WO2022209599A1 - 筋肉電気刺激プログラム及び電気刺激装置 - Google Patents
筋肉電気刺激プログラム及び電気刺激装置 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/025—Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36003—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of motor muscles, e.g. for walking assistance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/0404—Electrodes for external use
- A61N1/0408—Use-related aspects
- A61N1/0452—Specially adapted for transcutaneous muscle stimulation [TMS]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/0404—Electrodes for external use
- A61N1/0472—Structure-related aspects
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/0404—Electrodes for external use
- A61N1/0472—Structure-related aspects
- A61N1/0476—Array electrodes (including any electrode arrangement with more than one electrode for at least one of the polarities)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
- A61N1/36034—Control systems specified by the stimulation parameters
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/002—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices isometric or isokinetic, i.e. substantial force variation without substantial muscle motion or wherein the speed of the motion is independent of the force applied by the user
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
Definitions
- the present disclosure relates to an electrical stimulator for applying electrical stimulation to a user.
- Patent Document 1 discloses an electrical stimulator that includes an electrode group that applies electrical stimulation to both legs of a user. By applying electrical stimulation to both legs using this electrical stimulator, it is possible to promote exercise accompanied by muscle contraction and relaxation.
- One of the purposes of the present disclosure is to provide a technique that can diversify the bodily sensations that can be imparted to the user using an electrical stimulator.
- the program of the present disclosure is a program for applying electrical stimulation to muscles, and a computer of an electrical stimulator comprising a signal application unit that applies a voltage signal to an electrode group, by controlling the signal application unit, As the voltage signal, a function of repeatedly applying a plurality of pulse waveform groups to the electrode group is executed, and the plurality of pulse waveform groups are intermittently applied for each first cycle corresponding to a frequency of 15 Hz to 25 Hz.
- a muscle electrical stimulation program comprising a first pulse waveform group and a second pulse waveform group applied outside the application period of the first pulse waveform group in the first cycle.
- the electrical stimulation device of the present disclosure includes an electrode group that applies electrical stimulation to a user, a signal application section that applies a voltage signal to the electrode group, and a control section that executes the muscle electrical stimulation program described above.
- FIG. 3A is an explanatory diagram showing a state in which the left leg EMS waveform group is applied to the electrode group
- FIG. 3B is an explanatory diagram showing a state in which the right leg EMS waveform group is applied to the electrode group.
- FIG. 4 is a waveform diagram showing a left leg EMS waveform group and a right leg EMS waveform group
- FIG. 4 is a waveform diagram of a first pulse waveform group and a second pulse waveform group
- FIG. 4 is a waveform diagram showing a first pulse waveform group and a second pulse waveform group
- FIG. 4 is a waveform diagram of a pulse waveform group;
- FIG. 4 is a waveform diagram of EMS waveforms applied in skip mode; It is a graph which shows the result of the muscle-fatigue measurement performed before and after using walking mode. It is a graph which shows the result of the gastrocnemius muscle strength measurement performed before and after the test period regarding walking mode.
- 10 is a graph showing the results of walking speed measurements performed before and after the test period for walking mode.
- FIG. 10 is a graph showing the results of a two-step test performed before and after the test period for walking mode;
- FIG. 3 is a block diagram showing functions of the remote controller of the embodiment;
- FIG. 3 is a block diagram showing functions of the remote controller of the embodiment;
- An electrical stimulation system 12 using the electrical stimulation device 10 includes, in addition to the electrical stimulation device 10, a remote controller 14 for operating the electrical stimulation device 10 (hereinafter also referred to as a remote control 14). Details of the remote controller 14 will be described later.
- FIG. 1 is also a top view of the electrical stimulation device 10.
- the electrical stimulation device 10 includes an electrode group 16 for applying electrical stimulation to both legs of a user, and a main body 18 on which the electrode group 16 is mounted.
- the main body 18 is used while placed on the floor F.
- a pair of footrests 20L and 20R for placing the left and right feet of the user is provided on the upper surface of the main body 18 .
- the pair of footrests 20L, 20R includes a left footrest 20L for placing the left foot LF and a right footrest 20R for placing the right foot RF.
- the footrests 20L, 20R comprise a front portion 22 for placing the toe portion of the user's foot and a rear portion 24 for placing the heel portion of the foot.
- a plurality of device operation sections 26A and 26B for operating the electrical stimulation device 10 are provided on the upper surface of the main body 18.
- the device operation units 26A and 26B are, for example, buttons that are pressed by the user.
- Device operation sections 26A and 26B of the present embodiment include a first level operation section 26A for increasing the set level of electrical stimulation given to the user and a second level operation section 26B for decreasing the set level.
- a plurality of grounding portions 30A to 30C are provided on the lower surface of the main body 18 at intervals in the front-rear direction.
- a plurality of ground contact portions 30A to 30C are provided on the front side of the main body 18, a rear ground contact portion 30B provided on the rear side, and between the front contact portion 30A and the rear contact portion 30B. and an intermediate ground portion 30C.
- the main body 18 can be swung back and forth along with rotation about the left-right direction axis in a state where the intermediate ground contact portion 30C is grounded.
- the electrode group 16 includes a plurality of electrodes 32L, 32R for applying electrical stimulation to both legs of the user.
- a plurality of electrodes 32L and 32R are individually provided corresponding to the left and right legs.
- the plurality of electrodes 32L, 32R includes a left electrode 32L corresponding to the left leg LL and a right electrode 32R corresponding to the right leg RL.
- a plurality of electrodes 32L, 32R are used in contact with corresponding legs LL, RL of the user.
