WO2018159731A1 - Gait analyzing system - Google Patents

Gait analyzing system Download PDF

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Publication number
WO2018159731A1
WO2018159731A1 PCT/JP2018/007679 JP2018007679W WO2018159731A1 WO 2018159731 A1 WO2018159731 A1 WO 2018159731A1 JP 2018007679 W JP2018007679 W JP 2018007679W WO 2018159731 A1 WO2018159731 A1 WO 2018159731A1
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WIPO (PCT)
Prior art keywords
footwear
analysis unit
contact
walking
diagnosis system
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PCT/JP2018/007679
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French (fr)
Japanese (ja)
Inventor
大地 岡部
Original Assignee
株式会社ジャパンヘルスケア
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Publication of WO2018159731A1 publication Critical patent/WO2018159731A1/en

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D1/00—Foot or last measuring devices; Measuring devices for shoe parts
    • A43D1/02—Foot-measuring devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb

Definitions

  • the present invention relates to a system that can analyze walking.
  • the object of the present invention is to provide a walking diagnosis system that can appropriately grasp the walking situation of a subject.
  • the object of the present invention is to provide a walking diagnosis system capable of presenting appropriate advice based on the grasped walking situation of the subject.
  • the present invention is basically based on the knowledge that a walking situation of a subject can be analyzed by analyzing the walking situation from footwear having a sensor, and appropriate advice can be given to each subject. is there.
  • the walking diagnosis system of the present invention is a footwear 1 and 3 corresponding to left and right feet, sensors 5 and 7 attached to the footwear, and footwear that transmits sensing data detected by the sensors 5 and 7 to an external device. And a transmission unit 11 attached thereto.
  • the external device has an analysis unit. This analysis unit uses the sensing data received by the external device, (1) Inclination of the footwear in the left-right direction when each of the left and right feet lands, (2) Time difference between heel contact and toe contact, and (3) Analysis of one or more of the direction of movement when the left and right feet each land and the difference in the orientation of the left and right feet by doing, Evaluate the walking situation of the subject.
  • the analysis part Furthermore, using the sensing data received by the external device, the maximum inclination of the buttocks when each of the left and right feet is separated from the ground is determined, and the subject's kick is evaluated from the maximum inclination of the calculated buttocks. There may be.
  • the sensing data received by the external device may be used to evaluate the subject's rhythm by obtaining a grounding time interval, which is the time interval until the next grounding after the left and right feet are grounded. .
  • the left / right balance of the subject may be evaluated by comparing the contact time intervals of the left and right feet using the sensing data received by the external device.
  • the analysis part Furthermore, using the sensing data received by the external device, (1) Time interval from buttocks contact to toe contact, (2) Interval of time from toe contact to heel-off, Obtain one or more of (3) the time interval from the toes to the toes and (4) the time from the toes to the buttocks. One or both of the left and right balances may be evaluated.
  • the sensing data received by the external device may be used to determine the subject's trip from the change in footwear acceleration and footwear movement, and the number of trips that the subject may have tripped over a predetermined period may be obtained. Good.
  • the walking evaluation score of the subject may be obtained from any one or two or more of the subject's landing, walking stability, kicking out, rhythm, and left / right balance.
  • the external device is A storage unit that records advice information to the subject based on the analysis result of the analysis unit;
  • the walking diagnosis system may further include an output unit that displays advice information to the subject.
  • the present invention can provide a walking diagnosis system that can appropriately grasp the walking situation of a subject.
  • the present invention can provide a walking diagnosis system capable of presenting appropriate advice based on the grasped walking situation of the subject.
  • FIG. 1 is a block diagram of the walking diagnosis system of the present invention.
  • FIG. 2 is a conceptual diagram showing the inclination of the footwear in the left-right direction.
  • FIG. 2A is a diagram illustrating a state in which the heel for the left foot is inclined leftward, there is no inclination, and the heel is inclined rightward.
  • FIG. 2B shows the inclination ( ⁇ ) of the footwear in the left-right direction.
  • FIG. 3 is a conceptual diagram for explaining a time difference between heel contact and toe contact (toe contact).
  • FIG. 3 (a) shows an example of dredging contact
  • FIG. 3 (b) shows an example where landing is performed with good timing.
  • FIG. 4 is a conceptual diagram for explaining a deviation between the traveling direction and the left and right feet when each of the left and right feet lands.
  • FIG. 4A shows that the right foot is inclined outward from the traveling direction (clockwise direction), the right foot is substantially coincident with the traveling direction, and the right foot is inward from the traveling direction (counterclockwise direction). Shows what is tilted.
  • FIG. 4B shows a deviation between the traveling direction and the left and right feet.
