of firming the muscles around the waist is further strengthened. It was done. According to the electrical stimulation device 1, when any one of the first walking operation mode, the first traveling operation mode, and the first torsion operation mode is executed, the front electrode 20 and the back electrode 30 are as described above. Is controlled, the burden on the waist is further reduced.

Moreover, when the output of the front electrode 20 and the back electrode 30 is controlled so that the first period and the second period are alternately switched, it is confirmed by a test that the sensation of muscles around the waist is further strengthened. It was. For this reason, any one of the first walking operation mode, the first running operation mode, and the first torsion operation mode is executed in the electrical stimulation device 1, thereby further improving the muscle training effect on the waist. Enhanced.

(3) When the outputs of the front electrode 20 and the back electrode 30 are controlled so that the third period and the fourth period are alternately switched, it has been confirmed by a test that the sense that the muscles around the waist are solidified becomes stronger. It was. According to the electrical stimulation device 1, when any one of the second walking operation mode, the second traveling operation mode, and the second torsion operation mode is executed, the front electrode 20 and the back electrode 30 are as described above. Is controlled, the burden on the waist is further reduced.

In addition, when the outputs of the front electrode 20 and the back electrode 30 are controlled so that the third period and the fourth period are alternately switched, it has been confirmed by a test that the sense that the muscles around the waist are trained becomes stronger. It was. For this reason, the electrical stimulation apparatus 1 executes any one of the second walking operation mode, the second running operation mode, and the second torsion operation mode, thereby further improving the muscle training effect around the waist. Enhanced.

(4) A period in which electrical stimulation is applied to the flank muscles by the first front electrode 21 and the third front electrode 23, and electrical stimulation is applied to the flank muscles by the second front electrode 22 and the fourth front electrode 24. When the front electrode 20 and the back electrode 30 are controlled so as to alternate with the given period in a predetermined period, it has been confirmed by a test that the sense that the muscles around the waist are firmed becomes stronger. According to the electrical stimulation device 1, when any one of the third walking operation mode, the third traveling operation mode, and the third torsion operation mode is executed, the front electrode 20 and the back electrode 30 are as described above. Is controlled, the burden on the waist is further reduced.

In addition, the electrical stimulation is applied to the lateral abdominal muscles by the second front electrode 22 and the fourth front electrode 24 while the electrical stimulation is applied to the lateral abdominal muscles by the first front electrode 21 and the third front electrode 23. When the front electrode 20 and the back electrode 30 are controlled so that the period during which they are applied are alternately switched in a predetermined period, it has been confirmed by tests that the sense that the muscles around the waist are trained becomes stronger. For this reason, the electrical stimulation apparatus 1 executes any one of the third walking operation mode, the third running operation mode, and the third torsion operation mode, thereby further improving the muscle training effect around the waist. Enhanced.

(5) The front electrode 20 and the back electrode 30 so that the period in which current is output from the front electrode 20 and the back electrode 30 and the period in which output of current from the front electrode 20 and back electrode 30 is stopped are switched at predetermined intervals. It was confirmed by tests that the sense of firming up the muscles around the hips became stronger when the output of the control was controlled. According to the electrical stimulation device 1, when either the first bending operation mode or the second bending operation mode is executed, the front electrode 20 and the back electrode 30 are controlled as described above, and thus the burden on the waist Is further reduced.

In addition, the front electrode 20 and the back electrode 30 are switched so that a period in which current is output from the front electrode 20 and the back electrode 30 and a period in which output of current from the front electrode 20 and the back electrode 30 is stopped are switched every predetermined time. Tests have confirmed that when the output is controlled, the muscles around the waist are more strongly trained. For this reason, the training effect of the muscles around the waist is further enhanced by executing either the first bending operation mode or the second bending operation mode in the electrical stimulation device 1.

(6) According to the electrical stimulation device 1, when one of the first bending operation mode and the second bending operation mode is executed, the front electrode 20 is in a period in which the value of the angular velocity is included in a predetermined range. In addition, current is output to the back electrode 30. The posture of the user 100 when the value of the angular velocity is included in a predetermined range is often formed in daily life. For this reason, the burden placed on the waist is reduced in daily life.

(7) When the waist moves, the target part including the flank and back muscles also moves. According to the electrical stimulation device 1, the current output from the front electrode 20 and the back electrode 30 is controlled based on the information about the waist motion included in the detection result of the detection unit 40, so that it corresponds to the motion of the target part. Electrical stimulation is easily applied to the target site.

(8) It is known that when the leg of the user 100 lands in walking motion, the burden on the waist is large. On the other hand, according to the third walking operation mode, since the back electrode 30 is electrically stimulated by the back electrode 30 at the timing when the walking phase of each leg shifts from the swing phase to the stance phase, the rigidity of the waist is increased. , Waist posture is stable. For this reason, in the third walking operation mode, the burden on the waist is easily reduced.

(Second Embodiment)
The electrical stimulation device 1 of the second embodiment is different from the electrical stimulation device 1 of the first embodiment in the points described below, and is substantially different from the electrical stimulation device 1 of the first embodiment in other points. The same configuration is provided. In the description of the electrical stimulation device 1 of the second embodiment, the same reference numerals are given to the same components as those of the electrical stimulation device 1 of the first embodiment, and a part or all of the description of the configuration is omitted. To do.

As shown in FIG. 14, the electrical stimulation device 1 includes an auxiliary mechanism 110. The function of the auxiliary mechanism 110 is to move the body. The auxiliary mechanism 110 includes a chair 111 and a motor (not shown). The function of the chair 111 is to support the body. The form of the chair 111 is a swivel chair. The chair 111 includes a seat 111A and a rotation support shaft 111B. The seat 111A is supported by the rotation support shaft 111B. The rotation support shaft 111B is an axis extending in the height direction of the chair 111, and is coaxial with the rotation center of the seat 111A. The motor is provided inside the chair 111, and its output shaft is connected to the rotation support shaft 111B via a plurality of gears. The motor is controlled by, for example, the control unit 60 (see FIG. 4).

