JP2011103914A - Muscle tone measuring instrument, muscle tone measuring method, and muscle tone measuring program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a muscle tone measuring instrument which can detect abnormal muscle tone irrespective of the posture and/or action of a person to be measured, a muscle tone measuring method, and a muscle tone measuring program. <P>SOLUTION: The muscle tone measuring instrument 1 includes: a posture and action information acquisition section 2; a myoelectricic potential measuring section 3; a posture and action information discerning section 4; a myoelectric potential database (myoelectric potential DB) 5; a myoelectric potential estimation section 6; and an abnormal muscle tone detection section 7. The myoelectric potential measuring section 3 measures myoelectric potential generated in the body of the person to be measured. The posture and action information acquisition section 2 acquires posture and action information of the person to be measured. The posture and action information discerning section 4 discerns what posture and action the person to be measured takes and performs. The myoelectric potential estimation section 6 estimates the myoelectric potential to be generated from the posture and action information by using the myoelectric potential DB 5. The abnormal muscle tone detection section 7 detects the abnormality of the muscle tone of the person to be measured by comparing actually measured myoelectric potential with estimated myoelectric potential at the same time as the actual measurement by posture and action information. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a muscle tone measuring device, a muscle tone measuring method, and a muscle tone measuring program for detecting abnormal muscle tone caused by illness or psychological tension.

  In recent years, many measuring devices have been developed that are attached to the body, measure biological information (such as blood pressure or heart rate), perform analysis, and detect whether the biological information is abnormal. Some of these measuring devices have various functions. For example, Patent Document 1 introduces a blood pressure monitoring device that can obtain high blood pressure monitoring accuracy in a blood pressure monitoring device that monitors blood pressure values of a living body based on propagation velocity information of a pulse wave that propagates within a living artery. ing.

  Among measuring devices that detect abnormalities in biological information, measuring devices that detect abnormalities in muscle tone have also been developed. Abnormal muscle tension often occurs during tension due to illness or psychological factors. An apparatus related to the measurement of muscle tone is described in Patent Document 2, for example. Patent Literature 2 discloses a tension relaxation device that learns a high tension time zone from a measured muscle tension level, and notifies the user of tension relaxation before the high tension time zone, that is, before the muscle state deteriorates. Or the tension relief system is described. Usually, as a technique for measuring such abnormal muscle tone, a method for measuring myoelectric potential is used.

  Other techniques for detecting abnormal muscle tone include a method in which a doctor moves a patient's body passively and evaluates the patient's muscle tone based on whether or not the patient feels resistance. For example, as a technique related to this, Non-Patent Document 1 describes a muscular strength test method in which an inspector examines the correspondence between a patient's body movement and muscle activity.

Japanese Patent Laid-Open No. 10-043147 JP 2008-022934 A

Helen J. Hislop, written by Jacqueline Montgomery, translated by Naoichi Tsuyama and Kozo Nakamura, “New Manual Strength Testing Method”, Co., Ltd., March 1, 2008

  In the measurement of biological information such as blood pressure, heart rate or muscle tone, whether the biological information is normal or abnormal may vary depending on the posture or action of the person being measured. Also in the blood pressure monitoring device described in Patent Document 1, in order to detect abnormal biological information when the biological information (blood pressure) predicted from the biological information (pulse information) is abnormal, the posture of the measurement subject, etc. Is not considered. Also in the muscle tension measuring means in the tension alleviating device described in Patent Document 2, the posture of the person to be measured is not taken into consideration.

  In particular, in the measurement of muscle tone, when a measuring device is attached to the arm of the person to be measured, the state of muscle tone that is abnormal (the value of myoelectric potential that is abnormal) varies greatly depending on the posture of the arm or the like. . Therefore, in the measurement and abnormality detection of muscle tone, it is necessary for a third party such as a doctor or an inspector with specialized knowledge to check whether the posture of the measurement subject is suitable for measurement.

  The present invention has been made in view of the above circumstances, and a muscle tension measuring device, a muscle tension measuring method, and a muscle that can detect abnormal muscle tension regardless of the posture and / or movement of the measurement subject. The purpose is to provide a tension measurement program.

The muscle tone measuring device according to the first aspect of the present invention is:
A myoelectric potential measuring means for measuring myoelectric potential generated in the body of the measurement subject;
Posture / motion information acquisition means for acquiring posture / motion information which is information of the measurement subject's posture and / or motion;
Posture / motion information discriminating means for discriminating the posture and / or motion of the person to be measured based on the posture / motion information;
Posture / motion information discrimination based on information about normal myopotentials to be generated when a measurement subject takes a specific posture and / or motion and measures a myoelectric potential of a specific part of the body. Myoelectric potential estimation means for estimating myoelectric potential to be generated in the posture and / or movement of the measurement subject determined by the means;
By comparing the measured myoelectric potential measured by the myoelectric potential measuring means with the estimated myoelectric potential to be generated estimated by the myoelectric potential estimating means at the same time, the abnormality of the muscle tone of the measurement subject is determined. Abnormal muscle tone detecting means for detecting;
It is characterized by providing.

The muscle tone measuring method according to the second aspect of the present invention includes:
A myoelectric potential measuring step for measuring the myoelectric potential generated in the body of the measurement subject;
Posture / motion information acquisition step for acquiring posture / motion information that is information on the posture and / or motion of the measurement subject;
A posture / motion information determining step for determining what posture and / or motion the measurement subject is based on the posture / motion information;
Posture / motion information discrimination based on information about normal myopotentials to be generated when a measurement subject takes a specific posture and / or motion and measures a myoelectric potential of a specific part of the body. A myoelectric potential estimating step for estimating a myoelectric potential to be generated in the posture and / or movement of the measurement subject determined by the step;
By comparing the actually measured myoelectric potential measured by the myoelectric potential measuring step with the estimated myoelectric potential to be generated estimated by the myoelectric potential estimating step at the same time, the abnormality of the muscle tension of the measurement subject is determined. Detecting abnormal muscle tone to detect;
It is characterized by providing.

A muscle tone measurement program according to the third aspect of the present invention is stored in a computer.
A myoelectric potential measuring step for measuring the myoelectric potential generated in the body of the measurement subject;
Posture / motion information acquisition step for acquiring posture / motion information that is information on the posture and / or motion of the measurement subject;
A posture / motion information determining step for determining what posture and / or motion the measurement subject is based on the posture / motion information;
Posture / motion information discrimination based on information about normal myopotentials to be generated when a measurement subject takes a specific posture and / or motion and measures a myoelectric potential of a specific part of the body. A myoelectric potential estimating step for estimating a myoelectric potential to be generated in the posture and / or movement of the measurement subject determined by the step;
By comparing the actually measured myoelectric potential measured by the myoelectric potential measuring step with the estimated myoelectric potential to be generated estimated by the myoelectric potential estimating step at the same time, the abnormality of the muscle tension of the measurement subject is determined. Detecting abnormal muscle tone to detect;
Is executed.

