WO2016163254A1 - Dispositif et procédé de mesure de force musculaire - Google Patents

Dispositif et procédé de mesure de force musculaire Download PDF

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Publication number
WO2016163254A1
WO2016163254A1 PCT/JP2016/059836 JP2016059836W WO2016163254A1 WO 2016163254 A1 WO2016163254 A1 WO 2016163254A1 JP 2016059836 W JP2016059836 W JP 2016059836W WO 2016163254 A1 WO2016163254 A1 WO 2016163254A1
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Prior art keywords
pressure
trunk
expansion
muscle strength
measurement
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PCT/JP2016/059836
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English (en)
Japanese (ja)
Inventor
加藤仁志
塚原義人
森雅人
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日本シグマックス株式会社
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Publication of WO2016163254A1 publication Critical patent/WO2016163254A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow

Definitions

  • the present invention relates to an apparatus and a method for measuring muscle strength.
  • Patent Document 2 an apparatus has been proposed that has an attachment with a pressure sensor, and the subject measures trunk muscle strength by pressing the back or the like against the attachment.
  • Patent Document 2 an apparatus that includes an inflatable body attached to the trunk and measures the extreme value of the compression force applied to the trunk due to the expansion of the inflatable body as trunk muscle strength has been proposed (Patent Document 2). reference).
  • the present invention has been made in view of such problems, and one of its purposes is to provide an apparatus for measuring muscle strength that is gentle on the subject's body.
  • An embodiment of the present invention is a muscle strength measuring device.
  • This muscular strength measuring device includes an inflatable body that can be inflated and inflated by supplying and discharging fluid, a wearing band that can be worn so as to be wound around a specific part of a subject, and a pressure measuring unit for measuring the internal pressure of the inflated body And a control unit that executes predetermined calculation processing based on measurement information from the pressure measurement unit, an input unit that receives a user's instruction input, and an output unit that outputs a calculation result by the control unit.
  • the control unit starts muscular strength measurement processing based on an instruction input by the user, and calculates the first pressure and the second pressure measured in the process in which the muscle at the specific site contracts from the relaxed state with the wearing band attached.
  • the information obtained based on the difference between the first pressure and the second pressure is output to the output unit as information indicating the muscle strength corresponding to the specific part.
  • the muscular strength simply by causing the subject to contract the muscle of the specific part within a reasonable range in a state where the wearing band is wound around the specific part. That is, it is possible to measure muscle strength according to the state of each subject without joint motion.
  • the muscular strength is evaluated by paying attention to the pressure difference measured in the process in which the internal pressure of the expansion / contraction body changes, it is not necessary to increase the internal pressure of the expansion / contraction body to the limit of the muscular strength. For this reason, it is possible to measure muscle strength that is kind to the body of the subject.
  • Another aspect of the present invention is a muscle strength measurement method for measuring the muscle strength of a specific part by attaching the attachment band including an expansion / contraction body that can be inflated and contracted by supplying and discharging fluid around the specific part of the subject. is there.
  • This muscle strength measurement method is a method for measuring the change in internal pressure of the expansion / contraction body when the subject contracts the muscle at a specific site from the relaxed state without accompanying joint movement in a state where fluid is not supplied to or discharged from the expansion / contraction body.
  • the muscular strength is measured based on the subject's own active action of contracting the muscle at the specific site from the relaxed state without supplying or discharging fluid to the expansion / contraction body. That is, even when no pressure is supplied from the outside, the muscle strength is evaluated based on the magnitude of the change in the internal pressure using the fact that the subject increases the internal pressure of the expansion / contraction body by contracting the muscle strength. For this reason, it is not necessary to accompany the joint movement when measuring the muscular strength, and the subject does not receive an unexpected compression force from the expansion / contraction body. For this reason, it is possible to measure muscle strength that is kind to the body of the subject.
  • Still another aspect of the present invention is a muscle strength measuring method for measuring muscle strength of a trunk by wearing a band with an expansion / contraction body so as to be wound around the trunk of the subject.
  • This muscle strength measurement method includes a step in which a subject detects the internal pressure of the expansion / contraction body as the trunk contraction pressure when the circumference diameter of the trunk section is reduced by contracting the trunk muscle from the relaxed state, and the trunk contraction Outputting information based on pressure as information indicating muscle strength of the trunk.
  • the muscular strength is measured based on the subject's active action of contracting the trunk muscles from the relaxed state.
  • a novel technique is adopted in which the muscle is contracted in the direction of reducing the peripheral diameter of the trunk and the muscle strength is evaluated based on the trunk contraction pressure detected at that time.
  • the present invention it is possible to provide a muscular strength measurement device that is kind to the body of a subject.
  • One embodiment of the present invention is a muscle strength measurement method for measuring muscle strength of a specific part such as a subject's trunk and limbs.
  • the method of measuring muscle strength (pressure resistance) of a subject who resists the internal pressure of the expansion / contraction body as a method for measuring such muscle strength, the subject contracts his / her muscle without applying pressure to the expansion / contraction body.
  • a method of measuring the pressure change of the expansion / contraction body due to the above can be considered.
  • these measurement methods are distinguished from the pressure-receiving manner of the subject, and the former may be referred to as “passive measurement method” and the latter may be referred to as “active measurement method”.
  • “exercising muscular strength” specifically means “contracting muscles by demonstrating resisting muscular strength”.
  • the fluid supply / discharge device changes the internal pressure of the expansion / contraction body in the passive measurement method, and the subject itself changes the internal pressure of the expansion / contraction body in the active measurement method.