The electrical stimulation apparatus 1 according to the second embodiment includes a detection unit 120 instead of or in addition to the detection unit 40 according to the first embodiment. The function of the detection unit 120 is to detect the movement of the chair 111 and to output a signal reflecting the detection result to the control unit 60. An example of the detection unit 120 is an angular velocity sensor. The detection unit 120 is attached to the rotation support shaft 111B, for example. That is, the detection unit 120 detects the angular velocity of the chair 111 having a correlation with the body motion of the user 100 sitting on the chair 111. In one example, the angular velocity around the first axis that is an axis along the height direction of the human body is detected by the detection unit 120.

The control unit 60 is connected to the detection unit 120 by radio, for example. The control unit 60 controls the current output from the front electrode 20 and the back electrode 30 based on information related to the motion of the chair 111 that reflects the motion of the body included in the detection result of the detection unit 120. In one example, the control unit 60 controls the motor of the chair 111 when the mode selection unit 72 selects any of the first torsional operation mode, the second torsional operation mode, and the third torsional operation mode. The seat 111A is rotated, and the outputs of the front electrode 20 and the back electrode 30 are controlled based on the selected operation mode and the detection result of the detection unit 120.

The operation of the electrical stimulation device 1 will be described with reference to FIG.

The electrical stimulation device 1 is used by the user 100 as follows, for example. First, the apex 14A of the position adjusting unit 14 is assigned to the center of the waist, and the wearing position of the belt 10 on the body is adjusted. Next, the belt 10 is worn around the waist so that the front electrode 20 and the back electrode 30 are attached to the target part. Next, the user 100 sits on the chair 111 of the auxiliary mechanism 110. Next, the power switch 71 is operated, and the power supply of the electrical stimulation device 1 is switched from OFF to ON. When the mode selection unit 72 selects any one of the first torsional operation mode, the second torsional operation mode, and the third torsional operation mode, the chair 111 reciprocates within a predetermined range. Rotate around an axis.

The angular velocity of the chair 111 is detected by the detection unit 120 as the chair 111 moves. The control unit 60 controls the outputs of the front electrode 20 and the back electrode 30 based on the detection result of the detection unit 120 and the selected operation mode. For this reason, electrical stimulation is given from the front electrode 20 and the back electrode 30 to the abdominal muscles and back muscles that are target sites.

According to the second embodiment, the following effects can be further obtained.

(9) If the operation of the user 100 using the electrical stimulation device is not stable, appropriate electrical stimulation may not be given to the target site. On the other hand, according to the electrical stimulation device 1, the movement of the body is determined by the auxiliary mechanism 110, so that the movement of the user 100 is easily stabilized. For this reason, appropriate electrical stimulation is easily given to the target site. According to the electrical stimulation device 1 of the second embodiment, substantially the same operations and effects as the operations obtained by the first embodiment and the effects (1) to (8) can be obtained.

(Third embodiment)
The electrical stimulation device 1 of the third embodiment is different from the electrical stimulation device 1 of the first embodiment in the points described below, and is substantially different from the electrical stimulation device 1 of the first embodiment in other points. The same configuration is provided. In the description of the electrical stimulation device 1 of the third embodiment, the same reference numerals are given to the same components as those of the electrical stimulation device 1 of the first embodiment, and a part or all of the description of the configuration is omitted. To do.

FIG. 15 shows the electrical connection relationship of the electrical stimulation device 1. The electrical stimulation device 1 further includes an upper electrode 130. The function of the upper electrode 130 is to apply electrical stimulation to the oblique muscle, which is another example of the target site. The oblique oblique lines include at least one of anterior oblique oblique muscles, intermediate oblique oblique muscles, and rear oblique oblique muscles. The upper electrode 130 is provided separately from the belt 10 (see FIG. 1), for example. The upper electrode 130 is electrically connected to the control unit 60 via a cord 90 (see FIG. 1) or another cord.

The electrical stimulation device 1 according to the third embodiment includes a detection unit 140 instead of the detection unit 40 according to the first embodiment. The function of the detection unit 140 is to detect a body motion and output a signal reflecting the detection result to the control unit 60. An example of the detection unit 140 is a displacement meter. The detection unit 140 is provided on the inner surface of the belt 10, for example. In one example, the detection unit 140 is provided in a portion corresponding to the abdomen when the belt 10 is worn on the body, and detects expansion or contraction of the abdomen. That is, the detection unit 140 detects a breathing motion having a correlation with the body motion. The reference value indicating that the displacement meter is 0 is set by operating the operation unit 70 or the like.

The control unit 60 is electrically connected to the detection unit 140 via the cord 90, for example. The control unit 60 controls the current output from the front electrode 20, the back electrode 30, and the upper electrode 130 based on information related to the breathing operation included in the detection result of the detection unit 140.

The operation modes that can be selected by the mode selection unit 72 are, for example, the first walking operation mode to the third walking operation mode, the first traveling operation mode to the third traveling operation mode, and the first torsion operation mode to the first operation mode. Instead of the 3 torsional operation modes, a breathing operation mode is included. The breathing operation mode is executed in a stationary state, for example. The control unit 60 controls the current output from the front electrode 20, the back electrode 30, and the upper electrode 130 based on the operation mode selected by the mode selection unit 72 and the detection result of the detection unit 140. In one example, the control unit 60 controls the outputs of the front electrode 20 and the upper electrode 130 so that the front electrode 20 applies electrical stimulation to the flank muscles when the detection unit 140 detects that the flank muscles are extended. To do. When the detection unit 140 detects that the oblique muscle is extended, the upper electrode 130 controls the outputs of the front electrode 20 and the upper electrode 130 so as to apply electrical stimulation to the oblique muscle.

Referring to FIG. 16, an example of a current output form in the breathing operation mode will be described.

(A) of FIG. 16 shows the respiration phase in respiration operation. One cycle of the breathing movement is divided into two breathing phases, that is, an inspiration period and an expiration period. The inspiration period is a period during which inspiration is taken. The exhalation period is a period when exhaling.

(B) of FIG. 16 shows the movement state of the muscle of the target part. When the respiratory phase is the inspiratory phase, the flank muscles extend and the oblique muscles contract. When the respiratory phase changes from the inspiratory phase to the expiratory phase, the flank muscles are most stretched in the respiratory motion and the oblique muscles are most contracted in the respiratory motion. In this case, the oblique muscle acts as the main muscle and the flank muscle acts as the antagonist muscle.