  According to the muscle tone measuring device, the muscle tone measuring method, and the muscle tone measuring program according to the present invention, abnormal muscle tone can be detected regardless of the posture and / or movement of the measurement subject.

It is a block diagram which shows the structural example of the muscle tone measuring apparatus which concerns on Embodiment 1 of this invention. 3 is a flowchart showing an example of the operation of the muscle tone measurement system according to the first embodiment. It is a block diagram which shows the structural example of the muscle tone measuring apparatus which concerns on Embodiment 2 of this invention. 10 is a flowchart showing an example of the operation of the myoelectric potential measurement system according to the second embodiment. 10 is a flowchart showing an example of the operation of the myoelectric potential estimation system according to the second embodiment. 10 is a flowchart illustrating an example of an operation of the abnormal muscle tone detection system according to the second embodiment. It is a figure which shows the conversion table which is stored in the myoelectric potential database which concerns on the specific example 1 of this invention, and which a myoelectric potential estimation part uses. It is a figure which shows the bending angle of the shoulder joint which concerns on the specific example 1. FIG. It is a figure which shows the use condition of the muscle tone measuring device which concerns on the specific example 1. FIG. It is a figure which shows the bending angle of the shoulder joint in the time passage concerning the specific example 1. FIG. It is a figure which shows the maximum value of the amplitude of the myoelectric potential estimated in the time passage concerning the specific example 1. It is a figure which shows the myoelectric potential measured by the myoelectric potential sensor in the time passage concerning the specific example 1. It is a figure which shows the use condition of the muscle tone measuring device which concerns on the specific example 2 of this invention. It is a block diagram which shows an example of the hardware constitutions of the muscle tone measuring apparatus which concerns on this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

  In the present embodiment, the abnormal muscle tone refers to a state different from normal normal muscle tone, such as a state of increased or decreased muscle tone, due to illness or psychological factors. The normal myoelectric potential means a myoelectric potential (a state of amplitude of myoelectric potential) generated at a specific part of the body when a normal human performs a specific posture and / or movement in normal times. A normal person in normal times refers to a person who has no abnormality in muscle tone due to illness or psychological factors. In the present embodiment, the posture of the person to be measured refers to the posture of the body in a state where the person to be measured has stopped, and the movement of the person to be measured refers to the movement of the body in a state where the person to be measured has moved. .

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration example of a muscle tone measuring device according to Embodiment 1 of the present invention. In the first embodiment, the muscle tone measuring apparatus 1 includes a posture / motion information acquisition unit 2, a myoelectric potential measurement unit 3, a posture / motion information determination unit 4, a myoelectric potential database (myoelectric potential DB) 5, A myoelectric potential estimation unit 6, an abnormal muscle tone detection unit 7, and an abnormal muscle tone display unit 8 are provided. In the muscle tension measuring device 1 according to the first embodiment, as long as at least each of the components described above is provided, the muscle tone measuring device 1 may be configured as a whole or may be configured from two or more devices. .

  The posture / motion information acquisition unit 2 acquires information about the posture / motion of the measurement subject (hereinafter, posture / motion information) and sends the information to the posture / motion information determination unit 4. The posture / motion information discriminating unit 4 receives the posture / motion information and discriminates the posture / motion of the person to be measured. The posture / motion information acquisition unit 2 and the posture / motion information determination unit 4 are configured by a technique known to those skilled in the art that can quantitatively measure human movement, such as an acceleration / angular velocity sensor or motion capture. . The posture / motion information determination unit 4 sends the determined posture / motion information to the myoelectric potential estimation unit 6.

  The myoelectric potential measuring unit 3 measures the myoelectric potential generated at a predetermined part of the body of the measurement subject who measures muscle tone. The myoelectric potential measured by the myoelectric potential measuring unit 3 is hereinafter referred to as measured myoelectric potential. The myoelectric potential measuring unit 3 is configured by using a known technique capable of measuring myoelectric potential, such as a myoelectric potential sensor attached to the body of the measurement subject. The myoelectric potential measurement unit 3 sends the measured myoelectric potential to the abnormal muscle tone detection unit 7.

  The myoelectric potential DB 5 stores information on a normal myoelectric potential to be generated when the measurement subject takes a specific posture / motion and measures the myoelectric potential of a predetermined part of the body. Specifically, the maximum value of the amplitude (change from the baseline) of the normal myoelectric potential that should be generated in a predetermined part of the subject's body when the subject takes any posture / motion Is stored. This is because the maximum value of the normal myoelectric potential amplitude varies depending on the posture and movement of the measurement subject. In other words, the myoelectric potential DB 5 stores a conversion table from arbitrary postures / motions of the measurement subject to the maximum value of the amplitude of the normal myoelectric potential to be generated at the predetermined site. Such normal myoelectric potential information is obtained by, for example, measuring in advance the myoelectric potential of a person who has not developed abnormal muscle tone due to illness or psychological factors, and storing it in the myoelectric potential DB 5.

  The myoelectric potential estimation unit 6 estimates the myoelectric potential to be generated in the posture / motion of the measurement subject determined by the posture / motion information determination unit 4 from the information stored in the myoelectric potential DB 5. That is, the sent posture / motion information is converted into information on the maximum value of the normal myoelectric potential amplitude to be generated. Hereinafter, the maximum value of the amplitude of the myoelectric potential estimated by the myoelectric potential estimation unit 6 is referred to as an estimated myoelectric potential. The myoelectric potential estimation unit 6 sends the estimated myoelectric potential to the abnormal muscle tone detection unit 7.

  The abnormal muscle tone detection unit 7 compares the measured myoelectric potential measured by the myoelectric potential measurement unit 3 with the estimated myoelectric potential estimated by the myoelectric potential estimation unit 6 at the same time, thereby determining the muscle of the measurement subject. Detect tension abnormalities. The same time here will be described in detail later with reference to a flowchart. The time when the measured myoelectric potential is measured and the time when the posture / motion information acquisition unit 2 acquires the posture / motion information are called the same time. Meaning. Specifically, the abnormal muscle tone detection unit 7 detects an abnormality of muscle tone when the actually measured myoelectric potential exceeds the estimated myoelectric potential (the maximum value of the amplitude of the normal myoelectric potential to be generated).