  • the active measurement method in which the internal pressure of the expansion / contraction body can be adjusted by itself is gentler on the subject's body.
  • an example of an apparatus to which the active measurement method is applied will be mainly illustrated.
  • a passive measurement method can be realized in a form that is gentle to the subject's body if the application method is devised.
  • the muscle strength measurement device includes a wearing band that can be worn so as to be wound around a specific part, a pressure measurement unit for measuring the internal pressure of the inflated and contracted body, and a predetermined calculation process for muscle strength measurement.
  • the mounting band includes an expansion / contraction body that can be expanded / contracted by supplying and discharging fluid.
  • the expansion / contraction body itself may be used as the attachment band, or the expansion / contraction body may be attached to one side of the fixed band, or may be accommodated inside the storage bag to constitute the attachment band.
  • the fixing band When using the fixing band, it is preferable to use a material that does not expand and contract, and that the fixing band is arranged outside the expansion / contraction body when the mounting band is wound around a specific part. Since the circumference of the fixed band does not change, a change in the state of the muscle at a specific site can be sensitively detected as a change in the internal pressure of the expansion / contraction body. That is, it becomes easy to detect the internal pressure change of the expansion / contraction body when the muscle at the specific site contracts. From the same point of view, when using a storage bag, use a non-stretchable material for the part placed outside the expansion / contraction body, and use a highly stretchable material for the part arranged inside the expansion / contraction body. Is preferred.
  • the expansion / contraction body itself is used as the wearing band, it is preferable to have a single structure arranged over the entire circumference of the specific part. Also, when the inflatable body is provided integrally with the fixing band or the storage bag, it is preferable that the inflatable body has a single structure that is long enough to cover the entire circumference of the specific portion. That is, if the expansion / contraction body is provided only at a part of the outer periphery of the specific part, it is difficult to appropriately measure the muscular strength unless the arrangement of muscles in the specific part corresponds to the arrangement of the expansion / contraction body.
  • the expansion / contraction body having a single structure is arranged so as to cover the entire circumference of the specific portion, the internal pressure of the expansion / contraction body can be uniformly changed regardless of the arrangement of muscles in the specific portion. That is, it becomes possible to measure the muscular strength of a specific part in a form that does not substantially depend on the arrangement of muscles.
  • the “all circumferences” here may include the concept of substantially all circumferences (substantially all circumferences).
  • the fluid supplied to and discharged from the expansion / contraction body may be a liquid such as water or hydraulic oil, but it is preferable to use a gas such as air in consideration of pressure detection sensitivity and ease of handling.
  • the fluid is supplied and discharged during the measurement of muscle strength.
  • the fluid supply is completed before the measurement of muscle strength is started.
  • it is desirable that the supply of the fluid is an amount in which pressure is clearly applied to the specific part.
  • the fluid may not be discharged thereafter. That is, it is good also as an "expansion body" which does not supply / exhaust a fluid, after comprising an expansion / contraction body as a mounting band.
  • the “pressure measurement unit” may be a pressure sensor that outputs a detection signal corresponding to the pressure. Moreover, the measuring device or apparatus which calculates a pressure value based on the detected value of a pressure sensor may be sufficient.
  • the “control unit” may be a control unit configured to be connected to each other separately from the wearing band. Alternatively, it may be a control module configured integrally with the mounting band.
  • the “input unit” may be an input device such as a keyboard or a touch panel. Or the communication apparatus which receives the information input in a user's terminal (mobile terminal etc.) by communication may be sufficient.
  • the “output unit” may be a display device that displays information indicating muscle strength on a screen, or may be a device that outputs sound. Or the apparatus which transmits the information which shows a muscular strength toward a user's terminal may be sufficient.
  • the muscle strength measurement process is started.
  • the internal pressure of the expansion / contraction body is sampled in the process in which the muscle at the specific site contracts from the relaxed state.
  • Information based on the difference between the first pressure and the second pressure obtained at that time is output as information indicating the muscle strength corresponding to the specific part.
  • the “specific part” may be a trunk or an extremity as described above.
  • the subject can contract the abdominal muscles to inflate or retract the abdomen, thereby increasing the internal pressure change of the inflated and contracted body, and facilitating the measurement of muscle strength. .
  • the peripheral diameter increases.
  • the change in the peripheral diameter can be regarded as a volume change of a specific part due to muscle strength, and this can be detected as a change in the internal pressure of the expansion / contraction body. For this reason, the pressure measurement method of the present embodiment is widely applicable to the trunk and extremities.
  • the “first pressure” may be the lowest pressure and the “second pressure” may be the highest pressure.
  • the muscular strength of a specific part can be evaluated in association with the amount of change in the internal pressure of the expansion / contraction body.
  • the detection sensitivity by the pressure measuring unit may be set so that there is no influence of noise when detecting the maximum pressure and the minimum pressure. If the difference between the previous detection value and the current detection value by the pressure measurement unit exceeds a predetermined reference value, processing such as invalidating the current detection value as an error may be performed. Further, smoothing processing by the least square method or the like may be performed on the detection values detected sequentially to obtain measurement values, and the maximum pressure and the minimum pressure based on the measurement values may be calculated.
  • the “first pressure” may be a predetermined low pressure
  • the “second pressure” may be a predetermined high pressure.
  • the pressure when the convergence is determined may be set as the “first pressure”.
  • an average value of a plurality of sampling pressures that are targets of convergence determination may be set as the “first pressure”.
  • the pressure when the convergence is determined may be set as the “second pressure”.
  • an average value of a plurality of sampling pressures that are targets of convergence determination may be set as the “second pressure”.