When the respiratory phase is the expiration phase, the flank muscles contract and the oblique muscles extend. When the respiratory phase changes from the expiratory phase to the inspiratory phase, the flank muscles are most contracted in the respiratory motion and the oblique muscles are most extended in the respiratory motion. In this case, the flank muscle acts as the main muscle and the oblique muscle acts as the antagonist muscle.

(C) of FIG. 16 shows the value of the displacement meter obtained from the detection result of the detection unit 140.

When the user 100 using the electrical stimulation device 1 forms a breathing motion, the abdomen is inflated or contracted by the detection unit 140. In one example, the value of the displacement meter changes in the positive direction when the abdomen is inflated, and the value of the displacement meter changes in the negative direction when the abdomen is contracted. The control unit 60 controls the current output from the front electrode 20, the back electrode 30, and the upper electrode 130 based on the operation mode selected by the mode selection unit 72 and the change in the value of the displacement meter.

(D) of FIG. 16 shows the output form of an electric current.

The control unit 60 outputs the current to the back electrode 30 by turning on the power supply of the electrical stimulation device 1 and executing the breathing operation mode before time t91. When the value of the displacement meter changes from the negative direction to the positive direction at time t91, the control unit 60 causes the front electrode 20 to output a current. When the value of the displacement meter changes in the positive direction, it is suggested that the flank muscles are extended as antagonistic muscles. Therefore, when the detection unit 140 detects that the flank muscle is extended, the control unit 60 outputs a current from the front electrode 20 so that electrical stimulation is applied to the flank muscle.

When the value of the displacement meter changes from the positive direction to the negative direction at time t92, the control unit 60 stops the output of the current from the front electrode 20 and causes the upper electrode 130 to output the current. When the value of the displacement meter changes in the negative direction, it is suggested that the oblique muscles are extended as antagonistic muscles. For this reason, when the detection unit 140 detects that the oblique muscle is extended, the control unit 60 outputs a current from the upper electrode 130 so that electrical stimulation is applied to the oblique muscle.

At time t93, when the value of the displacement meter changes from the negative direction to the positive direction, the control unit 60 stops the current output from the upper electrode 130 and causes the front electrode 20 to output the current. When the breathing operation mode is continued after time t93, the control unit 60 repeatedly executes the same processing as the processing executed from time t92 to time t93.

According to the third embodiment, the following effects can be obtained.

(10) By breathing, the target site including the flank and oblique muscles also operates. According to the electrical stimulation device 1, the current output from the front electrode 20, the back electrode 30, and the upper electrode 130 is controlled based on information related to the breathing operation included in the detection result of the detection unit 140, and thus the target site It is easy to apply electrical stimulation to the flank and oblique muscles according to the movement of the body. In addition, breathing is always performed in daily life. For this reason, it is difficult to limit the environment in which the electrical stimulation device 1 is used. In addition, according to the electrical stimulation apparatus 1 in 3rd Embodiment, the effect | action and effect substantially the same as the effect | action obtained by 1st Embodiment, and the effect of (1) and (6) are also acquired.

(Modification)
The description regarding each of the above embodiments is an example of the form that the electrical stimulation device according to the present invention can take, and is not intended to limit the form. In addition to the above-described embodiments, the electrical stimulation device according to the present invention may take a form in which, for example, the following modifications of the embodiments and combinations of at least two modifications not contradicting each other are combined.

The output form of the back electrode 30 in the breathing operation mode of the electrical stimulation device 1 in the third embodiment can be arbitrarily changed. In one example, the controller 60 does not output current from the back electrode 30 in the breathing operation mode. The electrical stimulation device 1 may take a form in which the back electrode 30 is omitted.

The output form of the front electrode 20 and the upper electrode 130 in the breathing operation mode of the electrical stimulation device 1 in the third embodiment can be arbitrarily changed. In one example, when the value of the displacement meter changes from the negative direction to the positive direction, the control unit 60 causes the upper electrode 130 to output a current, and when the value of the displacement meter changes from the positive direction to the negative direction, The controller 60 causes the front electrode 20 to output a current. For this reason, electrical stimulation is given to the flank and oblique muscles that serve as the main muscles.

The target site to which electrical stimulation can be applied by the upper electrode 130 of the electrical stimulation device 1 in the third embodiment can be arbitrarily changed. In one example, at least one of the sternocleidomastoid muscle, the diaphragm, and the external intercostal muscle is included in the target site instead of or in addition to the oblique muscle.

The electrical stimulation device 1 in the third embodiment can take a form in which one of the front electrode 20 and the upper electrode 130 is omitted.

-The form of the detection part 140 of the electrical stimulation apparatus 1 in 3rd Embodiment can be changed arbitrarily. In the first example, the detection unit 140 is a strain sensor. In the second example, the detection unit 140 is an expired gas analyzer.

The electrical stimulation device 1 according to the modification of the third embodiment further includes the detection unit 40 of the first embodiment. In this modification, the operation modes that can be selected by the mode selection unit 72 include the first walking operation mode to the third walking operation mode, the first traveling operation mode to the third traveling operation mode, and the first torsion operation. At least one of a mode to a third torsion operation mode, a first bending operation mode to a second bending operation mode, and a breathing operation mode is included.

In the electrical stimulation device 1 according to the modification of the third embodiment, the mode selection unit 72 is omitted from the operation unit 70. In this modification, for example, the breathing operation mode is automatically selected by turning on the power supply of the electrical stimulation device 1.

The form of the auxiliary mechanism 110 of the electrical stimulation apparatus 1 in the second embodiment can be arbitrarily changed. In the first example, the auxiliary mechanism 110 includes a balance ball and an air supply unit. For example, the air pressure of the balance ball is changed by the air supply unit. In the second example, the auxiliary mechanism 110 includes a stretch pole and a motor. The stretch pole rotates around an axis along the longitudinal direction when the motor is driven.

· The form of the detection unit 40 can be arbitrarily changed. In the first example, the detection unit 40 is an angle sensor such as a goniometer. In the second example, the detection unit 40 is an acceleration sensor. In the third example, the detection unit 40 is a load sensor.