  When the abnormal muscle tone detection unit 7 detects that the muscle tone is abnormal, the abnormal muscle tone display unit 8 displays the abnormal muscle tone to the measurement subject. For example, the abnormal muscle tension display unit 8 displays abnormal muscle tension to the measurement subject by presentation using an image or text on a screen such as a display, presentation by sound such as an alarm, or presentation using light such as a lamp. . Specifically, for example, a text such as “Abnormal muscle tone is detected. Please relax.” Is displayed on the screen of the display.

  FIG. 2 is a flowchart showing an example of the operation of the muscle tone measuring system according to the first embodiment. Hereinafter, the operation of the muscle tone measuring device 1 at the time of actual muscle tone measurement in the first embodiment will be described with reference to FIGS. 1 and 2.

The posture / motion information acquisition unit 2 acquires posture / motion information of the measurement subject who measures muscle tone (step S101), and sends the posture / motion information to the posture / motion information determination unit 4. Next, the myoelectric potential measurement unit 3 measures the myoelectric potential (measured myoelectric potential) generated at a predetermined part of the body of the measurement subject who measures muscle tone (step S102). At that time, the actual myoelectric potential value at the time of acquisition of posture / motion information and the actual myoelectric potential measured by the myoelectric potential measuring unit 3 are compared so that the actually measured myoelectric potential and the estimated myoelectric potential can be compared in substantially the same time later. Steps S101 and S102 are performed at a time difference that does not substantially change from the value. The myoelectric potential measurement unit 3 sends the measured actual myoelectric potential to the abnormal muscle tone detection unit 7. Specifically, for example, information that the myoelectric potential of X ₁ (mV) is measured is sent.

The posture / motion information discriminating unit 4 discriminates the sent posture / motion information (step S103) and sends it to the myoelectric potential estimation unit 6. Specifically, for example, it is determined that the posture / motion information sent is a posture / motion of right arm shoulder joint Y ₁ ° flexion, and is sent to the myoelectric potential estimation unit 6. The myoelectric potential estimation unit 6 receives the discriminated posture / motion information, and reads information necessary for estimating (that is, converting) the myoelectric potential from the posture / motion information from the myoelectric potential DB 5 (step S104). As described above, the myoelectric potential DB 5 stores information on the maximum value of the normal myoelectric potential amplitude to be generated when the measurement subject takes an arbitrary posture / motion. That is, the information read from the myoelectric potential DB 5 is information on the maximum value of the amplitude of the normal myoelectric potential to be generated based on the determined posture / motion information. Specifically, for example, when the determined posture / motion information is information on the right arm shoulder joint Y ₁ ° flexion, information on the maximum value of the normal myoelectric potential amplitude to be generated is read out as Z ₁ (mV).

The myoelectric potential estimation unit 6 estimates myoelectric potential from the read myoelectric potential information (step S105), and sends the estimated myoelectric potential to the abnormal myotonic detection unit 7. Specifically, for example, the estimated myoelectric potential sends information of Z ₁ (mV).

The abnormal muscle tone detection unit 7 compares the sent measured myoelectric potential with the estimated myoelectric potential (step S106). At that time, it is determined whether the measured myoelectric potential exceeds the estimated myoelectric potential (step S107). Specifically, for example, it is determined whether or not the measured myoelectric potential X ₁ (mV) exceeds the estimated myoelectric potential Z ₁ (mV). When the measured myoelectric potential exceeds the estimated myoelectric potential (step S107, YES), the abnormal muscle tone detection unit 7 sets abnormal muscle tone (step S108), and abnormal muscle tone information is displayed in the abnormal muscle tone display unit 8. send. The abnormal muscle tone display unit 8 displays the sent abnormal muscle tone information (step S109). Thereafter, the process returns to step S101, and the muscle tone is continuously measured. On the other hand, when the measured myoelectric potential does not exceed the estimated myoelectric potential (NO in step S107), the abnormal myotonicity detection unit 7 sets normal muscle tone (step S110), and then returns to step S101 and continuously. Measure muscle tone.

  According to the first embodiment, since the myoelectric potential is estimated based on the posture of the measurement subject and the abnormal muscle tone is detected, the abnormal muscle is detected regardless of the posture and / or movement of the measurement subject. Tension can be detected. That is, there is no need for a third party such as a doctor or an inspector to check the posture of the person being measured, and muscle tension can be measured on a daily basis for a long time.

  Furthermore, since the muscle tone measuring device 1 according to the first embodiment includes the abnormal muscle tone display unit 8, when abnormal muscle tone is detected, the abnormal muscle tone is presented to the measurement subject and the muscle tone is alleviated. Etc. can be encouraged.

(Embodiment 2)
The muscle tone measuring apparatus 1 according to the second embodiment does not include the abnormal muscle tone display unit 8, and includes a time measuring unit 9, an actually measured myoelectric potential information storage unit 10, an estimated myoelectric potential information storage unit 11, and muscle tone information. It differs from Embodiment 1 mentioned above by the point provided with the memory | storage part 12. FIG. Hereinafter, parts different from the first embodiment will be described in detail.

  FIG. 3 is a block diagram illustrating a configuration example of the muscle tone measuring device according to the second embodiment of the present invention. In the second embodiment, the muscle tone measuring apparatus 1 includes a posture / motion information acquisition unit 2, a myoelectric potential measurement unit 3, a posture / motion information determination unit 4, a myoelectric potential DB 5, and a myoelectric potential estimation unit 6. The abnormal muscle tone detection unit 7, the timing unit 9, the measured myoelectric potential information storage unit 10, the estimated myoelectric potential information storage unit 11, and the muscle tone information storage unit 12 are provided. Details of the muscle tone measuring device 1, posture / motion information acquisition unit 2, myoelectric potential measurement unit 3, posture / motion information determination unit 4, myoelectric potential DB 5, myoelectric potential estimation unit 6, and abnormal muscle tone detection unit 7 Although it is substantially the same as that of form 1, the different part is described below.

  As in the first embodiment, the muscle tone measuring device 1 may be configured as a single unit as the muscle tone measuring device 1 or may be configured from two or more devices as long as at least each of the components described above is included. Absent. In particular, the second embodiment will be described in detail later with reference to FIG. 4 to FIG. 6, but the muscle tone measurement system includes a myoelectric potential measurement system, a myoelectric potential estimation system, and an abnormal muscle tone detection system. is doing. Therefore, for example, you may comprise as three apparatuses which have each system.

  The timer unit 9 measures the time when the myoelectric potential is measured by the myoelectric potential measuring unit 3 (hereinafter, myoelectric potential measuring time) and the time when the posture / motion information acquisition unit 2 acquires the posture / motion information of the person to be measured, The time when the measurer takes a specific posture / motion (hereinafter, posture / motion acquisition time) is measured.