  • the “information based on the difference” may be the difference value itself, or may be the muscle strength information calculated based on the difference value. In the latter case, a coefficient for converting the difference value into muscle strength information may be set.
  • the subject can measure the muscle strength only by contracting the muscle of the specific part from the relaxed state in a state where the wearing band is wound around the specific part. That is, muscle strength can be measured without accompanying joint motion.
  • muscle strength can be measured without accompanying joint motion.
  • an active measurement method it is possible to measure muscle strength simply by allowing the subject to contract the muscle at the specific site within a reasonable range. That is, the subject himself / herself changes the internal pressure of the expansion / contraction body in a state where there is no fluid supply / discharge to / from the expansion / contraction body, and the control unit processes information based on the change in internal pressure, thereby providing a substantial burden on the subject's body. It is possible to measure muscle strength without putting on.
  • a “reference pressure” for determining the first pressure and the second pressure may be set.
  • the internal pressure of the expansion / contraction body in a relaxed state of the muscular strength at a specific site may be set as the “reference pressure”. Then, a predetermined pressure when the internal pressure of the expansion / contraction body becomes lower than the reference pressure is acquired as “first pressure”, and a predetermined pressure when the internal pressure of the expansion / contraction body becomes higher than the reference pressure is acquired as “second pressure”. It may be acquired as “pressure”.
  • the internal pressure of the expansion / contraction body becomes lower than the reference pressure.
  • the internal pressure of the expansion / contraction body at this time may be detected as the trunk contraction pressure (first pressure).
  • the internal pressure of the expansion / contraction body becomes higher than the reference pressure.
  • the internal pressure of the expansion / contraction body at this time may be detected as the trunk expansion pressure (second pressure). Then, information based on the trunk inflation pressure and trunk contraction pressure may be output as information indicating the muscle strength of the trunk.
  • the information based on the trunk inflation pressure may be muscular strength for expanding the trunk (for example, muscular strength for expanding the abdomen).
  • the information based on the trunk contraction pressure may be muscular strength for reducing the trunk (for example, muscular strength for retracting the abdomen).
  • information based on the difference between the trunk inflation pressure and the trunk contraction pressure may be the muscle strength of the trunk (trunk muscle strength, abdominal muscle strength).
  • the transverse abdominal muscles contract and exert muscle strength
  • the diaphragm, rectus abdominis, internal oblique muscles, and external oblique muscles contract and muscle strength Demonstrate.
  • information based on the rate of change of the internal pressure of the expansion / contraction body may be used as the muscle strength information.
  • Information based on the time change of the pressure from the first pressure to the second pressure may be output as the muscle strength information of the specific part. That is, the muscular strength may be evaluated based on the responsiveness when the subject tries to contract the muscle. If the time change rate of pressure (the speed at which the muscular force acts) is large, it may be evaluated that the strength of the muscular strength is large, and if the time change rate is small, the strength of the muscular strength may be evaluated to be small.
  • the “time change rate of pressure” may be calculated based on the sampled pressure value and the sampling time interval, or may be a differential value of a function obtained by smoothing the pressure change.
  • the “first pressure” is the trunk contraction pressure
  • the “second pressure” is the trunk inflation pressure
  • the time rate of change of the internal pressure from the state where the circumference of the trunk is reduced to the expansion is increased.
  • the “first pressure” is used as a reference pressure
  • the “second pressure” is used as a trunk inflation pressure
  • the muscle strength based on the time change rate of the internal pressure from the relaxed state of the muscle until the circumference of the trunk is expanded. Information may be determined.
  • the “first pressure” is used as a reference pressure
  • the “second pressure” is used as a trunk contraction pressure
  • the muscle strength is determined based on the rate of change in internal pressure over time from the relaxed state of the muscle to the reduction of the circumference of the trunk. Information may be determined. By comprising in this way, muscular strength can be evaluated from a viewpoint of the responsiveness of muscle.
  • a training apparatus including the muscle strength measuring apparatus described above can also be configured.
  • the training apparatus sets a pressure force obtained by multiplying the muscle strength value by a predetermined ratio based on the muscle strength information.
  • the control unit may set a training schedule with the applied pressure as an upper limit, and may apply a compression force to a specific part of the user according to the schedule.
  • FIG. 1 is a diagram schematically illustrating a configuration of the muscle strength measuring apparatus according to the embodiment.
  • A shows the whole structure of a muscular strength measuring apparatus
  • B shows a control unit.
  • FIG. 2 is a diagram schematically illustrating the configuration of the expansion / contraction body constituting the muscle strength measurement device.
  • A shows the state before inflating the expansion / contraction body
  • B shows the state after inflating the expansion / contraction body.
  • the muscle strength measuring device 1 includes an attachment band 2 wound around the trunk (abdomen) of a subject, and a control unit 4 that executes predetermined calculation processing and control for muscle strength measurement.
  • the wearing band 2 and the control unit 4 are connected via an air tube 6.
  • the wearing band 2 is configured by housing the expansion / contraction body 5 in a band-shaped storage belt 3.
  • the air tube 6 is provided integrally with the expansion / contraction body 5, and is drawn out from a hole 7 provided in the center of the storage belt 3.
  • the expansion / contraction body 5 is made of an air bag made of resin such as urethane, and has a belt-like main body 10 along the almost entire length of the storage belt 3.
  • An air tube 6 extends from the center of the main body 10. The periphery of the expansion / contraction body 5 is sealed, and air can be supplied and discharged only through the air tube 6.