  • the direction of the foot may be, for example, a straight line connecting the heel (or the rearmost part of the foot) and the tip of a specific finger (for example, the middle finger).
  • FIG. 5 is a conceptual diagram showing the evaluation of stability.
  • FIG. 5 (a) shows inward (left side) and normal, FIG.
  • FIG. 6 is a conceptual diagram for explaining the maximum inclination of the heel portion when the left and right heel portions are separated from the ground.
  • FIG. 6A shows a desirable kicking out state with a large inclination
  • FIG. 6B is a conceptual diagram of kicking out with a small inclination.
  • FIG. 7 is an example of an output screen of the mobile terminal.
  • FIG. 1 is a block diagram of the walking diagnosis system of the present invention. As shown in FIG. 1, this system transmits footwear 1 and 3 corresponding to left and right feet, sensors 5 and 7 attached to the footwear, and sensing data detected by the sensors 5 and 7 to an external device. And a transmission unit 11 attached to the footwear.
  • An example of the external device is the smartphone 19.
  • the external device may be any device that can receive information from not only the smartphone but also the transmission unit 11 or the smartphone, perform various calculations, and transmit the information.
  • the external device further includes an output unit 17 such as a storage unit and a monitor.
  • footwear 1 and 3 are shoes, leather shoes, high heels, sports shoes, clogs, slippers, sandals, boots, and socks.
  • sensors 5 and 7 attached to footwear are a 6-axis sensor, a (3-axis) gyro sensor, and a (3-axis) acceleration sensor.
  • the 6-axis sensor is a sensor that can detect acceleration, direction, and rotation, and can also calculate a moving distance and a moving speed.
  • Another example of the sensor 5 is a sensor that senses pressure, a geomagnetic sensor, or a GPS (global positioning system) sensor.
  • An example of the transmission unit 11 is an antenna.
  • the transmission unit 11 is connected to the sensors 5 and 7 so that the sensing information can be received from the sensors 5 and 7. And the transmission part 11 transmits the sensing data which received sensing information from the sensors 5 and 7 toward an external device.
  • Sensing data includes the acceleration data and angular velocity data of the subject observed by the sensor according to the type of sensor.
  • the footwear 1 and 3 may be provided with a power source for supplying power to the sensor and the antenna, a switch for switching ON / OFF of the power source, a sensor, the antenna, and a control unit for controlling the power source.
  • An example of an external device is a computer.
  • the computer has an input unit, an output unit, a control unit, a calculation unit, and a storage unit. Then, the control program stored in the storage unit is read, and the control unit issues various commands. Further, the control unit reads various data stored in the storage unit, and causes the calculation unit to perform various calculations using the read data and data input from the input unit. Data obtained by the arithmetic processing performed by the arithmetic unit is appropriately stored in the storage unit and output from the output unit.
  • the input unit is an element for entering various data in the computer. Examples of the input unit are a keyboard, an interface, and an antenna.
  • the control program may be realized by hardware, may be a computer-readable program stored in the storage unit, or may be a computer-readable program recorded on a recording medium such as a CD-ROM. May be.
  • the external device has an analysis unit.
  • This analysis unit uses the sensing data received by the external device, (1) Inclination of the footwear in the left-right direction when each of the left and right feet lands, (2) Time difference between heel contact and toe contact, and (3) Analysis of one or more of the direction of movement when the left and right feet each land and the difference in the orientation of the left and right feet To evaluate the walking situation of the subject. This evaluation is mainly an evaluation of the landing situation of the subject.
  • sensing data includes acceleration and gyro data.
  • the analysis unit analyzes these data, and analyzes that either the left or right footwear touches the ground until the moving speed changes from the lower side to the upper side or when the position of the sensor is low.
  • FIG. 2 is a conceptual diagram showing the inclination of the footwear in the left-right direction.
  • FIG. 2A is a diagram illustrating a state in which the heel for the left foot is inclined leftward, there is no inclination, and the heel is inclined rightward.
  • FIG. 2B shows the inclination ( ⁇ ) of the footwear in the left-right direction.
  • the footwear is shown using high heels. However, footwear is not local to high heels.
  • the horizontal inclination of footwear is defined as 0 ° when the footwear is installed vertically downward.
  • the storage unit stores data on the inclination and evaluation of footwear in the left-right direction and evaluation points.
  • the evaluation and evaluation points are, for example, ⁇ and 100 points when the inclination is 0 to 5 °, ⁇ and 70 points when the inclination is 5 ° to 10 °, and 50 points when the inclination is 10 ° to 15 °.
  • an analysis part reads an evaluation and an evaluation score from a memory
  • the analysis unit may obtain a difference between the leftward inclination and the rightward inclination to obtain the left / right balance of the subject.