  The myoelectric potential measuring unit 3 is substantially the same as that of the first embodiment, but sends information on the measured myoelectric potential including information on the measured myoelectric potential measurement time to the actually measured myoelectric potential information storage unit 10. That is, information on the measured myoelectric potential accompanied by a time stamp is sent to the measured myoelectric potential information storage unit 10.

  The posture / motion information acquisition unit 2 is substantially the same as in the first embodiment, but sends posture / motion information including information on the measured posture / motion acquisition time to the posture / motion information determination unit 4. The posture / motion information determination unit 4 sends the determined posture / motion information (including information on the posture / motion acquisition time) to the myoelectric potential estimation unit 6. The myoelectric potential estimation unit 6 reads necessary information from the myoelectric potential DB 5 as in the first embodiment, and sends the estimated myoelectric potential to the estimated myoelectric potential information storage unit 11. At that time, the myoelectric potential estimation unit 6 also sends the posture / motion acquisition time information to the estimated myoelectric potential information storage unit 11. That is, information on the estimated myoelectric potential accompanied by a time stamp is sent to the estimated myoelectric potential information storage unit 11.

  The measured myoelectric potential information storage unit 10 temporarily stores information on the measured myoelectric potential accompanied by the time stamp sent from the myoelectric potential measuring unit 3. Similarly, the estimated myoelectric potential information storage unit 11 temporarily stores information on the estimated myoelectric potential accompanied by the time stamp sent from the myoelectric potential estimation unit 6.

  The abnormal myotonicity detection unit 7 reads out the measured myoelectric potential information and the estimated myoelectric potential information at the same time from the measured myoelectric potential information storage unit 10 and the estimated myoelectric potential information storage unit 11 and compares them to determine the muscle tone. Detect anomalies. The specific detection method is the same as in the first embodiment. The abnormal muscle tone detection unit 7 sends the read information on the measured myoelectric potential, information on the estimated myoelectric potential, and information on the detected abnormal or normal muscle tone to the muscle tone information storage unit 12. The abnormal or normal muscle tone information refers to information such as a time zone detected as abnormal or normal muscle tone, for example. The muscle tone information storage unit 12 sequentially stores information on the actually measured myoelectric potential, information on the estimated myoelectric potential, information on the detected abnormal or normal muscle tone, and the like.

  4 to 6 are flowcharts illustrating an example of the operation of the muscle tone measurement system according to the second embodiment. Hereinafter, the operation of the muscle tone measuring device 1 at the time of actual muscle tone measurement in the second embodiment will be described with reference to FIGS. 4 to 6.

FIG. 4 is a flowchart showing an example of the operation of the myoelectric potential measurement system according to the second embodiment. The myoelectric potential measurement unit 3 measures the myoelectric potential (measured myoelectric potential) generated at a predetermined part of the body of the measurement subject who measures muscle tone (step S211). At that time, since the myoelectric potential measurement time is measured by the timer unit 9, the time stamp is attached to the information of the actually measured myoelectric potential. The myoelectric potential measurement unit 3 sends the measured actual myoelectric potential information to the actual measurement myoelectric potential information storage unit 10. Specifically, for example, information indicating that the myoelectric potential of X ₂ (mV) is measured at what hour, minute, and second is sent. The measured myoelectric potential information storage unit 10 temporarily stores information on the measured myoelectric potential accompanied by a time stamp (step S212). Thereafter, the process returns to step S211 to continuously measure myoelectric potential.

  FIG. 5 is a flowchart showing an example of the operation of the myoelectric potential estimation system according to the second embodiment. The posture / motion information acquisition unit 2 acquires posture / motion information of the measurement subject who measures muscle tone (step S221). At this time, since the posture / motion acquisition time is measured by the time measuring unit 9, a time stamp is attached to the posture / motion information. The posture / motion information acquisition unit 2 sends the posture / motion information to the posture / motion information determination unit 4.

The posture / motion information discriminating unit 4 discriminates the sent posture / motion information (step S222) and sends it to the myoelectric potential estimation unit 6. At this time, the posture / motion information sent to the myoelectric potential estimation unit 6 is also accompanied by a time stamp of the posture / motion acquisition time. Specifically, for example, the posture / motion information of right arm shoulder joint Y ₂ ° flexion is sent to the myoelectric potential estimation unit 6 at what hour, minute, and second. The myoelectric potential estimation unit 6 receives the determined posture / motion information, and reads information necessary for estimating (ie, converting) myoelectric potential from the posture / motion information from the myoelectric potential DB 5 (step S223). At this time, the information read from the myoelectric potential DB 5 is information on the maximum value of the amplitude of the normal myoelectric potential to be generated based on the determined posture / motion information as in the first embodiment. Specifically, for example, when the determined posture / motion information is information on the right arm shoulder joint Y ₂ ° flexion, information on Z ₂ (mV) is read as the maximum value of the normal myoelectric potential amplitude to be generated.

The myoelectric potential estimation unit 6 estimates myoelectric potential from the read myoelectric potential information (step S224), and sends the estimated myoelectric potential information to the estimated myoelectric potential information storage unit 11. At this time, information on the time stamp of the posture / motion acquisition time is also sent. Specifically, for example, information indicating Z ₂ (mV) is sent for an estimated myoelectric potential of what hour, minute, and second. The estimated myoelectric potential information storage unit 11 temporarily stores information on the estimated myoelectric potential accompanied by a time stamp (step S225). Then, it returns to step S221 and myoelectric potential estimation is performed continuously.

FIG. 6 is a flowchart illustrating an example of the operation of the abnormal muscle tone detection system according to the second embodiment. The abnormal myotonic detection unit 7 reads the information on the measured myoelectric potential or the information on the estimated myoelectric potential, each accompanied by a time stamp, from the measured myoelectric potential information storage unit 10 and the estimated myoelectric potential information storage unit 11 (step S231). ). Next, the measured myoelectric potential and the estimated myoelectric potential at the read time are compared (step S232). At that time, it is determined whether the measured myoelectric potential exceeds the estimated myoelectric potential (step S233). Specifically, for example, it is determined at what hour and minute and second whether the measured myoelectric potential X ₂ (mV) exceeds the estimated myoelectric potential Z ₂ (mV).

  When the measured myoelectric potential exceeds the estimated myoelectric potential (step S233, YES), the abnormal muscle tone detecting unit 7 sets abnormal muscle tone (step S234), information on the measured myoelectric potential, information on the estimated myoelectric potential, and The abnormal muscle tone information is sent to the muscle tone information storage unit 12. On the other hand, when the measured myoelectric potential does not exceed the estimated myoelectric potential (step S233, NO), the abnormal myotonia detection unit 7 sets normal muscle tone (step S235), and the information of the actual myoelectric potential and the estimated myoelectric potential Information and normal muscle tone information are sent to the muscle tone information storage unit 12.