- the left electrode 32L and the right electrode 32R of this embodiment respectively constitute a pair of footrests 20L and 20R. Specifically, the left electrode 32L constitutes the left footrest portion 20L, and the right electrode 32R constitutes the right footrest portion 20R.
- the electrode group 16 When the electrodes 32L and 32R constituting the electrode group 16 are in contact with the legs LL and RL, the electrode group 16 includes a left leg conduction path 34L and a right leg RL for applying electrical stimulation to the left leg LF.
- a right leg conducting path 34R for applying electrical stimulation to the right leg can be formed.
- the electrode group 16 of the present embodiment can form a both leg energization path 36 including a left leg energization path 34L and a right leg energization path 34R.
- the left leg conduction path 34L includes at least part of the left leg LL.
- the left leg energization path 34L includes the sole, lower leg, and upper leg of the left leg LF in this embodiment.
- the right leg conduction path 34R includes at least part of the right leg RL.
- the right leg energization path 34R includes the sole, lower leg, and upper leg of the right leg RL in this embodiment.
- the legs energization path 36 includes the left leg energization path 34L, the right leg energization path 34R, and the crotch.
- each block shown in the block diagram of this specification is a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory) and other electronic components, circuits, and mechanical devices. etc., and in terms of software, it is realized by a computer program or the like.
- the functional blocks realized by these linkages are drawn. It should be understood by those skilled in the art that these functional blocks can be implemented in various forms by combining hardware and software.
- the electrical stimulation device 10 controls the device power supply 40, the signal application unit 42 that applies a voltage signal to the electrode group 16, and the electrical stimulation device 10. and a device control unit 44 (control device).
- the device power supply 40 is housed in the main body 18.
- the device power supply 40 of this embodiment is a primary battery such as a manganese battery.
- the device power supply 40 may also be a rechargeable secondary battery such as a lithium ion battery.
- the device power supply 40 supplies power to the signal applying section 42, the device control section 44, and the like.
- the signal application unit 42 is configured using a pulse width modulation circuit or the like.
- the device control unit 44 functions as a computer of the electrical stimulation device 10.
- the device control unit 44 includes a device storage unit 46 that stores various information regarding the electrical stimulation device 10 .
- the device control unit 44 executes a program stored in the device storage unit 46 to execute processing for realizing functions of the device control unit 44 (an operation control unit 48, a current control unit 98, etc., which will be described later).
- the device control unit 44 includes an operation control unit 48 that performs an electrical stimulation operation for applying electrical stimulation by controlling the signal application unit 42 .
- the electrical stimulation operation is performed by the signal applying unit 42 applying an EMS (Electrical Muscle Stimulation) waveform group for applying electrical stimulation to the electrode group 16 as a voltage signal.
- EMS Electro Mechanical Muscle Stimulation
- the functions of the operation control unit 48 described below are exhibited by executing a muscle electrical stimulation program for applying electrical stimulation to muscles.
- the vertical axis in FIG. 5 indicates the voltage level.
- the EMS waveform group includes a left leg EMS waveform group 50L for applying electrical stimulation to the left leg LL and a right leg EMS waveform group 50R for applying electrical stimulation to the right leg RL.
- EMS waveform group 50 is for applying electrical stimulation corresponding to a walking motion for one step.
- the device storage unit 46 stores waveform information that stores parameters related to the EMS waveform group 50 (periods Ta1, Ta2, Tb, period Tf, period Tg, pulse output time Ti1, etc., which will be described later). Waveform information is stored in the form of a table or the like.
- the operation control unit 48 reads the waveform information stored in the device storage unit 46, and controls the signal application unit 42 based on the read waveform information to generate EMS waveform groups 50L and 50R having various waveforms. It is possible.
- the operation control section 48 can use the signal applying section 42 to execute an alternate stimulation mode in which the left leg EMS waveform group 50L and the right leg EMS waveform group 50R are alternately applied to the electrode group 16.
- the alternate stimulation mode By executing the alternate stimulation mode, the stimulation current having the left leg EMS waveform group 50L and the stimulation current having the right leg EMS waveform group 50R are alternately output from the electrode group 16 .
- FIG. 3(A) shows a state in which a stimulation current having the EMS waveform group 50L for the left leg is output from the electrode group 16
- FIG. 3(B) shows a stimulation current having the EMS waveform group 50R for the right leg.
- the state of output from the electrode group 16 is shown.
- an arrow Da indicates the direction in which the stimulation current is applied.
- the operation control unit 48 causes the electrodes 32L and 32R to be applied with different polarities according to the EMS waveform groups 50L and 50R to be applied.
- a perceptible level of electrical stimulation can be applied to only one of the right legs RL. Details will be described below.
- the intensity of the electrical stimulation is the strongest at the input point of the stimulation current with the EMS waveform groups 50L and 50R, and sharply weakens away from there. Therefore, when applying electrical stimulation to the left leg LL, it is necessary to make the left electrode 32L the input point of the stimulation current. Therefore, the operation control unit 48 applies the left leg EMS waveform group 50L so that the left electrode 32L, which is the application destination, has a positive polarity and the right electrode 32R has a negative polarity. As a result, a stimulation current having the left leg EMS waveform group 50L is passed from the left electrode 32L toward the right electrode 32R in the both legs conduction path 36 (see FIG. 3A).
- a perceptible level of electrical stimulation can be applied to the left leg LL near the left electrode 32L, without applying a perceptible level of electrical stimulation to the right leg RL.
- a perceptible level of electrical stimulation is applied to the sole of the left leg LL on which the left electrode 32L contacts.