· The attachment form of the front electrode 20 to the body can be arbitrarily changed. In the following modification, when the distance between the electrodes in the body height direction is wide, the width of the belt 10 is changed according to the distance, or another member to which the electrode can be attached is attached to the belt 10. It is done.

In the first modified example, as shown in FIG. 17, the first front electrode 21, the second front electrode 22, the third front electrode 23, and the fourth front electrode 24 avoid the rectus abdominis muscle. Affixed to the flank between the ribs and iliac. The flank muscles include transverse abdominal muscles, internal oblique muscles, and external oblique muscles. The longitudinal direction of the first front electrode 21 to the fourth front electrode 24 is along the height direction of the body. The distance between the application position of the first front electrode 21 and the application position of the second front electrode 22 in the left-right direction of the body is the same as the application position of the third front electrode 23 and the fourth front electrode 24 in the left-right direction of the body. It is wider than the distance from the pasting position.

In the second modification, the front electrode 20 includes a fifth front electrode 25 and a sixth front electrode 26 in addition to the first front electrode 21 to the fourth front electrode 24. For example, the fifth front electrode 25 is provided on the inner surface of the second portion 12. For example, the sixth front electrode 26 is provided on the inner surface of the third portion 13. As shown in FIG. 18, the first front electrode 21 to the sixth front electrode 26 are attached to the lateral abdominal muscles between the ribs and the iliac so as to avoid the rectus abdominis muscles. The flank muscles include transverse abdominal muscles, internal oblique muscles, and external oblique muscles. The longitudinal direction of the first front electrode 21 to the sixth front electrode 26 is along the longitudinal direction of the belt 10. The fifth front electrode 25 is attached between the first front electrode 21 and the third front electrode 23 in the body height direction. The sixth front electrode 26 is attached between the second front electrode 22 and the fourth front electrode 24 in the body height direction. The interval between the application position of the fifth front electrode 25 and the application position of the sixth front electrode 26 in the left-right direction of the body is the same as the application position of the first front electrode 21 and the second front electrode 22 in the left-right direction of the body. It is wider than the distance from the pasting position.

In the third modification, as shown in FIG. 19, the first front electrode 21 to the fourth front electrode 24 are attached to the rectus abdominis muscle. The longitudinal direction of the first front electrode 21 to the fourth front electrode 24 is along the longitudinal direction of the belt 10. According to the electrical stimulation device 1 in the third modified example, since the center of gravity moves to the back side of the body by applying electrical stimulation to the rectus abdominis muscle, the burden on the waist is reduced. In the third modification, one or more other front electrodes may be attached to the flank muscles. In the first to third modifications, the current output form by the front electrode 20 and the longitudinal direction of the front electrode 20 can be arbitrarily changed.

· The pasting form of the back electrode 30 to the body can be arbitrarily changed. In the following modification, when the distance between the electrodes in the body height direction is wide, the width of the belt 10 is changed according to the distance, or another member to which the electrode can be attached is attached to the belt 10. It is done.

In the first modification, as shown in FIG. 20, the first back electrode 31 and the second back electrode 32 are pasted on the spine between the ribs and the iliac so as to straddle the spine. The back muscle includes, for example, the lumbar multifidus. The longitudinal direction of the first back electrode 31 and the second back electrode 32 is along the longitudinal direction of the belt 10. The 1st back electrode 31 is affixed upwards rather than the 2nd back electrode 32 in the body height direction. In addition, according to the electrical stimulation apparatus 1 in the first modification, the third back electrode 33, the fourth back electrode 34, and the position adjustment unit 14 are omitted.

In the second modification, as shown in FIG. 21, the first back electrode 31 to the fourth back electrode 34 are attached to the back muscles near the ribs. The back muscle includes, for example, the spine standing muscle and the latissimus back muscle. The longitudinal direction of the first back electrode 31 to the fourth back electrode 34 is along the longitudinal direction of the belt 10.

In the third modification, as shown in FIG. 22, the first back electrode 31 to the fourth back electrode 34 are attached to the back muscles near the ribs. The back muscle includes, for example, the spine standing muscle and the latissimus back muscle. The longitudinal direction of the first back electrode 31 to the fourth back electrode 34 is along the longitudinal direction of the belt 10. The distance between the first back electrode 31 and the third back electrode 33 and the distance between the second back electrode 32 and the fourth back electrode 34 in the height direction of the body are the above-mentioned second modification (FIG. 21)).

In the fourth modified example, as shown in FIG. 23, the first back electrode 31 to the fourth back electrode 34 are attached to the gluteal muscle. The gluteal muscle includes, for example, the greater gluteal muscle. The longitudinal direction of the first back electrode 31 to the fourth back electrode 34 is along the longitudinal direction of the belt 10. According to the electrical stimulation device 1 in the fourth modification, electrical stimulation is applied to the gluteal muscle, which is another example of the target site, by the first back electrode 31 to the fourth back electrode 34. When the gluteal muscles contract by electrical stimulation, the contracted muscles increase the tension of the thoracolumbar fascia and increase the stability of the lumbar spine. In addition, since the sacral ligament is tense, the stability of the sacral joint is also increased. For this reason, according to the electrical stimulation apparatus 1 in the fourth modification, the burden on the waist is reduced.

In the fifth modification, as shown in FIG. 24, the first back electrode 31 to the fourth back electrode 34 are attached to the gluteal muscle. The gluteal muscle includes, for example, the greater gluteal muscle. The longitudinal direction of the first back electrode 31 to the fourth back electrode 34 is along the longitudinal direction of the belt 10. The distance between the application position of the first back electrode 31 and the application position of the second back electrode 32 in the left-right direction of the body is such that the position of application of the third back electrode 33 and the fourth back electrode 34 in the left-right direction of the body. It is wider than the distance from the pasting position. According to the electrical stimulation device 1 in the fifth modification, electrical stimulation is applied to the gluteal muscle, which is another example of the target site, by the first back electrode 31 to the fourth back electrode 34.