  The muscle tone information storage unit 12 stores the information on the actually measured myoelectric potential, the information on the estimated myoelectric potential, and the information on the abnormal or normal muscle tone (Step S236). Thereafter, the process returns to step S231, and abnormal muscle tone detection is continuously performed (at a time stamp at another time).

  According to the second embodiment, since the myoelectric potential is estimated based on the posture of the measurement subject and the abnormal muscle tone is detected, the abnormal muscle is detected regardless of the posture and / or movement of the measurement subject. Tension can be detected. That is, there is no need for a third party such as a doctor or an inspector to check the posture of the person being measured, and muscle tension can be measured on a daily basis for a long time.

  In particular, according to the second embodiment, since the muscle tension information storage unit 12 is provided, the measurement subject wears the muscle tension measuring device 1 according to the second embodiment continuously for a long time in daily life. Later, it can be confirmed in which time zone the abnormal muscle tone is detected. That is, by comparing the myoelectric potential measurement time or the information such as the posture / motion acquisition time, posture / motion, etc., it is possible to know when the muscle tone abnormality occurs.

In the second embodiment, the muscle tone information storage unit 12 is configured to store the information on the measured myoelectric potential, the information on the estimated myoelectric potential, and the information on the abnormal or normal muscle tone, but also stores other information. The muscle tone measuring device 1 and the muscle tone information storage unit 12 may be configured. For example, it may be configured to store posture / motion information (specifically, for example, information indicating that the right arm / shoulder joint Y ₂ ° was bent in what hour / minute / second) with a time stamp attached thereto. . Moreover, you may comprise so that only the information of abnormal muscle tone (time etc. when abnormal muscle tone was detected) may be memorize | stored.

  In the first and second embodiments, when the abnormal muscle tone detection unit 7 determines whether or not abnormal muscle tone, the determination is made based on whether or not the measured myoelectric potential exceeds the estimated myoelectric potential (maximum value of amplitude). However, any determination method may be used as long as abnormal muscle tone can be detected by comparing the measured and estimated myoelectric potentials. For example, when data of an estimated myoelectric potential (for example, X (mV) to Y (mV)) having a certain range is stored in the myoelectric potential DB 5 in advance, the measured myoelectric potential outside the range is measured. In some cases, abnormal muscle tone may be detected.

  In addition, comparing the values of the measured myoelectric potential and the estimated myoelectric potential, even when comparing the values of each myoelectric potential at a certain time for a certain period of time, It doesn't matter.

  Further, in the first and second embodiments, the body part of the measurement subject for measuring the generated myoelectric potential is assumed to be a predetermined part. This is because the normal myoelectric potential may vary depending on the body part where the myoelectric potential is measured. However, for example, myoelectric potential information on a plurality of desired body parts is stored in the myoelectric potential DB 5 so that a body part for measuring myoelectric potential can be input from the outside by a panel operation of a display or the like. Then, the muscle tone measuring device 1 according to the present invention can be used in various parts of the body of the person to be measured.

  In the first and second embodiments, the muscle tension measuring device 1 having various components such as the abnormal muscle tone display unit 8 or the muscle tone information storage unit 12 has been described, but at least the posture / motion information acquisition unit 2, muscle Any configuration may be used as long as it includes the potential measurement unit 3, the posture / motion information determination unit 4, the myoelectric potential DB 5, the myoelectric potential estimation unit 6, and the abnormal muscle tone detection unit 7. For example, in the first embodiment shown in FIG. 1, the abnormal muscle tone display unit 8 may be used as the muscle tone information storage unit 12, or the abnormal muscle tone display unit 8 and the muscle tone information storage unit 12 may be combined. .

  The operation of the embodiment of the present invention will be described below using specific examples.

(Specific example 1)
This specific example 1 uses the muscle tension measuring device 1 according to the present invention for raising the front part of the upper arm (the posture and movement of the person to be measured), and the front part of the deltoid muscle of the right arm (the body that measures the myoelectric potential). It is a specific operation example in the case where the muscle tension of the (part) is measured.

  The anterior deltoid muscle is a muscle used to raise the corresponding upper arm forward. FIG. 7 is a diagram showing a conversion table stored in the myoelectric potential DB according to the first specific example of the present invention and used by the myoelectric potential estimation unit. As shown in FIG. 7, when the shoulder arm flexion angle is low when the upper arm is raised upward (small shoulder joint flexion angle), a small myoelectric potential is estimated, and the upper arm is raised forward (shoulder joint is high). A large myoelectric potential is estimated. FIG. 8 is a diagram illustrating a bending angle of the shoulder joint according to the first specific example. Refer to Non-Patent Document 1 for details of the conversion table shown in FIG. 7 and the relationship between the front part of the deltoid muscle and the elevation of the upper arm.

  FIG. 9 is a diagram illustrating a usage state of the muscle tension measuring device according to the first specific example. The person to be measured wears the myoelectric potential sensor 13 and the acceleration / angular velocity sensor 14. The myoelectric potential sensor 13 is attached at a position shown in FIG. 9 so that the myoelectric potential of the front part of the deltoid muscle can be measured. The acceleration / angular velocity sensor 14 can measure the posture (angle) and motion (angle change amount) of the upper right arm. The acceleration / angular velocity sensor 14 is a known technique relating to measurement of body movement / posture using acceleration and angular velocity sensors. For details of this technology, see Wataru Hashimoto, Yasuyuki Tamura, Haruo Noma, Masahiro Tada, Kiyoshi Kogure “Measurement Method of Upper Arm Range of Motion Using Wireless Accelerometer” http://www.is.oit.ac.jp/~whashimo Refer to /server/~whashimo/Article/Paper/2008WUVR.pdf.

  That is, in this specific example 1, the myoelectric potential sensor 13 that measures the myoelectric potential of the front part of the deltoid muscle of the right arm of the measurement subject functions as the myoelectric potential measurement unit 3 and is attached to the upper right arm of the measurement subject. The acceleration / angular velocity sensor 14 functions as the posture / motion information acquisition unit 2 and the posture / motion information determination unit 4.

  First, the acceleration / angular velocity sensor 14 functioning as the posture / motion information acquisition unit 2 and the posture / motion information determination unit 4 acquires the angle of the upper right arm of the measured person and the amount of change in the angle as posture / motion information. Determined. When acquiring posture / motion information, the time measuring unit 9 attaches a time stamp. FIG. 10 is a diagram illustrating the bending angle of the shoulder joint over time according to the first specific example. The posture / motion information discriminated in this way is sent to the myoelectric potential estimation unit 6.