- the operation control unit 48 applies the right leg EMS waveform group 50R so that the right electrode 32R, which is the application destination, has a positive polarity and the left electrode 32L has a negative polarity.
- a stimulation current having the right leg EMS waveform group 50R is passed from the right electrode 32R toward the left electrode 32L in the both legs conduction path 36 (see FIG. 3B).
- a perceptible level of electrical stimulation can be applied to the right leg RL near the right electrode 32R, and a perceptible level of electrical stimulation is not applied to the left leg LL.
- the right electrode 32R constitutes the right footrest 20R, a perceptible level of electrical stimulation is applied to the sole of the right leg RL on which the right electrode 32R contacts.
- the operation control unit 48 of the present embodiment applies the left leg EMS waveform group 50L and the right leg EMS waveform group 50R in the stimulation application period Ta1.
- the stimulus application period Ta1 of the present embodiment consists of a plurality of continuous block periods Tb.
- the figure shows a stimulation application period Ta1 consisting of three consecutive block periods Tb.
- the operation control unit 48 alternately applies the left leg EMS waveform group 50L and the right leg EMS waveform group 50R with a stimulation pause period Ta2 in which the applied voltage is zero.
- the walking pace can be adjusted by changing the time lengths of the stimulus application period Ta1 and stimulus pause period Ta2. For example, the longer the stimulus application period Ta1 and the stimulus pause period Ta2, the slower the walking pace of the walking motion can be reproduced. On the other hand, the shorter these time lengths are, the faster the walking pace can be reproduced. In alternately applying the left leg EMS waveform group 50L and the right leg EMS waveform group 50R, it is not essential to interpose the stimulation pause period Ta2 between the stimulation application periods Ta1.
- FIG. 6 shows part of the EMS waveform group 50 in one block period Tb of FIG.
- the EMS waveform group 50 is composed of a plurality of pulse waveform groups 52 that are repeatedly applied to the electrode group 16 .
- the EMS waveform group 50 will include a plurality of pulse waveform groups 52 that are applied repeatedly.
- FIG. 7 shows a portion of the pulse waveform group 52 of FIG.
- the application period Tc of the pulse waveform group 52 consists of a pulse continuation period Td1 during which the pulse train 54 is continuously applied and a pulse pause period Td2 during which the pulse train 54 is not applied.
- the pulse train 54 is composed of a plurality of pulse signals 56 having the same polarity and having a predetermined number of pulses applied for each predetermined pulse period Te.
- the pulse voltage (voltage level) of the pulse signal 56 has a magnitude set by an input operation to the device operation sections 26A and 26B.
- a very short period is set for the pulse duration period Td1 and the pulse period Te.
- the pulse train 54 output during the pulse duration Td1 is recognized as one electrical stimulation.
- the time length of the pulse pause period Td2 is longer than the time length of the pulse continuation period Td1 in order to reduce the user's pain due to electrical stimulation.
- FIG. 7 shows an example in which the pulse duration Td1 is 2.1 ms, the pulse pause period Td2 is 14.7 ms, the pulse period Te is 700 ⁇ s, and the number of pulses is 3.
- the plurality of pulse waveform groups 52 include a first pulse waveform group 52A that is intermittently applied every first period Tf, and a second pulse waveform group 52A that is applied outside the application period Tc of the first pulse waveform group 52A in the first period Tf. pulse waveform group 52B.
- the term "outside the application period Tc of the first pulse waveform group 52A" as used herein refers to a period Th obtained by subtracting the application period Tc of the first pulse waveform group from the first period Tf.
- FIG. 6 shows an example in which one first pulse waveform group 52A and two second pulse waveform groups 52B are included in the first cycle Tf.
- the first pulse waveform group 52A and the second pulse waveform group 52B have the same application period Tc, pulse continuation period Td1, pulse pause period Td2, and pulse period Te.
- the pulse waveform group 52 of this embodiment is repeatedly applied every second period Tg shorter than the first period Tf within the same first period Tf.
- One part of the second period Tg in the first period Tf becomes the application period Tc of the first pulse waveform group 52A, and the remaining part of the second period Tg in the first period becomes the application period Tc of the second pulse waveform group 52B.
- the second period Tg is a time length obtained by equally dividing the first period Tf by N+1, where N is the number of the second pulse waveform groups 52B in the first period Tf.
- the first pulse waveform group 52A is mainly used to encourage incomplete tetanus to muscles.
- the first cycle Tf is set in the range of 40 ms to 66 ms corresponding to the frequency of 15 Hz to 25 Hz that can induce incomplete tetanus in the muscles.
- the frequency corresponding to the first period Tf is preferably 18 Hz to 23 Hz, more preferably 19 Hz to 21 Hz.
- the operation control section 48 applies the second pulse waveform group 52B between the consecutive first pulse waveform groups 52A. Thereby, continuous electrical stimulation can be given to the user compared to the case where only the first pulse waveform group 52A is applied every first cycle Tf. When such a pulse waveform group 52 is applied to the leg, it is possible to reproduce the sensation of continuously stepping on the ground.
- pulse waveform here refers to the waveform of the pulse signal 56 in the pulse train 54 .
- the pulse output time Ti1 (see FIG. 7) of each pulse signal 56 of the first pulse waveform group 52A longer than the pulse output time Ti1 of each pulse signal 56 of the second pulse waveform group 52B, the first pulse The bodily sensation imparted by waveform group 52A can be enhanced.