  • the main body 10 is configured to swell with both ends thereof and to apply pressure. Both end portions of the main body 10 correspond to connection portions provided at both end portions of the storage belt 3. By connecting those connecting portions with a hook-and-loop fastener or the like, the mounting band 2 can be mounted on the trunk.
  • the control unit 4 is configured by accommodating a control unit, a pressure measurement unit, and the like, which will be described later, inside the case 12.
  • a display unit 14 is provided at the center of the upper surface of the case 12, and various buttons as operation units to be described later are arranged around the display unit 14.
  • a power button 20, an upper button 22, a lower button 24, an enter button 26, a start button 28, and an emergency stop button 30 are provided.
  • Each button constitutes an input unit that receives an instruction input from the user.
  • the power button 20 is operated to turn on / off the power to the control unit 4.
  • the upper button 22 and the lower button 24 are operated not only when selecting an option displayed on the display unit 14 but also when adjusting the pressure of the expansion / contraction body 5.
  • the determination button 26 is operated when determining the selected option.
  • the start button 28 is operated when starting muscle strength measurement.
  • the emergency stop button 30 is operated when an emergency stop of the pressure increase of the expansion / contraction body 5 is performed.
  • a connection port for connecting the tip of the air tube 6 and a connection port for connecting a power cord are provided on the side portion of the case 12.
  • FIG. 3 is a diagram schematically showing the electrical configuration and connection structure of the control unit 4.
  • the control unit 4 is configured around the control unit 40.
  • the control unit 40 includes a CPU, a ROM, a RAM, and the like, and executes control and arithmetic processing of various devices for muscle strength measurement using these hardware and software.
  • the power source unit 44, the pressure measurement unit 46, the pump 48, and the pressure release valve 50 are connected to the control unit 40.
  • the power supply unit 44 includes a circuit for supplying power to each unit.
  • the pressure measurement unit 46 includes a pressure sensor for detecting the internal pressure of the expansion / contraction body 5.
  • the pump 48 is an air pump that is driven when the internal pressure of the expansion / contraction body 5 is increased.
  • the pressure release valve 50 is a normally closed electromagnetic valve that is connected to the downstream side of the pump 48 and is opened when the internal pressure of the expansion / contraction body 5 is lowered.
  • the control unit 40 drives the pump 48 based on a user operation input via the operation unit 42 to open and close the pressure release valve 50.
  • the control unit 40 also executes arithmetic processing based on the detection information of the pressure measurement unit 46 and causes the display unit 14 to display muscle strength measurement information.
  • FIGS. 4B to 4D show the display process in the pressure resistance measurement mode.
  • 5A to 5G show the display process of the pressing force measurement mode.
  • the user can select a plurality of modes related to muscle strength measurement by performing operation input according to the screen. That is, when the power is turned on by pressing the power button 20, a mode selection screen shown in FIG. 4A is displayed first. In the illustrated example, five modes of muscle strength measurement 1, muscle strength measurement 2, training 1, training 2, and setting can be selected.
  • “Muscle Strength Measurement 1” is a muscle strength measurement mode based on a passive measurement method, and is a pressure resistance measurement mode in which a subject measures muscle strength based on a passive motion that resists (antagonizes) the pressure applied to the trunk.
  • “Muscle Strength Measurement 2” is a muscle strength measurement mode based on an active measurement method, and is a pushing force measurement mode in which a subject measures muscle strength based on an active motion that changes the circumference of the trunk.
  • “Training 1” is a mode in which the subject exercises with a constant rhythm while maintaining an appropriate pressure on the trunk.
  • Training 2 is a mode in which pressurization and decompression on the trunk are repeated at a constant rhythm, and the subject performs training with effort according to the pressurization.
  • “Setting” is a mode for the user to change the sensitivity of the pressure sensor.
  • one of the five modes is highlighted on the mode selection screen.
  • the user can shift the highlight display to any mode by pressing the upper button 22 and the lower button 24. Then, by pressing the enter button 26, the mode is shifted to the highlighted mode.
  • the pressure resistance measurement mode is entered and the screen shown in FIG. 4B is displayed.
  • the measured internal pressure value of the expansion / contraction body 5 is displayed at the top of the screen.
  • “Measure” indicates a real-time measurement value
  • “Max” indicates a maximum pressure.
  • a display such as “Push Start Button” that prompts the user to press the start button 28 is displayed.
  • a graph showing the change over time of the internal pressure of the expansion / contraction body 5 is displayed. The horizontal axis of this graph indicates the time elapsed from the start of measurement, and the vertical axis indicates the internal pressure of the expansion / contraction body 5.
  • the pump 48 When the start button 28 is pressed, the pump 48 is driven in a state in which the pressure release valve 50 is closed, and the internal pressure of the expansion / contraction body 5 is gradually increased substantially linearly as shown in FIG. . At this time, the subject receives a compressive force from the expansion / contraction body 5 and contracts the muscles of the trunk (abdomen). While the muscle contraction is maintained, the driving of the pump 48 is continued.
  • FIG. 4D shows a state in which 25.1 kPa is detected as the pressure resistance after 12 seconds from the start of measurement. In this embodiment, this pressure resistance is evaluated as the muscle strength of the subject based on the passive measurement method.
  • FIG. 5A when “muscle strength measurement 2” is selected, the mode is shifted to the pressing force measurement mode, and the screen shown in FIG. 5B is displayed.
  • the measured internal pressure value of the expansion / contraction body 5 is displayed at the top of the screen.
  • “Pumpup” indicates a real-time measurement value
  • “Max (diff)” indicates a difference between the maximum pressure and the minimum pressure.