  The myoelectric potential estimation unit 6 estimates the maximum value of the myoelectric potential amplitude from the posture / motion information shown in FIG. 10 using the conversion table shown in FIG. 7 (stored in the myoelectric potential DB 5). FIG. 11 is a diagram illustrating the maximum value of the myoelectric potential amplitude predicted over time according to the first specific example. That is, the maximum value of the myoelectric potential predicted in this way is an estimated myoelectric potential, and the estimated myoelectric potential is sent to the abnormal muscle tone detecting unit 7.

  On the other hand, the myoelectric potential sensor 13 functioning as the myoelectric potential measuring unit 3 measures the myoelectric potential at the front part of the deltoid muscle of the right arm of the measurement subject. The measured myoelectric potential is time-stamped by the timer 9. FIG. 12 is a diagram illustrating myoelectric potentials measured by the myoelectric potential sensor over time according to the first specific example. The measured myoelectric potential measured in this way is sent to the abnormal muscle tone detector 7.

  The abnormal myotonic detection unit 7 includes the measured myoelectric potential generated in the front part of the deltoid muscle of the right arm of the measurement subject and the acceleration / angular velocity sensor 14 (posture / motion) sent from the myoelectric sensor 13 (myoelectric potential measuring unit 3). Based on the information of the information acquisition unit 2 and the posture / motion information determination unit 4), the myoelectric potential of the front part of the deltoid muscle of the right arm of the measurement subject sent from the myoelectric potential estimation unit 6 is compared with the estimated myoelectric potential. When the measured myoelectric potential exceeds the estimated myoelectric potential, the myoelectric potential at the front part of the deltoid muscle of the right arm is detected as abnormal muscle tone.

  When the actually measured myoelectric potential shown in FIG. 12 is compared with the estimated myoelectric potential shown in FIG. 11, the actually measured myoelectric potential exceeds the estimated myoelectric potential in the time period from tA to tB, and abnormal muscle tone is detected. The time zone in which such abnormal muscle tone is detected, the bending angle of the shoulder joint in which abnormal muscle tone is detected, etc. (abnormal muscle tone detection information) are stored in the muscle tone information storage unit 12. Further, the measured myoelectric potential data (measured myoelectric potential information) shown in FIG. 12, the shoulder joint flexion angle data (posture / motion information) shown in FIG. 10, and the estimated myoelectric potential data shown in FIG. It is stored in the tension information storage unit 12.

  In this specific example 1, abnormal muscle tone is detected by measuring muscle tone by comparing the measured myoelectric potential of the front part of the deltoid muscle of the right arm with the estimated myoelectric potential estimated from the posture / motion of the upper right arm part. can do. That is, there is no need for a third party such as a doctor or an inspector to check the posture of the person being measured, and muscle tension can be measured on a daily basis for a long time. In addition, after continuous muscle tension measurement, it is possible to confirm at what time and in what posture the muscle tension was performed.

  In the first specific example, the device including the myoelectric potential DB 5, the myoelectric potential estimating unit 6, the abnormal muscle tone detecting unit 7, the time measuring unit 9, and the muscle tone information storing unit 12 is not limited. The potential sensor 13 or the acceleration / angular velocity sensor 14 may include these components, and other devices may include these components. Further, the measured myoelectric potential information storage unit 10 and the estimated myoelectric potential information storage unit 11 that temporarily store the myoelectric potential information described in the second embodiment may be configured in the myoelectric potential sensor 13 or the acceleration / angular velocity sensor 14. I do not care.

(Specific example 2)
In the second specific example, the posture / motion information acquisition unit 2 and the posture / motion information determination unit 4 are configured by a motion capture marker 15 and a motion capture video recording camera 16 instead of the acceleration / angular velocity sensor 14. Is different from Example 1 described above. The posture and motion of the person being measured is the front arm raising, and the body part for measuring the myoelectric potential is the front part of the deltoid muscle of the right arm. The conversion table stored in the myoelectric potential DB 5 according to the second specific example and used by the myoelectric potential estimation unit 6 is the same as that shown in FIG.

  FIG. 13 is a diagram illustrating a usage situation of the muscle tone measuring device according to the second specific example of the present invention. The measurement subject wears the myoelectric potential sensor 13 and the motion capture marker 15. The motion capture marker 15 is recorded by a motion capture video recording camera 16. The myoelectric potential sensor 13 is mounted at a position shown in FIG. 13 so that the myoelectric potential of the front part of the deltoid muscle can be measured. The motion capture marker 15 and the motion capture video recording camera 16 use the motion capture technology, which is a well-known technique for those skilled in the art, to capture the upper right arm from a video obtained by photographing the marker attached to the upper right arm by the measurement subject. Measure posture (angle) and motion (angle change).

  First, by the motion capture marker 15 and the motion capture video recording camera 16 that function as the posture / motion information acquisition unit 2 and the posture / motion information determination unit 4, the angle of the measurement subject and the amount of change in the angle are determined. , Acquired and discriminated as posture / motion information. When acquiring posture / motion information, the time measuring unit 9 attaches a time stamp. The acquired posture / motion discriminating information is the same as that shown in FIG. The posture / motion information discriminated in this way is sent to the myoelectric potential estimation unit 6. The myoelectric potential estimation unit 6 estimates the maximum value of the myoelectric potential amplitude from the posture / motion information shown in FIG. 10 using the conversion table shown in FIG. The predicted maximum value of the amplitude of the myoelectric potential, that is, the estimated myoelectric potential, is the same as in FIG. The estimated myoelectric potential is sent to the abnormal muscle tone detector 7.

  On the other hand, the myoelectric potential sensor 13 functioning as the myoelectric potential measuring unit 3 measures the myoelectric potential at the front part of the deltoid muscle of the right arm of the measurement subject. The measured myoelectric potential is time-stamped by the timer 9. The measured myoelectric potential measured is the same as that shown in FIG. The measured myoelectric potential measured in this way is sent to the abnormal muscle tone detector 7.

  The abnormal myotonic detection unit 7 includes the measured myoelectric potential sent from the myoelectric potential sensor 13 (myoelectric potential measurement unit 3), the motion capture marker 15 and the motion capture video recording camera 16 (posture / motion information acquisition unit 2 and Comparison is made with the estimated myoelectric potential obtained from the information of the posture / motion information discriminating unit 4). When the measured myoelectric potential exceeds the estimated myoelectric potential, the myoelectric potential at the front part of the deltoid muscle of the right arm is detected as abnormal muscle tone. The detection of abnormal muscle tone and the data stored in the muscle tone information storage unit 12 are the same as in the first specific example.