In the sixth modification, as shown in FIG. 25, the first back electrode 31 and the second back electrode 32 are affixed to the spine between the ribs and the iliac bones, and the third back electrode 33 is the ribs. It is pasted so as to straddle the spine in the nearby back muscles. The back muscles include, for example, lumbar multifidus, spine uprights, and latissimus backs. The longitudinal direction of the first back electrode 31 to the third back electrode 33 is along the longitudinal direction of the belt 10. The third back electrode 33 is attached above the first back electrode 31 and the second back electrode 32 in the body height direction. In this way, since the first back electrode 31 to the third back electrode 33 are attached on the spine of the body and on both sides thereof, the current output from the first back electrode 31 to the third back electrode 33 is Easy to flow into the nerve. For this reason, it is easy to reduce the burden on the waist. In addition, according to the electrical stimulation apparatus 1 in the sixth modified example, the fourth back electrode 34 and the position adjusting unit 14 are omitted.

In the seventh modification example, as shown in FIG. 26, the first back electrode 31 and the second back electrode 32 are attached to the back muscles, and the third back electrode 33 and the fourth back electrode 34 are the scissors muscles. Is pasted. The longitudinal direction of the first back electrode 31 to the fourth back electrode 34 is along the longitudinal direction of the belt 10. According to the electrical stimulation device 1 in the seventh modified example, electrical stimulation is applied to the back muscles and the gluteal muscles, which are examples of the target site, by the first back electrode 31 to the fourth back electrode 34. In the first to seventh modifications, the current output form by the back electrode 30 and the longitudinal direction of the back electrode 30 can be arbitrarily changed.

The operation modes that can be selected by the mode selection unit 72 of the modification further include at least one of a fourth walking operation mode and a fifth walking operation mode.

Referring to FIG. 27, an example of a current output form in the fourth walking operation mode will be described. FIG. 27A shows the leg walking phase in the walking motion. FIG. 27B shows the operating state of the flank muscles. (C) of FIG. 27 shows the value of the angular velocity obtained from the detection result of the detection unit 40. Since the contents related to (a) to (c) of FIG. 27 are substantially the same as the contents related to (a) to (c) of FIG. 5, a part or all of the description of the common matters is omitted.

Threshold values referred to in the fourth walking motion mode are, for example, the first threshold value TL1 and the second threshold value TL2. The first threshold value TL1 exists, for example, in a region where the angular velocity shows a positive value, and is set to detect the timing at which the right leg walking phase shifts from the swing phase to the stance phase. The second threshold TL2 is present, for example, in a region where the angular velocity shows a negative value, and is set to detect the timing at which the left leg walking phase shifts from the swing phase to the stance phase. The threshold values TL1 and TL2 are determined for each user 100 based on the detection result of the detection unit 40, for example. The threshold values TL1 and TL2 are set so that the value of the angular velocity at the timing when the walking phase of each leg shifts from the swing phase to the stance phase is included between the first threshold value TL1 and the second threshold value TL2. May be.

(D) of FIG. 27 shows a current output form.

When the value of the angular velocity changes from the magnitude greater than or equal to the first threshold TL1 to the magnitude less than the first threshold TL1 at time t101, the control unit 60 causes the first front electrode 21, the third front electrode 23, In addition, current is output to the back electrode 30. Time t101 is, for example, the time when the right leg walking phase shifts from the swing phase to the stance phase. When the value of the angular velocity changes from the magnitude greater than or equal to the second threshold TL2 to the magnitude less than the second threshold TL2 at time t102, the control unit 60 causes the first front electrode 21, the third front electrode 23, And the output of the current by the back electrode 30 is stopped.

When the value of the angular velocity changes from the magnitude less than the second threshold TL2 to the magnitude greater than or equal to the second threshold TL2 at time t103, the control unit 60 causes the second front electrode 22, the fourth front electrode 24, In addition, current is output to the back electrode 30. Time t103 is, for example, the time when the left leg walking phase shifts from the swing phase to the stance phase. When the value of the angular velocity changes from the magnitude less than the first threshold TL1 to the magnitude greater than or equal to the first threshold TL1 at time t104, the control unit 60 causes the second front electrode 22, the fourth front electrode 24, And the output of the current by the back electrode 30 is stopped. When the fourth walking motion mode is continued after time t104, the control unit 60 repeatedly executes the same processing as the processing executed from time t101 to time t104.

Referring to FIG. 28, an example of a current output form in the fifth walking operation mode will be described. (A) of FIG. 28 shows the leg walking phase in the walking motion. FIG. 28 (b) shows the operating state of the flank muscles. (C) of FIG. 28 shows the value of the angular velocity obtained from the detection result of the detection unit 40. The contents related to (a) to (c) in FIG. 28 are substantially the same as the contents related to (a) to (c) in FIG.

(D) of FIG. 28 shows a current output form. The fifth walking operation mode is obtained by applying the electrical stimulation pattern of test number 7 (see FIG. 13) to the walking operation mode.

At time t111, when the value of the angular velocity changes from a magnitude greater than or equal to the first threshold TL1 to a magnitude less than the first threshold TL1, the control unit 60 causes the front electrode 20 and the back electrode 30 to output current. Time t111 is, for example, the time when the right leg walking phase shifts from the swing phase to the stance phase. When the angular velocity value changes from the magnitude greater than or equal to the second threshold TL2 to the magnitude less than the second threshold TL2 at time t112, the control unit 60 stops the output of current from the front electrode 20 and the back electrode 30. .

At time t113, when the value of the angular velocity changes from the magnitude less than the second threshold TL2 to the magnitude greater than or equal to the second threshold TL2, the control unit 60 causes the front electrode 20 and the back electrode 30 to output current. Time t113 is, for example, the time when the left leg walking phase shifts from the swing phase to the stance phase. When the angular velocity value changes from the magnitude less than the first threshold TL1 to the magnitude greater than or equal to the first threshold TL1 at time t114, the control unit 60 stops the output of current from the front electrode 20 and the back electrode 30. . When the fifth walking operation mode is continued after time t114, the control unit 60 repeatedly executes the same processing as the processing executed from time t111 to time t114.