- This is synonymous with making the duty ratio of the pulse signal 56 of the first pulse waveform group 52A larger than the duty ratio of the pulse signal 56 of the second pulse waveform group 52B (the ratio of the pulse output time Ti1 to the pulse period Te). be.
- the stimulus application period Ta1 includes a plurality of block periods Tb
- at least one block period Tb should satisfy the condition regarding the pulse output time Ti1.
- the pulse waveform group 52 is applied at each frequency exceeding 25 Hz.
- muscle fatigue can be moderately suppressed while giving the sensation of continuously stepping on the ground.
- the pulse output time Ti1 of the first pulse waveform group 52A is set longer than the pulse output time Ti1 of the second pulse waveform group 52B, and the pulse output time of the first pulse waveform group 52A is The voltage may be higher than the pulse voltage of the second pulse waveform group 52B.
- Each of the plurality of block periods Tb differs in at least one of the pulse waveform of the pulse waveform group 52 applied in the block period Tb and the time length of the block period Tb.
- the pulse output time Ti1 of the first pulse waveform group 52A is gradually increased as the subsequent block period Tb approaches, the intensity of electrical stimulation given to the user can be gradually increased.
- the pulse output time Ti1 of the first pulse waveform group 52A is gradually reduced as the subsequent block period Tb approaches, the intensity of the electrical stimulation given to the user can be gradually reduced.
- by increasing or decreasing the time length of each block period Tb it is possible to increase or decrease the length of experience corresponding to each block period Tb.
- the strength of the electrical stimulation given to the user can be changed in stages, and the variety of bodily sensations given to the user can be realized.
- the first period Tf and the second period Tg of each pulse waveform group 52 have a common time length.
- the operation control unit 48 starts executing the following operation modes when a predetermined start condition is satisfied.
- the start condition is, for example, receiving a predetermined input operation to the electrical stimulator 10 and the remote controller 14 .
- the operation control unit 48 may individually execute at least the operation modes described below, or may execute each operation mode in sequence.
- Table 1 shows the time table for various operating modes using alternating stimulation mode.
- Ti2 in Table 1 is the pulse-off period in the pulse period Te (see also FIG. 7).
- the walking mode is a mode that reproduces a normal walking motion.
- walking modes include a slow walking mode, a walking mode, and a fast walking mode.
- the walking pace imparted as a bodily sensation is changed.
- the total time of the stimulus application period Ta1 and stimulus pause period Ta2 is gradually shortened in the order of slow walking mode, walking mode, and fast walking mode. This indicates that the walking pace imparted as a bodily sensation increases in the order of the slow walking mode, the walking mode, and the fast walking mode.
- the pulse output time Ti1 of the first pulse waveform group 52A is decreased in the order of the first block period Tb and the second block period Tb, thereby weakening the electrical stimulation stepwise. This reproduces the motion in which the stimulus applied to the foot becomes weaker as the ground contact area increases during walking motion.
- the stepping mode is a mode that reproduces stepping.
- a first stepping mode, a second stepping mode, and a third stepping mode are shown.
- the stimulus applying period Ta1 is shorter than in the walking mode in order to give the sensation of stepping rhythmically with light steps.
- the stepping pace given as a bodily sensation is changed.
- the total time of the stimulus application period Ta1 and stimulus pause period Ta2 is gradually shortened in the order of the first stepping mode, the second stepping mode, and the third stepping mode. This indicates that the stepping pace given as a bodily sensation increases in the order of the first stepping mode, the second stepping mode, and the third stepping mode.
- the climb mode is a mode that reproduces the walking motion when going up the stairs.
- the stimulus application period Ta1 consists of three block periods Tb.
- the pulse output time Ti1 of the first pulse waveform group 52A is increased in order of the first block period Tb, the second block period Tb, and the third block period Tb. This means that the electrical stimulation applied as bodily sensation is gradually increasing in the ascending mode. This is because when climbing stairs, when one foot touches the ground, the weight is on both feet, so the stimulus on one foot is weak, and when the other foot is kicked off the ground, the entire weight is on one foot. It reproduces the state where the stimulus is getting stronger.
- Down mode is a mode that reproduces the walking motion when going down stairs.
- the stimulus application period Ta1 consists of three block periods Tb.
- the pulse output time Ti1 of the first pulse waveform group 52A is decreased in order of the first block period Tb, the second block period Tb, and the third block period Tb. This means that the electrical stimulation applied as bodily sensation is gradually weakened in the descending mode. This recreates the fact that when going down a flight of stairs, the stimulus is strong when one foot lands on the ground with the body weight on it, and after a while the stimulus is weakened as the load is distributed over the entire foot. ing.
- the cow walking mode is a mode that reproduces slow and powerful walking movements.
- the stimulus application period Ta1 in the cow walking mode consists of five block periods Tb.
- the pulse output time Ti1 of the first pulse waveform group 52A is gradually increased from the first block period Tb to the fourth block period Tb and decreased in the fifth block period Tb.
- the stimulus application period Ta1 is longer than in the walking mode. This means that in the cow-walking mode, the electric stimulation applied as bodily sensation gradually increases slowly and then weakens suddenly. This reproduces the movement of slowly lifting the foot off the ground while gradually increasing the force of stepping on the ground.
- Skip mode is a mode that reproduces the skip operation.
- a plurality of intermittent left leg EMS waveform groups 50L and a plurality of intermittent right leg EMS waveform groups 50R are alternately applied to the electrode group 16 .
- a plurality of EMS waveform groups 50L and 50R for both left and right legs are composed of a first EMS waveform group 50A corresponding to the first walking motion and a second EMS waveform corresponding to the second step walking motion using the same legs as the first step walking motion. and group 50B.