  In the second specific example, abnormal muscle tone is detected by measuring muscle tone by comparing the measured myoelectric potential of the front part of the deltoid muscle of the right arm with the estimated myoelectric potential estimated from the posture / motion of the upper right arm part. can do. That is, there is no need for a third party such as a doctor or an inspector to check the posture of the person being measured, and muscle tension can be measured on a daily basis for a long time. In addition, after continuous muscle tension measurement, it is possible to confirm at what time and in what posture the muscle tension was performed.

  In the second specific example, the device including the myoelectric potential DB 5, the myoelectric potential estimating unit 6, the abnormal muscle tone detecting unit 7, the time measuring unit 9, and the muscle tone information storing unit 12 is not limited. The potential sensor 13, the motion capture marker 15, or the motion capture moving image recording camera 16 may include these components, and other devices may include these components. Further, the measured myoelectric potential information storage unit 10 and the estimated myoelectric potential information storage unit 11 that temporarily store myoelectric potential information described in the second embodiment are configured in the myoelectric potential sensor 13 or the motion capture video recording camera 16. It doesn't matter.

  FIG. 14 is a block diagram showing an example of a hardware configuration of the muscle tone measuring device according to the present invention. As shown in FIG. 14, the muscle tone measuring device 1 includes a control unit 21, a main storage unit 22, an external storage unit 23, an input unit 24, a display unit 25, and a transmission / reception unit 26. The main storage unit 22, the external storage unit 23, the input unit 24, the display unit 25, and the transmission / reception unit 26 are all connected to the control unit 21 via the internal bus 20.

  The control unit 21 includes a CPU (Central Processing Unit) and the like, and executes the processing of the above-described muscle tension measuring device 1 according to the muscle tension measuring program 30 stored in the external storage unit 23.

  The main storage unit 22 is composed of a RAM (Random-Access Memory) or the like, loads a muscle tension measurement program 30 stored in the external storage unit 23, and is used as a work area of the control unit 21.

  The external storage unit 23 includes a non-volatile memory such as a flash memory, a hard disk, a DVD-RAM (Digital Versatile Disc Random-Access Memory), a DVD-RW (Digital Versatile Disc ReWritable), etc. A muscle tone measurement program 30 to be performed is stored in advance, and data stored in the program is supplied to the control unit 21 in accordance with an instruction from the control unit 21, and the data supplied from the control unit 21 is stored.

  The input unit 24 connects a sensor that acquires myoelectric potential or posture / motion, a camera, or the like, and inputs those signals. The control unit 21 acquires myoelectric potential information and the like of the measurement subject using signals from the sensors and the like connected to the input unit 24. The input unit 24 supplies a signal from a sensor or the like for acquiring myoelectric potential or posture / motion to the control unit 21 as data that can be easily calculated.

  The display unit 25 includes, for example, a circuit that drives an image display unit such as a lamp, an LED (Light Emitting Diode), or a CRT (Cathode Ray Tube) or an LCD (Liquid Crystal Display). Abnormal muscle tone information to the person. The display unit 25 also includes, for example, a sound signal source and an amplifier. An acoustic output device such as a buzzer or a speaker may be connected to output abnormal muscle tone information to the measurement subject by sound or voice.

  The transmitter / receiver 26 includes a wireless transmitter / receiver, a wireless modem or a network terminating device, and a serial interface or a LAN (Local Area Network) interface connected thereto. For example, myoelectric potential information or the like is transmitted from the information terminal worn by the person to be measured to the other information terminals constituting the muscle tension measuring device 1 of the present invention via the transmission / reception unit 26, or the muscle is transmitted to the information terminal. Display potential information and so on.

  The processing of each part of the muscle tone measuring device 1 shown in FIG. 1 or FIG. 3 includes a muscle tension measuring program 30 including a control unit 21, a main storage unit 22, an external storage unit 23, an input unit 24, a display unit 25, and a transmission / reception unit. 26 and the like are used as resources.

  Other suitable modifications of the present invention include the following configurations.

About the muscle tone measuring device according to the first aspect of the present invention,
Preferably, the muscle tone measuring device includes at least information on the measured myoelectric potential measured by the myoelectric potential measuring unit, information on the estimated myoelectric potential estimated by the myoelectric potential estimating unit, and the abnormal myotonicity. It is characterized by comprising muscle tone information storage means for storing information on abnormal muscle tone detected by the detection means.

More preferably, the information on the normal myoelectric potential includes information on the maximum value of the amplitude of the normal myoelectric potential to be generated,
The estimated myoelectric potential is a maximum value of the amplitude of the normal myoelectric potential to be generated,
The abnormal myotonicity detection means, when the measured myoelectric potential measured by the myoelectric potential measuring means exceeds the maximum value of the amplitude of the normal myoelectric potential to be generated, which is the estimated myoelectric potential, It is characterized by detecting abnormalities of

  Preferably, the posture / motion information acquisition unit and the posture / motion information determination unit use an acceleration / angular velocity sensor or a motion capture.

About the muscle tone measuring method according to the second aspect of the present invention,
Preferably, the muscle tone measuring method includes at least information of the measured myoelectric potential measured by the myoelectric potential measuring step, information of the estimated myoelectric potential estimated by the myoelectric potential estimating step, and the abnormal myotonicity. A muscle tone information storage step for storing information on abnormal muscle tone detected by the detection step is provided.

More preferably, the information on the normal myoelectric potential includes information on the maximum value of the amplitude of the normal myoelectric potential to be generated,
The estimated myoelectric potential is a maximum value of the amplitude of the normal myoelectric potential to be generated,
In the abnormal myotonic detection step, when the actually measured myoelectric potential measured in the myoelectric potential measuring step exceeds the maximum value of the amplitude of the normal myoelectric potential to be generated, which is the estimated myoelectric potential, It is characterized by detecting abnormalities of

  Preferably, the posture / motion information acquisition step and the posture / motion information determination step use an acceleration / angular velocity sensor or a motion capture.

  In addition, the above-described hardware configuration and flowchart are examples, and can be arbitrarily changed and modified.

  A center for measuring muscle tension, which includes a posture / motion information acquisition unit 2, a myoelectric potential measurement unit 3, a posture / motion information determination unit 4, a myoelectric potential DB 5, a myoelectric potential estimation unit 6, an abnormal muscle tone detection unit 7, and the like This part can be realized by using a normal computer system without depending on a dedicated system. For example, a computer program for executing the above operation is stored and distributed in a computer-readable recording medium (flexible disk, CD-ROM, DVD-ROM, etc.), and the computer program is installed in the computer. Thus, the muscle tone measuring device 1 that executes the above-described processing may be configured. Alternatively, the muscle tension measuring device 1 may be configured by storing the computer program in a storage device included in a server device on a communication network such as the Internet and downloading the computer program by a normal computer system.