It is known that the burden placed on the waist is large when the legs of the user 100 land during walking. On the other hand, according to the fourth walking operation mode and the fifth walking operation mode, electrical stimulation is given to the corresponding target site at the timing when the walking phase of each leg shifts from the swing phase to the stance phase. For this reason, in the 4th walking operation mode and the 5th walking operation mode, the burden concerning a waist is easy to be reduced. The thresholds TL1 and TL2 may be set based on another detection unit. An example of another detection unit is an acceleration sensor or a pressure sensor.

The operation modes that can be selected by the mode selection unit 72 of the modification are the first walking operation mode to the third walking operation mode, the first traveling operation mode to the third traveling operation mode, and the first torsion operation mode. It can take a form in which at least one of the third torsional operation mode and the first bending operation mode to the second bending operation mode is omitted. When all the operation modes are omitted from the operation modes that can be selected by the mode selection unit 72, the electrical stimulation device 1 can take a form in which the mode selection unit 72 is omitted.

The electrical stimulation device 1 according to the modification can take a form in which the mode selection unit 72 is omitted. In one example, the electrical stimulation device 1 includes another detection unit that can determine at least one of walking motion, running motion, torsional motion, and bending motion. The control unit 60 controls the current output from the front electrode 20 and the back electrode 30 based on the detection results of the detection unit 40 and another detection unit.

The electrical stimulation device 1 according to the modification may take a form in which at least one of the belt 10, the position adjustment unit 14, the notification unit 80, and the cord 90 is omitted. When the belt 10 is omitted from the electrical stimulation device 1, the front electrode 20 and the back electrode 30 are individually attached to the body. When the cord 90 is omitted from the electrical stimulation device 1, the control unit 60, the detection unit 40, the front electrode 20, and the back electrode 30 are electrically connected wirelessly.

· Whether or not the front electrode 20 applies electrical stimulation to the antagonistic muscle can be arbitrarily changed. For example, when the detection unit 40 detects that the flank muscle of the right half is contracted, the control unit 60 applies electrical stimulation to the flank muscle by the first front electrode 21, and the detection unit 40 causes the left half body to When it is detected that the flank muscle is contracted, the second front electrode 22 applies electrical stimulation to the flank muscle. The same deformation is also established in the back electrode 30.

· The number of front electrodes 20 can be arbitrarily changed. In the first example, the number of front electrodes 20 is 1 or more and 3 or less. In the second example, the number of front electrodes 20 is five or more.

· The number of back electrodes 30 can be arbitrarily changed. In the first example, the number of back electrodes 30 is 1 or more and 3 or less. In the second example, the number of back electrodes 30 is five or more.

The electrical stimulation device 1 according to the modification includes one electrode instead of the front electrode 20 and the back electrode 30. The function of this electrode is to apply electrical stimulation to the target region of the body including the flank muscles and at least one of the back and gluteal muscles. That is, one electrode is provided so as to straddle at least one of the first portion 11, the second portion 12, and the third portion 13 of the inner surface of the belt 10.

(An example of the form that the electrical stimulator can take)
[1] One embodiment of the electrical stimulation device according to the present invention is configured to apply a current output from an electrode capable of applying electrical stimulation to a target site of the body including the flank muscle and at least one of the back muscle and the gluteal muscle. The control part which controls based on the detection result of the detection part which can detect this is provided.

When the flank muscle contracts due to electrical stimulation, the abdominal pressure is increased by the contracted muscle. When at least one of the back muscles and the gluteal muscles contracts by electrical stimulation, the waist posture is maintained by the contracted muscles. That is, by applying electrical stimulation to the target part of the body, the rigidity of the waist is increased and the posture of the waist is stabilized. For this reason, according to one form of this electrical stimulation apparatus, the burden placed on the waist when electrical stimulation is applied to the target region of the body is reduced.

[2] According to one embodiment of the electrical stimulation apparatus, the electrodes include a front electrode capable of applying electrical stimulation to the flank muscles and a back electrode capable of applying electrical stimulation to at least one of the back muscles and the gluteal muscles. In addition, the control unit overlaps part or all of the period in which electrical stimulation is applied to the flank muscles by the front electrode and the period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by the back electrode. Thus, the output of the front electrode and the back electrode may be controlled.

If there is a period during which electrical stimulation is applied to the flank muscles, and there is a period that overlaps with the period during which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles, the sensation that the muscles around the hips are firmed becomes stronger This was confirmed by the test. For this reason, according to the one aspect | mode of this electrical stimulation apparatus, the burden concerning a waist | wrist is further reduced.

[3] According to one aspect of the electrical stimulation device, the front electrode includes a first front electrode capable of applying electrical stimulation to the right half and a second front electrode capable of applying electrical stimulation to the left half. In addition, the control unit applies electrical stimulation to the flank muscles by at least one of the first front electrode and the second front electrode, and applies electrical stimulation to at least one of the back muscles and the gluteal muscles by the back electrode. You may control the output of a front electrode and a back electrode so that a part or all may overlap with the period which is carrying out.

According to one aspect of the electrical stimulation device, since various electrical stimulations are given to the target site as compared with the case where there is one front electrode, the electrical stimulation output from the plurality of front electrodes is applied to the body state and It can be flexibly provided to the user according to the movement of the body. In addition, when there is a period that overlaps the period in which electrical stimulation is applied to at least one of the flank muscles of the right and left body and the period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles, Tests confirmed that the muscles around the hips were strengthened. For this reason, according to the one aspect | mode of this electrical stimulation apparatus, the burden concerning a waist | wrist is further reduced.

[4] According to one aspect of the electrical stimulation device, the back electrode includes a first back electrode capable of applying electrical stimulation to the right half and a second back electrode capable of applying electrical stimulation to the left half. In addition, the control unit applies electrical stimulation to the abdominal muscles by the front electrode during a period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by at least one of the first back electrode and the second back electrode. You may control the output of a front electrode and a back electrode so that a part or all may overlap with the period which is carrying out.

According to one aspect of this electrical stimulation device, since various electrical stimulations are given to the target site compared to the case where there is a single back electrode, the electrical stimulation output from the plurality of back electrodes is applied to the body state and It can be flexibly provided to the user according to the movement of the body. In addition, when there is a period that overlaps the period in which electrical stimulation is applied to the flank muscles and the period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles of at least one of the right and left body, Tests confirmed that the muscles around the hips were strengthened. For this reason, according to the one aspect | mode of this electrical stimulation apparatus, the burden concerning a waist | wrist is further reduced.