  • a graph showing the change over time of the internal pressure of the expansion / contraction body 5 is displayed. The horizontal axis represents the time elapsed from the start of measurement, and the vertical axis represents the internal pressure of the expansion / contraction body 5.
  • the user can adjust the pressure (referred to as “reference pressure”) of the expansion / contraction body 5 that balances with the relaxed state of the trunk muscle by pressing the upper button 22 and the lower button 24 in this state. Pressurization is performed by depressing the upper button 22, and depressurization is performed by depressing the lower button 24.
  • the reference pressure is adjusted to 9.8 kPa.
  • the muscle strength measurement process is started. During this measurement, the pressure release valve 50 is closed and the pump 48 is stopped. This measurement is based on the internal pressure of the expansion / contraction body 5 (referred to as “trunk contraction pressure”) when the subject most contracts the circumference of the trunk, and the expansion / contraction body when the circumference of the trunk is expanded most. The difference from the internal pressure of 5 (referred to as “trunk inflation pressure”) is measured as muscle strength.
  • the former is a pressure detected when the subject retracts the abdomen to the maximum, and indicates the lowest pressure of the expansion / contraction body 5.
  • the latter is a pressure detected when the subject inflates the abdomen to the maximum, and indicates the maximum pressure of the expansion / contraction body 5.
  • the subject first contracts the muscle in the direction of retracting the abdomen, and then contracts the muscle in the direction of expanding the abdomen via the relaxed state.
  • the minimum pressure (9.0 kPa) is detected 2 seconds after the start of measurement (FIG. 5C). Thereafter, the pressure started to increase (FIG. 5D), and the maximum pressure (31.6 kPa) was detected 4 seconds after the start of measurement (FIG. 5E).
  • the maximum pressure is detected, the measurement is terminated and the display of the difference value is fixed.
  • 22.6 kPa is calculated as the pressure difference. In this embodiment, this pressure difference is evaluated as the muscle strength (pressing force) of the subject based on the active measurement method.
  • FIG. 5F shows a state in which the pressure difference (Max (diff)) is displayed immediately after the measurement.
  • the minimum pressure (Min) is displayed as shown in FIG.
  • the maximum pressure (Max) is displayed as shown in FIG. If the enter button 26 is further pressed from this state, the display returns to the display of the pressure difference (Max (diff)) in FIG. In this way, the display contents can be switched sequentially.
  • the mode is shifted to the continuous pressurization training mode.
  • the training process is started when the subject presses the start button 28 with the wearing band 2 wrapped around the abdomen.
  • the applied pressure is set based on the muscle strength information measured as described above.
  • the control unit 40 reads the muscular strength data obtained in the muscular strength measurement 1 or the muscular strength measurement 2, sets the applied pressure based on the muscular strength data, and operates the pump 48 until the internal pressure of the expansion / contraction body 5 becomes the pressure value. To drive. This applied pressure is continuously maintained during training unless the user operates the upper button 22 or the lower button 24.
  • the applied pressure can be set in advance as a ratio to the withstand pressure, for example, 70% of the withstand pressure measured in the muscle strength measurement 1.
  • it can be set in advance as a ratio to the subject's pressing force, for example, a value obtained by adding 50% of the pressure difference to the reference pressure measured in the muscle strength measurement 2.
  • the pressing force can be increased or decreased by pressing the upper button 22 or the lower button 24 after the pressing force is automatically set in this way.
  • the control unit 40 When the training is started, the control unit 40 outputs a buzzer sound at regular time intervals.
  • the subject can perform appropriate training without difficulty by applying power to the abdominal muscles according to the buzzer sound. Note that initial values are set for the on time and the off time of the buzzer sound, but can be appropriately changed.
  • training end processing is executed. That is, the pressure release valve 50 is opened, and the internal pressure of the expansion / contraction body 5 is reduced.
  • the mode is shifted to the intermittent pressurization training mode. Also in this mode, the training process is started when the subject presses the start button 28 with the wearing band 2 wrapped around the abdomen. Also in this case, the applied pressure is set based on the muscle strength information measured in advance.
  • the control unit 40 reads the muscular strength data obtained in the muscular strength measurement 1 or the muscular strength measurement 2, sets the reference pressure and the applied pressure based on the muscular strength data, and until the internal pressure of the expansion / contraction body 5 becomes the reference pressure.
  • the pump 48 is driven.
  • This pressure is set as a pressure that is increased with respect to the reference pressure.
  • it can be set in advance as a ratio to the difference between the withstand pressure and the reference pressure, such as 70% of the value obtained by subtracting the reference pressure from the withstand pressure measured in the muscle strength measurement 1.
  • it can set beforehand as a ratio with respect to a test subject's pressing force, such as setting it as 50% of the pressure difference measured by the muscular strength measurement 2, for example.
  • the pressing force can be increased or decreased by pressing the upper button 22 or the lower button 24 after the pressing force is automatically set in this way.
  • the control unit 40 controls to repeat pressurization and decompression at regular time intervals. That is, the pressure corresponding to the applied pressure is increased from the reference pressure and held for a certain time (pressurization maintaining time), and then reduced to the reference pressure. Then, after maintaining the reference pressure for a certain time (decompression time), the pressure is increased again. Such control is repeated until a preset training time elapses.
  • the subject can perform appropriate training without difficulty by applying force to the abdominal muscles during the pressurization. Although initial values are set for the pressurization maintenance time, the decompression time, and the training time, the settings can be changed as appropriate.
  • the mode is changed to the setting mode.
  • the sensitivity of the pressure sensor can be set in the range of sensitivity values 1 to 9, for example.
  • the sensitivity value can be increased by pressing the upper button 22, and the sensitivity value can be decreased by pressing the lower button 24.