  When the muscle tension measuring device 1 is realized by sharing an OS (operating system) and an application program, or by cooperation between the OS and the application program, only the application program portion is stored in a recording medium or a storage device. May be.

  It is also possible to superimpose a computer program on a carrier wave and distribute it via a communication network. For example, the computer program may be posted on a bulletin board (BBS, Bulletin Board System) on a communication network, and the computer program distributed via the network. The computer program may be started and executed in the same manner as other application programs under the control of the OS, so that the above-described processing may be executed.

  According to the present invention, it is possible to detect abnormalities in muscle tone that occur during tension due to illness or psychological (mental) factors, regardless of the posture and / or movement of the subject.

DESCRIPTION OF SYMBOLS 1 Muscle tension measuring device 2 Posture / motion information acquisition part 3 Myoelectric potential measurement part 4 Posture / motion information discrimination part 5 Myoelectric potential database 6 Myoelectric potential estimation part 7 Abnormal muscle tension detection part 8 Abnormal muscle tension display part 9 Timekeeping part 10 Actual measurement Myoelectric potential information storage unit 11 Estimated myoelectric potential information storage unit 12 Muscle tone information storage unit 13 Myoelectric potential sensor 14 Acceleration / angular velocity sensor 15 Motion capture marker 16 Motion capture moving image recording camera 21 Control unit 22 Main storage unit 23 External storage unit 24 Input unit 25 Display unit 26 Transmission / reception unit 30 Muscle tension measurement program

Claims (9)

A myoelectric potential measuring means for measuring myoelectric potential generated in the body of the measurement subject;
Posture / motion information acquisition means for acquiring posture / motion information which is information of the measurement subject's posture and / or motion;
Posture / motion information discriminating means for discriminating the posture and / or motion of the person to be measured based on the posture / motion information;
Posture / motion information discrimination based on information about normal myopotentials to be generated when a measurement subject takes a specific posture and / or motion and measures a myoelectric potential of a specific part of the body. Myoelectric potential estimation means for estimating myoelectric potential to be generated in the posture and / or movement of the measurement subject determined by the means;
By comparing the measured myoelectric potential measured by the myoelectric potential measuring means with the estimated myoelectric potential to be generated estimated by the myoelectric potential estimating means at the same time, the abnormality of the muscle tone of the measurement subject is determined. Abnormal muscle tone detecting means for detecting;
A muscle tone measuring device comprising:   The muscle tone measuring device includes at least the information on the measured myoelectric potential measured by the myoelectric potential measuring unit, the information on the estimated myoelectric potential estimated by the myoelectric potential estimating unit, and the abnormal myotonic detection unit. The muscle tone measuring device according to claim 1, further comprising muscle tone information storage means for storing information on the detected abnormal muscle tone. The information on the normal myoelectric potential includes information on the maximum value of the amplitude of the normal myoelectric potential to be generated,
The estimated myoelectric potential is a maximum value of the amplitude of the normal myoelectric potential to be generated,
The abnormal myotonicity detection means, when the measured myoelectric potential measured by the myoelectric potential measuring means exceeds the maximum value of the amplitude of the normal myoelectric potential to be generated, which is the estimated myoelectric potential, 3. The muscle tone measuring device according to claim 1, wherein an abnormality is detected.   The muscle tension measuring device according to any one of claims 1 to 3, wherein the posture / motion information acquisition unit and the posture / motion information determination unit use an acceleration / angular velocity sensor or a motion capture. . A myoelectric potential measuring step for measuring the myoelectric potential generated in the body of the measurement subject;
Posture / motion information acquisition step for acquiring posture / motion information that is information on the posture and / or motion of the measurement subject;
A posture / motion information determining step for determining what posture and / or motion the measurement subject is based on the posture / motion information;
Posture / motion information discrimination based on information about normal myopotentials to be generated when a measurement subject takes a specific posture and / or motion and measures a myoelectric potential of a specific part of the body. A myoelectric potential estimating step for estimating a myoelectric potential to be generated in the posture and / or movement of the measurement subject determined by the step;
By comparing the actually measured myoelectric potential measured by the myoelectric potential measuring step with the estimated myoelectric potential to be generated estimated by the myoelectric potential estimating step at the same time, the abnormality of the muscle tension of the measurement subject is determined. Detecting abnormal muscle tone to detect;
A method for measuring muscle tone, comprising:   The muscle tone measurement method includes at least information of the measured myoelectric potential measured by the myoelectric potential measurement step, information of the estimated myoelectric potential estimated by the myoelectric potential estimation step, and the abnormal myotonia detection step. 6. The muscle tone measuring method according to claim 5, further comprising a muscle tone information storage step for storing information on the detected abnormal muscle tone. The information on the normal myoelectric potential includes information on the maximum value of the amplitude of the normal myoelectric potential to be generated,
The estimated myoelectric potential is a maximum value of the amplitude of the normal myoelectric potential to be generated,
In the abnormal myotonic detection step, when the actually measured myoelectric potential measured in the myoelectric potential measuring step exceeds the maximum value of the amplitude of the normal myoelectric potential to be generated, which is the estimated myoelectric potential, 7. The method for measuring muscle tone according to claim 5 or 6, wherein an abnormality is detected.   The muscle tension measuring method according to claim 5, wherein the posture / motion information acquisition step and the posture / motion information determination step use an acceleration / angular velocity sensor or a motion capture. . On the computer,
A myoelectric potential measuring step for measuring the myoelectric potential generated in the body of the measurement subject;
Posture / motion information acquisition step for acquiring posture / motion information that is information on the posture and / or motion of the measurement subject;
A posture / motion information determining step for determining what posture and / or motion the measurement subject is based on the posture / motion information;
Posture / motion information discrimination based on information about normal myopotentials to be generated when a measurement subject takes a specific posture and / or motion and measures a myoelectric potential of a specific part of the body. A myoelectric potential estimating step for estimating a myoelectric potential to be generated in the posture and / or movement of the measurement subject determined by the step;
By comparing the actually measured myoelectric potential measured by the myoelectric potential measuring step with the estimated myoelectric potential to be generated estimated by the myoelectric potential estimating step at the same time, the abnormality of the muscle tension of the measurement subject is determined. Detecting abnormal muscle tone to detect;
A muscle tone measurement program characterized by causing the

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