[5] According to one aspect of the electrical stimulation device, electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by the period during which electrical stimulation is applied to the flank muscles by the first front electrode. The first period overlaps with a part or all of the period being set. Further, a part or all of a period in which electrical stimulation is applied to the flank muscles by the second front electrode and a period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by the second back electrode Have overlapping second periods. In addition, according to one aspect of the electrical stimulation device, the control unit may control the outputs of the front electrode and the back electrode so that the first period and the second period are alternately switched.

According to one aspect of the electrical stimulation apparatus, the outputs of the front electrode and the back electrode are controlled in this way, so that the body motion in which the muscles of the right and left body contract or stretch in the same manner, respectively. Is formed, the effect of training the muscles around the waist is likely to be enhanced. Further, it was confirmed by a test that when the first period and the second period are alternately switched, the sense that the muscles around the waist are solidified becomes stronger. For this reason, according to the one aspect | mode of this electrical stimulation apparatus, the burden concerning a waist | wrist is further reduced.

[6] According to one aspect of the electrical stimulation apparatus, electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by the period during which electrical stimulation is applied to the flank muscles by the first front electrode. A third period that partially or entirely overlaps with the period being set. Further, a part or all of a period in which electrical stimulation is applied to the flank muscles by the second front electrode and a period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by the first back electrode It has a fourth period that overlaps. In addition, according to one aspect of the electrical stimulation device, the control unit may control the outputs of the front electrode and the back electrode so that the third period and the fourth period are alternately switched.

It was confirmed by a test that when the third period and the fourth period are alternately switched, the sense that the muscles around the waist are solidified becomes stronger. For this reason, according to the one aspect | mode of this electrical stimulation apparatus, the burden concerning a waist | wrist is further reduced.

[7] According to one aspect of the electrical stimulation device, the control unit has a predetermined period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by both the first back electrode and the second back electrode. . In this predetermined period, the controller applies electrical stimulation to the flank muscles by one of the first front electrode and the second front electrode, and the flank muscles by the other of the first front electrode and the second front electrode. The output of the front electrode and the back electrode may be controlled so that electrical stimulation is not applied to the electrode.

In this predetermined period, when one of the first front electrode and the second front electrode applied electrical stimulation to the flank muscles, it was confirmed by a test that the sense of firming the muscles around the waist became stronger. For this reason, according to the one aspect | mode of this electrical stimulation apparatus, the burden concerning a waist | wrist is further reduced.

[8] According to one aspect of the electrical stimulation device, the control unit has a predetermined period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by both the first back electrode and the second back electrode. . In this predetermined period, the control unit alternately switches the electrode that applies electrical stimulation to the flank muscles and the electrode that does not apply electrical stimulation to the flank muscles of the first front electrode and the second front electrode. The output of the front electrode may be controlled.

In this predetermined period, when the period in which electrical stimulation is applied to the right half by the first front electrode and the period in which electrical stimulation is applied to the left half by the second front electrode are alternately switched, the muscles around the waist are solidified. The test confirmed that the perceived sensation was stronger. For this reason, according to the one aspect | mode of this electrical stimulation apparatus, the burden concerning a waist is further reduced.

[9] According to one aspect of the electrical stimulation device, the control unit applies electrical stimulation to the lateral abdominal muscles by the first front electrode when the detection unit detects that the flank muscles of the right half are extended. When the detection unit detects that the left abdominal abdominal muscles are extended, electrical stimulation may be applied to the flank muscles by the second front electrode.

When an electrical stimulus is applied to a stretched muscle, the muscle is contracted by the electrical stimulus during the extension, so that the load on the muscle increases. For this reason, the training effect of the muscle is enhanced. For this reason, according to the one aspect | mode of this electrical stimulation apparatus, the training effect of a flank muscle is heightened.

[10] According to one aspect of the electrical stimulation device, the control unit may control the output of the electrode based on information on the waist motion included in the detection result of the detection unit.

When the waist moves, the target site including the flank muscles and at least one of the back and gluteal muscles also moves. For this reason, according to one aspect of the electrical stimulation device, electrical stimulation according to the operation of the target part is easily given to the target part.

[11] According to one aspect of the electrical stimulation device, the detection unit detects the operation of the auxiliary mechanism that moves the body, and the control unit reflects the operation of the body that is included in the detection result of the detection unit. The output of the electrode may be controlled based on the information regarding.

If the user's operation using the electrical stimulation device is not stable, appropriate electrical stimulation may not be given to the target site. On the other hand, according to one aspect of the electrical stimulation device, the movement of the body is determined by the auxiliary mechanism, so that the movement of the user is easily stabilized. For this reason, appropriate electrical stimulation is easily given to the target site.

[12] According to one aspect of the electrical stimulation device, the control unit may control the output of the electrode based on information on the breathing operation included in the detection result of the detection unit.

¡The abdominal muscles also move when breathing. For this reason, according to one aspect of the electrical stimulation device, electrical stimulation according to the operation of the flank muscles is easily given to the flank muscles. In one example, by applying electrical stimulation to the extending flank muscle, the load on the flank muscle is increased, so that the training effect of the flank muscle is enhanced. In addition, breathing is always performed in daily life. For this reason, it is difficult to limit the environment in which the electrical stimulation device is used.

The electrical stimulation device according to the present invention can be used for training each part of the body including the flank and back muscles.