  • the extreme value (upper limit / lower limit) of the pressure can be detected sensitively, It becomes easy to catch the state change.
  • Such setting makes it easy to apply this measurement method to, for example, a subject with small muscle strength.
  • the difference when the difference is set to a sensitivity that can be detected on a 2 kPa scale, it can be set so as not to be determined as an extreme value even if there is some pressure fluctuation (detection fluctuation).
  • Such a setting can suppress erroneous detection due to noise. It is particularly suitable for subjects with large muscle strength.
  • sampling interval For example, about 100 msec.
  • the buzzer sound can be turned on or off according to the user's preference. It can be turned on by pressing the upper button 22 and turned off by pressing the lower button 24.
  • the contrast of the liquid crystal screen can be set within a range of contrast values 1 to 9, for example.
  • the contrast value can be increased by pressing the upper button 22, and the contrast value can be decreased by pressing the lower button 24. The larger the contrast value, the brighter the screen, and the smaller the contrast value, the darker the screen.
  • FIG. 6 is a flowchart showing the flow of the pressure resistance measurement process executed by the control unit 40. This process is executed in the muscle strength measurement 1 mode.
  • the control unit 40 clears the measurement result stored in the predetermined area of the RAM (S12), and drives the pump 48 to apply pressure.
  • Start (S14).
  • the internal pressure (current detection value) Pa of the expansion / contraction body 5 detected this time is acquired (S16) and displayed on the screen (S18: see FIG. 4C).
  • the internal pressure (previous detection value) Pb of the expansion / contraction body 5 detected last time is read (S20) and compared with the current detection value Pa.
  • the previous detection value Pb is updated to the current detection value Pa (S24), and the process returns to S16. That is, pressurization is continued assuming that the pressure resistance of the subject has not yet been reached.
  • FIG. 7 is a flowchart showing the flow of the pressing force measurement process executed by the control unit 40. This process is executed in the muscle strength measurement 2 mode.
  • the reference pressure is adjusted by the user.
  • the control unit 40 drives the pump 48 with the pressure release valve 50 closed to pressurize (S42). If there is no pressurization instruction (N of S40), pressurization is stopped (S43). That is, the driving of the pump 48 is continued while the upper button 22 is pressed, and is stopped when the pressing is released.
  • a pressure reduction instruction is issued by pressing the down button 24 (Y in S44)
  • the pressure release valve 50 is opened with the pump 48 stopped, and the pressure is reduced (S46). If there is no pressure reduction instruction (N in S44), the pressure reduction is stopped (S47).
  • the pressure release valve 50 is opened while the lower button 24 is depressed, and is closed when the depression is released. Then, the pressure value detected by the pressure measuring unit 46 is displayed on the screen and updated (S48). The processes in S40 to S48 are repeatedly executed until the start button 28 is pressed as a measurement start instruction (N in S50).
  • the control unit 40 determines whether or not the internal pressure of the expansion / contraction body 5 is within an appropriate range (for example, 5 to 20 kPa) as the reference pressure Pbs. It is intended to prevent the measurement process from causing an error due to the internal pressure being excessively large or small. If the internal pressure is not appropriate as the reference pressure Pbs (N in S52), the pressure is adjusted to a preset reference pressure Pbs (for example, 10 kPa) (S54). If the internal pressure is appropriate (Y in S52), the process in S54 is skipped.
  • an appropriate range for example, 5 to 20 kPa
  • the measurement result stored in the predetermined area of the RAM is cleared (S56), the internal pressure (current detection value) Pa of the expansion / contraction body 5 detected this time is acquired (S58), and displayed on the screen (S60).
  • a minimum pressure measurement process for measuring the minimum pressure Pmin is executed (S62) and a maximum pressure measurement process for measuring the maximum pressure Pmax is executed (S64) so as to match the active movement of the trunk by the subject.
  • FIG. 8 is a flowchart showing in detail the minimum pressure measurement process of S62 in FIG.
  • the control unit 40 acquires the internal pressure (current detection value) Pa of the expansion / contraction body 5 detected this time (S70), and updates the display on the screen (S72). Subsequently, the internal pressure (previous detection value) Pb of the expansion / contraction body 5 detected last time is read (S74) and compared with the current detection value Pa. At this time, if the current detection value Pa is equal to or lower than the previous detection value Pb (Y in S76), the previous detection value Pb is updated to the current detection value Pa (S78), and the process returns to S70. That is, the measurement is continued assuming that the minimum pressure has not yet been reached.
  • FIG. 9 is a flowchart showing in detail the maximum pressure measurement process of S64 in FIG.
  • the control unit 40 acquires the detected value Pa this time (S90) and updates the display on the screen (S92). Subsequently, the previous detection value Pb is read (S94) and compared with the current detection value Pa. At this time, if the current detection value Pa is equal to or greater than the previous detection value Pb (Y in S96), the previous detection value Pb is updated to the current detection value Pa (S98), and the process returns to S90. That is, the measurement is continued assuming that the maximum pressure has not yet been reached.
  • FIG. 10 is a flowchart showing a flow of training processing executed by the control unit 40.
  • an example of an intermittent pressurization training mode (corresponding to training 2) in which pressurization and decompression are controlled is illustrated.
  • the reference pressure is adjusted by the user.
  • a pressurization instruction is made by pressing the upper button 22 (Y in S110)
  • the control unit 40 drives the pump 48 with the pressure release valve 50 closed to pressurize (S112). If there is no pressurization instruction (N of S110), pressurization is stopped (S113). That is, the driving of the pump 48 is continued while the upper button 22 is pressed, and is stopped when the pressing is released.