- Table 2 shows a timetable for the first EMS waveform group 50A and the second EMS waveform group 50B applied in skip mode.
- the plurality of pulse waveform groups 52 include a first pulse waveform group 52A that is intermittently applied every first period Tf corresponding to a frequency of 15 Hz to 25 Hz, and an application period of the first pulse waveform group 52A in the first period Tf. and a second pulse waveform group 52B applied to the outside. Therefore, by changing the pulse waveforms of the first pulse waveform group 52A and the second pulse waveform group 52B, it is possible to easily vary the sensation that can be imparted to the user, as described above. As a result, it is possible to diversify the bodily sensations that can be imparted to the user.
- the pulse signal of the first pulse waveform group 52A of 15 Hz to 25 Hz has a pulse output time Ti1 or pulse voltage greater than the pulse signal 56 of the second pulse waveform group 52B.
- the electrical stimulation device 10 includes an operation control section 48 that alternately applies the left leg EMS waveform group 50L and the right leg EMS waveform group 50R to the electrode group 16 by controlling the signal application section 42 .
- the left leg EMS waveform group 50L and the right leg EMS waveform group 50R are alternately output from the electrode group 16, thereby providing the user with an unprecedented feeling of walking. can. In other words, it is possible to give the user a feeling that is difficult to get tired of. As a result, it becomes easier to encourage continued use of the electrical stimulation device 10 .
- the subjects were 6 males and 6 females, with an age range of 68.58 ⁇ 3.53 years old.
- the voltage level (pulse voltage) of the electrical stimulator 10 was set to the maximum level that the subject could endure.
- Walking mode is foot mode (3 minutes) ⁇ pause mode (30 seconds) ⁇ bull walking mode (3 minutes) ⁇ walking mode (3 minutes) ⁇ rest mode (30 seconds) ⁇ ascending mode (3 minutes) ⁇ descending mode ( 3 minutes) ⁇ Skip mode (3 minutes) ⁇ Pause mode (1 minute) for a total of 20 minutes.
- the stepping mode here was performed in order of the first stepping mode (1 minute), the second stepping mode (1 minute), and the third stepping mode (1 minute).
- Pause mode is a mode in which the application of the EMS waveform group is paused.
- the muscle fatigue measurement In order to evaluate the subject's muscle fatigue using the electrical stimulation device 10, it was decided to perform the muscle fatigue measurement described below.
- the muscle strength of the subject was measured using a simple muscle strength measuring device (manufactured by Anima, Mutus F-1).
- the muscle strength immediately before using the electrical stimulation device 10 and the muscle strength immediately after using the electrical stimulation device 10 were measured.
- the muscle strength immediately after use of the electrical stimulator 10 the muscle strength immediately after use in the walking mode and the muscle strength immediately after use in the training mode were individually measured.
- the muscle strength immediately before use of the electrical stimulator 10 is set to 100, and the ratio of the muscle strength immediately after use to the muscle strength before use is shown.
- the muscle strength was reduced by about 10% on average compared to before the walking mode was used.
- the degree of decrease in muscle strength is smaller than when training mode is used. This proves that the walking mode has a lighter exercise load than the training mode, which is aimed at muscle hypertrophy, and is suitable for maintaining muscle mass.
- the test subjects were asked to use the walking mode once a day for a total of 20 minutes during the test period of 4 weeks in total.
- the gastrocnemius muscle strength measurement the subject's muscle strength was measured using a simple muscle strength measuring device (manufactured by Anima, Mutus F-1). In this muscle fatigue measurement, muscle strength immediately before the test period and muscle strength immediately after the test period were measured.
- the walking speed measurement the time required to walk 5 m at normal walking speed and the time required to walk 5 m at maximum walking speed were measured using a stopwatch.
- the normal walking speed is the walking speed at which the subject normally walks
- the maximum walking speed is the speed at which the subject walks as fast as possible without running.
- the muscle strength immediately before the test period is set to 100, and the ratio of the muscle strength immediately after the test period to the muscle strength immediately before the test period is shown.
- muscle strength increased by 4.7% on average compared to immediately before the test period.
- a scenario is assumed in which multiple users use individual electrical stimulators 10 at the same time. This may be accomplished, for example, in gyms, nursing homes, rehab rooms, and the like. In this case, the remote controller 14 of one user may mistakenly operate the electrical stimulator 10 of another user.
- the version of the command data is usually switched by a switching operation such as sliding a slide switch provided on the remote control 14 or the electrical stimulation device 10 or simultaneously pressing a plurality of buttons.
- a switching operation such as sliding a slide switch provided on the remote control 14 or the electrical stimulation device 10 or simultaneously pressing a plurality of buttons.
- the number of versions that can be switched by such a switching operation is about two or three at most. Therefore, it is not suitable for use in situations where more users use the electrical stimulator 10 at the same time.
- the remote control 14 includes a remote control power supply 80, a plurality of remote control operation units 82A to 82E for receiving input operations by a user, a remote control control unit 84 for controlling the remote control 14, and a transmission unit 86 capable of transmitting transmission signals using infrared rays or the like. , and a remote control storage unit 88 .
- the remote control power supply 80 is housed in the housing of the remote control 14.
- a remote control power supply 80 is a primary battery, a secondary battery, or the like.
- a remote control power supply 80 supplies power to a remote control control section 84, a transmission section 86, and the like.
- a plurality of remote control operation sections 82A to 82E include a power supply operation section 82A for turning the power on and off, a menu operation section 82B for selecting a mode, level operation sections 82C and 82D for changing the setting level, and an electric power supply. and a switching operation part 82E for pausing or replaying the operation of the stimulation device 10 .