DESCRIPTION OF SYMBOLS 1 Electrical stimulator 10 Belt 11 1st part 12 2nd part 13 3rd part 14 Position adjustment part 14A Apex 20 Front electrode 21 1st front electrode 22 2nd front electrode 23 3rd front electrode 24 3rd 4 front electrode 25 5th front electrode 26 6th front electrode 30 back electrode 31 1st back electrode 32 2nd back electrode 33 3rd back electrode 34 4th back electrode 40,120,140 detection part 50 controller 51 power supply unit 60 control unit 70 operation unit 71 power switch 72 mode selection unit 80 notification unit 90 code 100 user 110 auxiliary mechanism 111 chair 111A seat 111B rotation support shaft 130 upper electrode

Claims (17)

1. A current output from an electrode capable of applying electrical stimulation to a target region of the body including the flank muscle and at least one of the back muscle and the gluteal muscle is controlled based on the detection result of the detection unit capable of detecting the movement of the body. An electrical stimulation device including a control unit.
2. The electrode includes a front electrode capable of applying electrical stimulation to the flank muscles, and a back electrode capable of applying electrical stimulation to at least one of the back muscles and the gluteal muscles,
   The control unit overlaps part or all of the period in which electrical stimulation is applied to the flank muscles by the front electrode and the period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by the back electrode. The electrical stimulation apparatus according to claim 1, wherein outputs of the front electrode and the back electrode are controlled as described above.
3. The front electrode includes a first front electrode capable of applying electrical stimulation to the right half and a second front electrode capable of applying electrical stimulation to the left half;
   The controller applies electrical stimulation to the flank muscles by at least one of the first front electrode and the second front electrode, and applies electrical stimulation to at least one of the back muscles and the gluteal muscles by the back electrode. The electrical stimulation apparatus according to claim 2, wherein outputs of the front electrode and the back electrode are controlled so that a part or all of the period is overlapped.
4. The back electrode includes a first back electrode capable of applying electrical stimulation to the right half and a second back electrode capable of applying electrical stimulation to the left half;
   The control unit applies electrical stimulation to at least one of the back muscles and the gluteal muscles by at least one of the first back electrode and the second back electrode, and provides electrical stimulation to the lateral abdominal muscles by the front electrode. The electrical stimulation apparatus according to claim 2, wherein outputs of the front electrode and the back electrode are controlled so that a part or all of the period is overlapped.
5. The front electrode includes a first front electrode capable of applying electrical stimulation to the right half and a second front electrode capable of applying electrical stimulation to the left half;
   The back electrode includes a first back electrode capable of applying electrical stimulation to the right half and a second back electrode capable of applying electrical stimulation to the left half;
   The control unit includes a period in which electrical stimulation is applied to the flank muscle by at least one of the first front electrode and the second front electrode, and at least one of the first back electrode and the second back electrode. The electrical stimulation apparatus according to claim 2, wherein the output of the front electrode and the back electrode is controlled so that a part or all of the period overlaps with a period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles.
6. The control unit includes a period in which electrical stimulation is applied to the flank muscles by the first front electrode and a period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by the first back electrode. Electrical stimulation to at least one of back muscles and gluteal muscles by the second back electrode, and a first period in which a part or all overlap, a period in which electrical stimulation is applied to the flank muscles by the second front electrode The electrical stimulation apparatus according to claim 5, wherein the outputs of the front electrode and the back electrode are controlled so that a second period in which a part or all of the period is overlapped alternately.
7. The controller includes a period in which electrical stimulation is applied to the flank muscles by the first front electrode and a period in which electrical stimulation is applied to at least one of the back muscles and the gluteal muscles by the second back electrode. Electrical stimulation to at least one of back muscles and gluteal muscles by the first back electrode, and a third period in which a part or all overlap, a period in which electrical stimulation is applied to the flank muscles by the second front electrode The electrical stimulation device according to claim 5, wherein the outputs of the front electrode and the back electrode are controlled so that a fourth period, in which a part or all of the period with the period is applied, is alternately switched.
8. The control unit applies the electrical stimulation to at least one of the back muscles and the gluteal muscles by both the first back electrode and the second back electrode, and the first front electrode and the second back electrode in a predetermined period. Of the front electrode and the back electrode so that electrical stimulation is applied to the lateral abdominal muscles by one of the front electrodes, and electrical stimulation is not applied to the lateral abdominal muscles by the other of the first front electrode and the second front electrode The electrical stimulation apparatus according to claim 5.
9. In the predetermined period, the control unit alternately switches an electrode that applies electrical stimulation to the flank muscles and an electrode that does not apply electrical stimulation to the flank muscles of the first front electrode and the second front electrode. The electrical stimulation apparatus according to claim 8, wherein the output of the front electrode is controlled.
10. When the detection unit detects that the flank muscles of the right half are extended, the control unit applies electrical stimulation to the flank muscles by the first front electrode, The electrical stimulation device according to claim 5, wherein when it is detected that the abdominal muscles are extended, electrical stimulation is applied to the lateral abdominal muscles by the second front electrode.
11. When the detection unit detects that the flank muscles of the right half are extended, the control unit applies electrical stimulation to the flank muscles by the first front electrode, The electrical stimulation device according to claim 6, wherein when it is detected that the abdominal muscles are extended, electrical stimulation is applied to the lateral abdominal muscles by the second front electrode.
12. When the detection unit detects that the flank muscles of the right half are extended, the control unit applies electrical stimulation to the flank muscles by the first front electrode, The electrical stimulation device according to claim 7, wherein when it is detected that the abdominal muscles are extended, electrical stimulation is applied to the flank muscles by the second front electrode.
13. When the detection unit detects that the flank muscles of the right half are extended, the control unit applies electrical stimulation to the flank muscles by the first front electrode, The electrical stimulation device according to claim 8, wherein when it is detected that the abdominal muscles are extended, electrical stimulation is applied to the lateral abdominal muscles by the second front electrode.
14. When the detection unit detects that the flank muscles of the right half are extended, the control unit applies electrical stimulation to the flank muscles by the first front electrode, The electrical stimulation device according to claim 9, wherein when it is detected that the abdominal muscles are extended, electrical stimulation is applied to the flank muscles by the second front electrode.
15. The electrical stimulation device according to any one of claims 1 to 14, wherein the control unit controls the output of the electrode based on information relating to a waist motion included in a detection result of the detection unit.
16. The detection unit detects an operation of an auxiliary mechanism that operates the body,
    The control unit controls the output of the electrode based on information on the operation of the auxiliary mechanism that reflects the motion of the body included in the detection result of the detection unit. Electrical stimulator.
17. The electrical stimulation device according to any one of claims 1 to 14, wherein the control unit controls the output of the electrode based on information on a breathing operation included in a detection result of the detection unit.

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