  • a pressure reduction instruction is issued by pressing the down button 24 (Y in S114)
  • the pressure release valve 50 is opened while the pump 48 is stopped, and the pressure is reduced (S116). If there is no pressure reduction instruction (N in S114), the pressure reduction is stopped (S117).
  • the pressure release valve 50 is opened while the lower button 24 is depressed, and is closed when the depression is released. Then, the pressure value detected by the pressure measuring unit 46 is displayed on the screen and updated (S118). The processing of S110 to S118 is repeatedly executed until the start button 28 is pressed as a training start instruction (N in S120).
  • the control unit 40 acquires the measurement data stored in the pressure resistance measurement mode or the pressure measurement mode (S122). Also, the training conditions set in the setting mode are acquired (S124). The training conditions are set values such as pressurization maintenance time, decompression time, training time, and the like, and initial values are read unless set by the user. Subsequently, it is determined whether or not the internal pressure of the expansion / contraction body 5 is within an appropriate range (for example, 5 to 20 kPa) as the reference pressure Pbs. This prevents the training process from starting due to the internal pressure being excessively high or low.
  • an appropriate range for example, 5 to 20 kPa
  • the pressure is adjusted to a preset reference pressure Pbs (for example, 10 kPa) (S128). If the internal pressure is appropriate (Y in S126), the process in S128 is skipped. Then, a training control process described later is executed (S130), and the training result is displayed on the screen (S132).
  • This training result can include, for example, information on the current training schedule, past training history of the user, and the like.
  • FIG. 11 is a flowchart showing in detail the training control process of S130 in FIG.
  • the control unit 40 first sets an appropriate pressure corresponding to the muscle strength of the subject as the training pressure Ptr based on the measurement data (S140). Then, a training schedule is set based on the training pressure, the reference pressure, and the training conditions acquired in S124 (S142), and training control is started (S144).
  • the pump 48 When the pressurization timing is based on the training schedule (Y in S146), the pump 48 is driven with the pressure release valve 50 closed, and pressurization is started (S148). When the internal pressure of the expansion / contraction body 5 reaches the training pressure Ptr (Y in S150), the pump 48 is stopped and pressurization is stopped (S152). If it is not the pressurization timing (N of S146), the processing of S148 to S152 is skipped.
  • the pressure release valve 50 When the pressure reduction timing is based on the training schedule (Y in S154), the pressure release valve 50 is opened while the pump 48 is stopped, and pressure reduction is started (S156). When the internal pressure of the expansion / contraction body 5 reaches the reference pressure Pbs (Y in S158), the pressure release valve 50 is closed and the pressure reduction is stopped (S160). If the decompression timing is not reached (N in S154), the processing in S156 to S160 is skipped.
  • the pressure of the expansion / contraction body 5 is increased to the set value.
  • the stop state of the pump 48 and the closed state of the pressure release valve 50 are maintained, and the applied pressure is maintained. Then, on / off of the buzzer sound is controlled according to the training schedule.
  • a training end process is executed. In the training end process, the pressure release valve 50 is opened, and the internal pressure of the expansion / contraction body 5 is reduced.
  • the muscle strength is measured based on the subject's own active action of contracting the muscles of the trunk from the relaxed state without supplying or discharging air to the expansion / contraction body 5 during the muscle strength measurement.
  • the subject does not receive an unexpected pressure from the expansion / contraction body 5. Since the measurement is performed by wrapping the wearing band 2 around the trunk, it is not necessary to accompany the joint movement when measuring the muscle strength. For this reason, for example, a patient whose force is applied only to a specific part of the body can be targeted. Further, muscle strength is measured in consideration of the trunk contraction pressure detected at that time by contracting the muscle in the direction of reducing the peripheral diameter of the trunk portion.
  • the detected pressure value (pressure difference) itself is presented as muscular strength information.
  • a calculation process for converting the pressure information into muscular strength information is provided, and the converted value is presented as muscular strength.
  • a reference for dividing the numerical value of the calculated muscular strength may be provided and presented as the muscular strength level.
  • a value obtained by dividing the pressure value (pressure difference) of a specific part by the peripheral diameter of the specific part may be presented as muscle strength.
  • the muscle strength information may be presented by evaluating that the muscle strength is large (the muscle strength level is high) when the pressure change rate is large and the muscle strength is small (the muscle strength level is low) when the pressure change rate is small. Moreover, when the measurement data of muscular strength can be collected in this way, an average value of sex and age, or a comparison (deviation value) with the average value may be presented. Further, an equivalent age index (how old the subject is) may be presented.
  • the attachment band may be configured so that the expansion / contraction body 5 is fixed inside the fixing belt (fixing band).
  • a non-stretchable material for the outer periphery of the fixed band or the storage bag (the surface that comes to the outside when the inflatable body is placed inside), and the pressure from the expansion of the inflatable body to the inside (to a specific part of the human body) Is preferably transmitted to the mounting surface side).
  • the outer perimeter of the fixed band attached to the specific part does not change, but when the expansion / contraction body inflates, displacement occurs inside (specific part) due to the pressure, and the displacement changes the internal pressure of the expansion / contraction body It is easy to catch as.
  • the expansion / contraction body is arranged only in a part around the specific part, the displacement of the specific part can be detected only in the part where the expansion / contraction body is arranged. For this reason, if the arrangement of the muscles at the specific site does not correspond to the arrangement of the expansion / contraction body, it may be difficult to measure the muscular strength by this method.