- the level operation sections 82C and 82D include a first level operation section 82C for raising the set level and a second level operation section 82D for lowering the set level.
- the remote controller storage unit 88 stores identification information unique to the remote controller 14 .
- the identification information is a serial code or the like.
- the identification information is composed of, for example, random numbers generated by a random number generator incorporated in the remote controller 14 .
- a random number generator generates a random number of a predetermined number of bits (for example, 16 bits).
- the identification information may be written to the remote controller storage unit 88 through an input operation on the remote controller operation unit.
- the remote controller control unit 84 generates command data according to input operations to the remote controller operation units 82A to 82E. Command data is for instructing the operation of the electrical stimulator 10 .
- the remote control unit 84 transmits a transmission signal including the generated command data to the electrical stimulation device 10 through the transmission unit 86 .
- the electrical stimulation device 10 includes a receiver 92 that receives the transmission signal transmitted from the transmitter 86 of the remote controller 14 .
- the receiving unit 92 receives transmission signals that have passed through a receiving window 94 (see FIG. 1) provided in the main body 18 .
- the device control unit 44 of the electrical stimulation device 10 includes a registration unit 96 that registers identification information of the remote control 14 paired with the electrical stimulation device 10 in the device storage unit 46 .
- the registration unit 96 executes registration processing (pairing processing) for registering the remote control 14 when a predetermined registration processing start condition is satisfied.
- a condition for starting the registration process is to perform a predetermined input operation on the device operation units 26A and 26B of the electrical stimulation device 10 and the remote control operation units 82A to 82E of the remote control 14.
- An input operation to the remote controller 14 is, for example, to simultaneously press the power operation unit 82A and the menu operation unit 82B of the remote controller 14, that is, input operations to a plurality of remote control operation units 82A to 82E at the same time. This prevents a situation in which the registration process is erroneously executed while the remote control 14 is being used.
- input operation with respect to the electrical stimulation apparatus 10 is pushing 26 A of level operation parts of the electrical stimulation apparatus 10, for example
- the remote controller control unit 84 of the remote controller 14 When an input operation for registration processing is performed on the remote controller 14, the remote controller control unit 84 of the remote controller 14 generates a processing code for the registration processing and transmits it from the transmission unit 86. Identification information unique to the remote controller 14 stored in the remote controller storage unit 88 of the remote controller 14 is added to the processing code.
- the registration unit 96 When receiving a processing code transmitted from the remote controller 14 by the receiving unit 92 of the electrical stimulation device 10 under the state of performing an input operation for registration processing on the electrical stimulation device 10, the registration unit 96 adds to the processing code This identification information is registered in the device storage section 46 as identification information unique to the remote controller 14 . This completes the registration process.
- the remote controller control unit 84 of the remote controller 14 When transmitting a transmission signal including command data, the remote controller control unit 84 of the remote controller 14 adds identification information stored in the remote controller storage unit 88 to the command data.
- Command data is defined according to a predetermined format, and identification information is stored at a predetermined position within the format. Only when command data to which identification information corresponding to the registered remote control 14 is added in the device storage unit 46 is received, the operation control unit 48 of the electrical stimulation device 10 performs an operation according to the command data.
- the operation control unit 48 of the electrical stimulation device 10 performs an operation according to the command data.
- an operation corresponding to the command data is executed.
- the remote controller control unit 84 of the remote controller 14 may transmit a repeat command to which the identification information stored in the remote controller storage unit 88 is added.
- a repeat command may not be used to repeat a predetermined operation.
- identification information may be added to the command corresponding to the action to be repeated, and the command to which the identification information is added may be repeatedly transmitted.
- the device power supply 40 When a commercial power supply is used as the device power supply 40, it is possible to supply power all the time. On the other hand, when a battery is used as the device power supply 40, if the receiving unit 92 of the electrical stimulation device 10 is maintained in a state of being able to receive signals at all times, the battery is consumed greatly when the electrical stimulation device 10 is not in use. As a result, there is a problem that the actual usable time of the electrical stimulator 10 is shortened.
- the device controller 44 of the electrical stimulation device 10 includes a current controller 98 that controls the current supplied to the receiver 92 .
- the current control unit 98 causes the receiving unit 92 to perform an intermittent receiving mode in which the receiving unit 92 is intermittently maintained in a receivable standby state, and a constant receiving mode in which the receiving unit 92 is constantly maintained in a receivable standby state. be able to.
- the current control unit 98 can cause the receiving unit 92 to perform the intermittent reception mode by intermittently supplying the receiving unit 92 with a current of a predetermined set value. Further, the current control unit 98 can cause the receiving unit 92 to execute the constant reception mode by constantly supplying the receiving unit 92 with a current of a predetermined set value.
- the current control section 98 When in the intermittent reception mode, the current control section 98 intermittently supplies a current of a set value to the reception section 92 only for a predetermined reception period (eg, 2 ms) every predetermined intermittent period (eg, 200 ms). do. In the intermittent reception mode, the current control section 98 limits the magnitude of the current supplied to the reception section 92 to a limit value smaller than the set value outside the reception period, thereby suppressing power consumption.
- a predetermined reception period eg, 2 ms
- predetermined intermittent period eg, 200 ms
- the current control section 98 In the intermittent reception mode, the current control section 98 extends the reception period during which the reception section 92 can receive the transmission signal when the reception section 92 receives the transmission signal.
- the current control section 98 shifts from the intermittent reception mode to the constant reception mode.