  • the storage unit stores evaluation regarding the difference and balance between the inclination to the left and the inclination to the right, and data regarding the evaluation point.
  • the evaluation and evaluation points are, for example, ⁇ and 100 points when the difference is 0 to 5 °, ⁇ and 70 points when the difference is 5 ° to 10 °, and 50 points when the difference is 10 ° to 15 °.
  • the analysis unit obtains the difference between the inclination to the left and the inclination to the right by using data on the inclination to the left and the inclination to the right.
  • the analysis unit reads the evaluation and the evaluation score according to the difference between the inclination in the left direction and the inclination in the right direction from the storage unit. In this way, the analysis unit can obtain a balance (balance at the time of ground contact) based on the inclination to the left and the inclination to the right.
  • the storage unit stores a threshold value regarding a difference between the leftward inclination and the rightward inclination
  • the analysis unit stores the threshold value and the difference between the obtained leftward inclination and the rightward inclination.
  • an alert indicating that the left / right balance is not good may be output.
  • this balance may obtain
  • FIG. 3 is a conceptual diagram for explaining a time difference between heel contact and toe contact (toe contact).
  • FIG. 3 (a) shows an example of dredging contact
  • FIG. 3 (b) shows an example where landing is performed with good timing.
  • the heel contact may be determined as heel contact when the rearmost part of the shoe touches the ground. If the footwear has a heel part such as a high heel, the heel contact will occur when the heel part contacts the ground. You may judge.
  • the toe contact may be the timing at which the front part of the shoe (the part in which the toe is accommodated) first contacts the ground.
  • the time from the state of FIG. 3A to the state of FIG. 3B may be the time difference between the heel contact and the toe contact.
  • the analysis unit grasps that the footwear on either the left or right foot first touched the ground from the data on acceleration or gyro when the footwear on the left or right touches the ground. This can be analyzed, for example, by using data to determine whether a part of the footwear is located near the ground or by determining a change in speed. For example, when the first grounded part is the fingertip part (front half part of the foot), the analysis unit stores the time when the fingertip part of the footwear is grounded in the storage unit. The analysis unit uses the data to analyze that the heel portion of the footwear is grounded. In addition, the analysis unit causes the storage unit to store the time when the heel portion of the footwear contacts the ground.
  • the analysis unit reads the time when the fingertip part of the footwear touches the ground and the time when the heel part of the footing touches the ground stored in the storage unit, and obtains a difference between them, thereby obtaining the heel grounding and the toes. Find the time difference from the ground.
  • the analysis unit stores the obtained time difference between the heel contact and the toe contact in the storage unit.
  • the storage unit stores evaluations and evaluation points based on the time difference between heel contact and toe contact.
  • the analysis unit reads, from the storage unit, evaluations and evaluation points corresponding to the obtained time difference between the heel contact and the toe contact using the data regarding the time difference between the obtained heel contact and the toe contact. In this way, the analysis unit analyzes the balance of walking (whether the time difference between the heel and the toe contact is too large) based on the difference between the heel contact and the toe contact.
  • FIG. 4 illustrates the difference between the direction of travel and the orientation of the left and right feet when each of the left and right feet lands. It is a conceptual diagram for.
  • FIG. 4A shows that the right foot is inclined outward from the traveling direction (clockwise direction), the right foot is substantially coincident with the traveling direction, and the right foot is inward from the traveling direction (counterclockwise direction). Shows what is tilted.
  • FIG. 4B shows a deviation between the traveling direction and the left and right feet.
  • the direction of the foot may be, for example, a straight line connecting the heel (or the rearmost part of the foot) and the tip of a specific finger (for example, the middle finger).
  • the traveling direction can be grasped by a gyro sensor or the like.
  • the analysis unit grasps the traveling direction of each of the left and right footwear from the data on acceleration and gyro when the left and right footwear touches the ground.
  • the analysis unit can analyze heel contact and toe contact as described above.
  • the analysis unit obtains the direction of the footwear (the direction of the footwear at the time of ground contact) from one or both of the heel contact and the toe contact from the data.
  • the analysis unit obtains an angle formed by the obtained traveling direction of the left and right footwear and the direction of the footwear at the time of ground contact (the traveling direction and the angle formed by the footwear).
  • the analysis unit appropriately stores the obtained traveling direction and the angle formed by the footwear in the storage unit.
  • the analysis unit can determine the deviation between the direction of travel when the left and right feet land and the direction of the left and right feet (the angle between the travel direction and the footwear). It should be straight or have an outward angle of 0 ° to 10 ° with respect to the direction of travel. For example, if you land inward for 20 ° or more, walk in the inner crotch, land for 30 ° or more outward. For example, an alert may be output to the subject as a crab crotch walking.