  • the expansion / contraction body when the expansion / contraction body is arranged almost all around the specific part as in the above embodiment, at least one part of the expansion / contraction body corresponds to the muscle arrangement, and the pressure change due to the muscle contraction is inflated. It can be generated uniformly in the contraction. This means that measurement independent of muscle placement can be performed, and muscle strength can be easily measured by this method.
  • the muscle strength measurement target is the trunk, but extremities such as the upper arm and thigh may be the measurement target.
  • the shape and size of the wearing band 2 are suitable for the measurement object.
  • the subject may measure the muscle strength based on a pressure difference (difference in internal pressure of the expansion / contraction body 5) detected when the subject contracts the muscular strength of the limbs from the relaxed state. it can.
  • the pressure release valve 50 is exemplified as an open / close valve that opens and closes the air discharge passage. In a modification, it is good also as a proportional valve etc. which can control the discharge
  • a proportional valve or the like that can adjust the amount of air supplied to the expansion / contraction body 5 may be provided separately.
  • an air type using air as a medium was adopted as a configuration for inflating the expansion / contraction body in order to tighten the belt.
  • a hydraulic type or a hydraulic type may be used.
  • a wire tightening mechanism using a pulley may be employed. In that case, a load change applied to the wire due to muscle contraction or relaxation may be detected, and information based on the load change may be presented as muscle strength information.
  • the expansion / contraction body 5 has a single structure that is long enough to extend over almost the entire circumference of the trunk.
  • it may be limited to a location corresponding to the abdominal muscles, and the length may correspond to a part of the trunk.
  • a plurality of inflated and deflated bodies may be arranged side by side on a specific part of the subject, and the internal pressure of each inflated and deflated body may be measured to evaluate muscle strength.
  • control unit 4 is provided separately from the attachment band 2 and connected by the air tube 6.
  • the control unit 4 may be provided integrally with the storage belt 3.
  • the display part 14 and the operation part 42 may be provided in the storage belt 3, they can be omitted by providing the control unit 4 with a wireless communication function.
  • the mobile terminal such as a tablet terminal and the control unit 4 may be communicable so that an instruction can be input on the mobile terminal.
  • the measurement information calculated by the control unit 4 may be transmitted to the mobile terminal, and the muscle strength information may be displayed on the display screen of the mobile terminal. In that case, the supply / discharge device may be omitted.
  • a simple air bag and a pressure sensor that measures the internal pressure may be assembled to form an inflatable body (expandable body).
  • the air bag may be provided with a vent that can be manually opened and closed so that it can be easily inflated.
  • this invention is not limited to the said Example and modification, A component can be deform
  • Various inventions may be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments and modifications. Moreover, you may delete some components from all the components shown by the said Example and modification.

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  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La présente invention porte sur un dispositif de mesure de force musculaire qui comprend, selon un mode de réalisation : une bande portable qui peut être portée de manière à être enroulée autour d'un site spécifié sur un sujet et qui comprend un corps de gonflage/dégonflage qui peut être gonflé ou dégonflé par apport ou retrait d'air à/de celui-ci ; une unité de mesure de pression pour mesurer la pression interne du corps de gonflage/dégonflage ; une unité de commande qui exécute un processus de calcul prescrit sur la base d'informations de mesure provenant de l'unité de mesure de pression ; une unité d'entrée qui accepte l'entrée d'une instruction par un utilisateur ; et une unité de sortie qui délivre en sortie le résultat du calcul provenant de l'unité de commande. L'unité de commande initie un procédé de mesure de force musculaire sur la base de l'entrée d'une instruction par l'utilisateur, acquiert une première pression et une seconde pression qui sont mesurées au niveau du site spécifié pendant la contraction du muscle à partir d'un état de relâchement, pendant le port de la bande portable, et amène l'unité de sortie à délivrer en sortie, en tant qu'informations représentant la force musculaire correspondant au site spécifié, des informations basées sur la différence entre la première et la seconde pression.
PCT/JP2016/059836 2015-04-08 2016-03-28 Dispositif et procédé de mesure de force musculaire WO2016163254A1 (fr)

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JP2015078892A JP6511605B2 (ja) 2015-04-08 2015-04-08 筋力測定装置および方法
JP2015-078892 2015-04-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10137362A (ja) * 1996-09-13 1998-05-26 Nippon Colin Co Ltd 運動負荷装置の制御装置
US20030144621A1 (en) * 2002-01-10 2003-07-31 Paul Osterbye Portable lumbar stabilization and extremities rehabilitation muscle feedback kit
US6725728B1 (en) * 2002-11-26 2004-04-27 Mike Chien Ming Lee Finger gripping force measuring or testing device
US20050170938A1 (en) * 2004-01-30 2005-08-04 Ngc Worldwide, Inc. Belt for feedback during abdominal core muscle exercise
JP2014147649A (ja) * 2013-02-04 2014-08-21 Hitoshi Kato 体幹筋力測定及びトレーニング装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10137362A (ja) * 1996-09-13 1998-05-26 Nippon Colin Co Ltd 運動負荷装置の制御装置
US20030144621A1 (en) * 2002-01-10 2003-07-31 Paul Osterbye Portable lumbar stabilization and extremities rehabilitation muscle feedback kit
US6725728B1 (en) * 2002-11-26 2004-04-27 Mike Chien Ming Lee Finger gripping force measuring or testing device
US20050170938A1 (en) * 2004-01-30 2005-08-04 Ngc Worldwide, Inc. Belt for feedback during abdominal core muscle exercise
JP2014147649A (ja) * 2013-02-04 2014-08-21 Hitoshi Kato 体幹筋力測定及びトレーニング装置

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