- This predetermined command is, for example, a power-on command for turning on the device power source 40 of the electrical stimulation device 10 .
- the current control section 98 limits the current supplied to the receiving section 92 to the limit value or less when receiving other transmission signals during the extended reception period, and continues the intermittent reception mode. .
- the current control unit 98 When the current control unit 98 is in the constant reception mode and satisfies a predetermined termination condition (for example, a predetermined time has elapsed since the reception of the transmission signal is terminated), the current control unit 98 shifts from the constant reception mode to the intermittent reception mode. do.
- a predetermined termination condition for example, a predetermined time has elapsed since the reception of the transmission signal is terminated
- the current control section 98 can reduce power consumption by the reception section 92 compared to the case where the reception section 92 is maintained in the constant reception mode.
- the transmission unit 86 of the remote controller 14 transmits a predetermined repetition number (for example, 6) so that the predetermined transmission period and the transmission interval period alternate. Send a signal repeatedly.
- a predetermined repetition number for example, 6
- the current control unit 98 may ignore the second and subsequent transmission signals.
- continuous reception means that the interval period between the previously received transmission signal and the newly received transmission signal is the aforementioned transmission interval period ⁇ .
- the electrode group 16 is not particularly limited as long as it can apply electrical stimulation to both legs LL and RL of the user by forming at least the left leg energization path 34L and the right leg energization path 34R.
- the right electrode 32R and the left electrode 32L of the electrode group 16 may be provided, for example, on a fixture such as a belt that is separate from the main body 18 having the footrests 20L and 20R.
- the fixture for the left leg LL and the main body 18 may be individually provided with the left electrode 32L
- the fixture for the right leg RL and the main body 18 may be provided with the right electrode 32R individually.
- the electrode group 16 can form the both-leg energization path 36 including the left-leg energization path 34L and the right-leg energization path 34R.
- the electrode group 16 may form separate left leg conducting paths 34L and right leg conducting paths 34R. This is based on the assumption that a plurality of left electrodes 32L form a left leg conduction path 34L and a plurality of right electrodes 32R form a right leg conduction path 34R. More specifically, this is the case where the left electrode 32L and the right electrode 32R are provided on the left and right fixtures and the main body 18 described above.
- the motion control unit 48 applies electrical stimulation at a perceptible level to only one of the left leg LL and the right leg RL. Therefore, the combination of the electrodes 32L and 32R to be applied may be changed according to the EMS waveform groups 50L and 50R to be applied. Specifically, when the left leg EMS waveform group 50L is applied, the operation control unit 48 may apply only to the plurality of left electrodes 32L forming the left leg conduction path 34L.
- the stimulation current having the left leg EMS waveform group 50L is applied only to the left leg conduction path 34L, and electric stimulation of a perceptible level is applied only to the left leg LL.
- the operation control section 48 may apply only to the plurality of right electrodes 32R forming the right leg conduction path 34R.
- the stimulation current having the right leg EMS waveform group 50R is applied only to the right leg energization path 34R, and electrical stimulation of a perceptible level is applied only to the right leg RL.
- the motion control unit 48 changes either the polarity of the electrodes 32L, 32R to be applied or the combination of the electrodes 32L, 32R to be applied according to the EMS waveform groups 50L, 50R to be applied. It can be said that a perceptible level of electric stimulation can be applied only to either the LL or the right leg RL.
- the specific waveforms of the EMS waveform groups 50L and 50R are not limited to the contents of the embodiment.
- the EMS waveform groups 50L and 50R may consist of only one of the first pulse waveform group 52A and the second pulse waveform group 52B.
- the second pulse waveform group 52B needs only to be applied outside the application period Tc (period Th) of the first pulse waveform group 52A in the first period Tf, and must be output every second period Tg. does not become
- a pause period may be interposed between the application period Tc of the first pulse waveform group 52A and the application period Tc of the second pulse waveform group 52B.
- the number of block periods Tb provided in the EMS waveform group 50 is not particularly limited.
- the number of block periods Tb may be singular or six or more.
- the subject to which electrical stimulation is applied by the EMS waveform group 50 is the leg, but the specific example is not particularly limited.
- the object to which electrical stimulation is applied may be the abdomen, both arms, etc., in addition to the legs.
- the target of electrical stimulation may be a part of the body.
- the electrode group 16 only needs to be able to form an energization path in the target (a part of the body) to which electrical stimulation is applied, and the specific example is not limited to the embodiment.
- the electric stimulator 10 does not necessarily have to be used in combination with the remote control 14.
- the electrostimulation device 10 may be operable only by input operations on the device operation sections 26A and 26B. In order to realize this, by changing the operation time for the device operation units 26A and 26B or the combination of the device operation units 26A and 26B that are the target of the input operation, the same operation as the remote control operation units 82A to 82E of the remote control 14 can be performed.
- input operation may be realized. For example, an input operation similar to that of the power supply operation unit 82A of the remote controller 14 may be realized by pressing the device operation unit 26A for a predetermined threshold time or longer (hereinafter referred to as a long-press operation).
- an input operation similar to that of the menu operation section 82B of the remote control 14 may be realized by performing a long press operation on the device operation section 26B.
- an input operation similar to that of the switching operation unit 82E of the remote controller 14 may be realized by simultaneously pressing a plurality of device operation units 26A and 26B. When the device operation sections 26A and 26B are pressed (short-pressed) for less than a predetermined threshold time, an input operation similar to that of the level operation sections 82C and 82D of the remote control 14 is realized.
- a program including modules corresponding to each block of the device control unit 44 may be stored in a recording medium such as a DVD and installed in the device control unit 44 .
- the functions of each block may be exhibited by reading and executing a program stored in the storage by a processor (CPU or the like).
- the present disclosure relates to an electrical stimulator for applying electrical stimulation to a user.
- SYMBOLS 10 Electrical stimulator, 16... Electrode group, 42... Signal application part, 50, 50L, 50R... EMS waveform group, 52A... 1st pulse waveform group, 52B... 2nd pulse waveform group, 56... Pulse signal.
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Abstract
Description
Claims (8)
- 電気刺激を筋肉に付与するためのプログラムであって、
電極群に電圧信号を印加する信号印加部を備える電気刺激装置のコンピュータに、
前記信号印加部を制御することによって、前記電圧信号として、複数のパルス波形群を繰り返し前記電極群に印加する機能を、
実行させ、
前記複数のパルス波形群は、
15Hz~25Hzの周波数に対応する第1周期毎に間欠的に印加される第1パルス波形群と、
前記第1周期における前記第1パルス波形群の印加期間外に印加される第2パルス波形群と、を含む筋肉電気刺激プログラム。 - 前記第1パルス波形群のパルス出力時間は、前記第2パルス波形群のパルス出力時間よりも長い請求項1に記載の筋肉電気刺激プログラム。
- 前記第1パルス波形群のパルス電圧は、前記第2パルス波形群のパルス電圧よりも高い請求項1に記載の筋肉電気刺激プログラム。
- 前記第1パルス波形群のパルス出力時間は、前記第2パルス波形群のパルス出力時間よりも長く、
前記第1パルス波形群のパルス電圧は、前記第2パルス波形群のパルス電圧よりも高い請求項1に記載の筋肉電気刺激プログラム。 - 前記パルス波形群は、同一の前記第1周期内において前記第1周期よりも短い第2周期毎に繰り返し印加され、
前記第1周期における一つの前記第2周期の部分が前記第1パルス波形群の印加期間となる請求項1から4のいずれか1項に記載の筋肉電気刺激プログラム。 - 前記電極群に印加する機能は、前記信号印加部を制御することによって、連続する複数のブロック期間のそれぞれにおいて、前記複数のパルス波形群を繰り返し前記電極群に印加し、
前記複数のブロック期間のそれぞれは、前記パルス波形群のパルス波形又は前記ブロック期間の時間長の少なくとも一方において異なる請求項1から5のいずれか1項に記載の筋肉電気刺激プログラム。 - 前記電極群に印加する機能は、前記信号印加部を制御することによって、前記電圧信号として、左脚に電気刺激を付与する左脚用EMS(Electric Muscle Stimulation)波形群と、右脚に電気刺激を付与する右脚用EMS波形群とを交互に前記電極群に印加し、
前記EMS波形群は、前記複数のパルス波形群の繰り返しである請求項1から6のいずれか1項に記載の筋肉電気刺激プログラム。 - ユーザに電気刺激を付与する電極群と、
前記電極群に電圧信号を印加する信号印加部と、
請求項1から7のいずれか1項に記載の筋肉電気刺激プログラムを実行する制御部と、を備える電気刺激装置。
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EP22779823.8A EP4316609A1 (en) | 2021-03-29 | 2022-03-07 | Muscle electrical stimulation program and electrical stimulation device |
CN202280022756.9A CN116997388A (zh) | 2021-03-29 | 2022-03-07 | 肌肉电刺激程序及电刺激装置 |
KR1020237030650A KR20230162777A (ko) | 2021-03-29 | 2022-03-07 | 근육 전기 자극 프로그램 및 전기 자극 장치 |
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JP2016507334A (ja) * | 2013-02-22 | 2016-03-10 | ボストン サイエンティフィック ニューロモデュレイション コーポレイション | パルス列を組み合わせる手段を有する多チャネル神経変調システム |
JP2020010961A (ja) | 2018-07-20 | 2020-01-23 | 株式会社 Mtg | 電気刺激装置 |
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- 2021-03-29 JP JP2021055149A patent/JP2022152392A/ja active Pending
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2022
- 2022-03-07 KR KR1020237030650A patent/KR20230162777A/ko unknown
- 2022-03-07 WO PCT/JP2022/009595 patent/WO2022209599A1/ja active Application Filing
- 2022-03-07 EP EP22779823.8A patent/EP4316609A1/en active Pending
- 2022-03-07 CN CN202280022756.9A patent/CN116997388A/zh active Pending
- 2022-03-08 TW TW111108422A patent/TW202237235A/zh unknown
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JP2003220149A (ja) * | 2002-01-30 | 2003-08-05 | Ya Man Ltd | パルス健康器 |
JP2004113485A (ja) * | 2002-09-26 | 2004-04-15 | Bless:Kk | 生体刺激装置 |
US20140005745A1 (en) * | 2008-06-18 | 2014-01-02 | Accelerated Care Plus Corp. | Electrical stimulation method for reduction of joint compression |
US20140296936A1 (en) * | 2009-04-22 | 2014-10-02 | Nevro Corporation | Spinal cord modulation for inducing paresthetic and anesthetic effects, and associated systems and methods |
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JP2016507334A (ja) * | 2013-02-22 | 2016-03-10 | ボストン サイエンティフィック ニューロモデュレイション コーポレイション | パルス列を組み合わせる手段を有する多チャネル神経変調システム |
JP2020010961A (ja) | 2018-07-20 | 2020-01-23 | 株式会社 Mtg | 電気刺激装置 |
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TW202237235A (zh) | 2022-10-01 |
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