  • the evaluation unit and evaluation points based on the direction of travel and the angle formed by the footwear are stored in the storage unit.
  • the analysis unit reads, from the storage unit, evaluations and evaluation points corresponding to the calculated direction of travel and the angle between the footwear, using data regarding the direction of travel and the angle between the footwear. In this way, the analysis unit analyzes the balance of walking (whether or not the foot can be straightened) based on the direction of travel and the angle formed by the footwear.
  • the analysis unit may store the inclination of the footwear in the left-right direction when each of the left and right feet previously obtained landed in the storage unit a plurality of times.
  • FIG. 5 is a conceptual diagram showing the evaluation of stability.
  • FIG. 5 (a) shows inward (left side) and normal
  • FIG. 5 (b) shows normal and outward fall
  • FIG. 5 (c) shows the wobble.
  • the wobble angle is the same as the inclination of the footwear in the left-right direction described above.
  • storage part memorize
  • the inclination, evaluation and evaluation point of the footwear in the left-right direction may be used as they are.
  • An example of the threshold value for wobble is to be determined when both inward and outward falls are recognized during a certain number of steps.
  • the analysis unit reads, for example, the inclination of the footwear in the left-right direction when each of the left and right feet for a predetermined number of consecutive times has landed.
  • the fluctuation of the tilt is more than a certain threshold on both sides of the infall and the outer fall, it is assumed that there is wobble.
  • the analysis part is also.
  • the number of the slopes exceeding the threshold value and the maximum angle may be obtained to obtain a wobble value.
  • the wobble value is stored in the storage unit. In this way, the balance (stability) of walking is evaluated.
  • the storage unit stores evaluations based on wobble values and evaluation points.
  • the analysis unit reads the evaluation and the evaluation score corresponding to the obtained wobble value from the storage unit, using the data related to the obtained wobble value. In this way, the analysis unit analyzes the balance (stability) of walking based on the wobble value.
  • the analysis unit uses the sensing data received by the external device to determine the maximum inclination of the hips when each of the left and right hips is separated from the ground, and the subject's kicking is determined from the calculated maximum inclination. You may evaluate.
  • the maximum inclination when the left and right heels are separated from the ground means the maximum angle between the back of the footwear and the ground when the left and right heels are separated from the ground.
  • FIG. 6 is a conceptual diagram for explaining the maximum inclination of the heel portion when the left and right heel portions are separated from the ground.
  • FIG. 6A shows a desirable kicking out state with a large inclination
  • FIG. 6B is a conceptual diagram of kicking out with a small inclination.
  • the analysis unit grasps the timing of heel contact and toe contact. The case where the footwear is higher than the footwear position at that timing is when each of the left and right buttock leaves the ground.
  • the analysis unit obtains and stores the inclination of the buttocks using this data. Then, the stored inclination of the buttock is read, the read inclinations of the buttock are compared, and the largest inclination is stored in the storage unit as the maximum inclination of the buttock.
  • the maximum inclination of the buttock may be obtained every time from the toe separation to the buttock contact and stored in the storage unit. In this way, the maximum inclination of the buttocks when the left and right feet are separated from the ground is obtained.
  • the storage unit stores evaluations and evaluation points based on the maximum inclination of the buttocks.
  • the analysis unit reads the evaluation and the evaluation score corresponding to the obtained maximum inclination of the buttock from the storage unit, using the data regarding the determined maximum inclination of the buttock. In this way, the analysis unit analyzes the balance of walking (kicking out) based on the maximum inclination of the buttocks.
  • the evaluation points based on the balance of walking (kicking out) based on the maximum inclination of the buttocks thus obtained are xR4 and xL4 .
  • the angle formed by the traveling direction and the kicking direction can be obtained by the same concept as in FIG. 4, and can be evaluated by the same processing as in FIG.
  • the rhythm analysis unit evaluates the subject's rhythm by using the sensing data received by the external device to determine the contact time interval, which is the time interval from the time when the left and right feet touch the ground until the next contact. May be. This interval can be said to evaluate the timing of each step.
  • the grounding may be a buttock grounding or a toe grounding. As described above, the analysis unit obtains and stores the timing of buttocks contact (toe contact). The analysis unit may obtain the contact time interval using the stored timing of the buttocks contact (toe contact). And the analysis part should just memorize
  • the analysis unit reads the contact time interval at a predetermined number of steps from the storage unit.
  • the storage unit stores statistical values, evaluations based on the statistical values, and evaluation points.
  • the analysis unit reads the evaluation and evaluation score corresponding to the calculated statistical value from the storage unit using the calculated statistical value (eg, dispersion or deviation of the contact time interval). In this way, the analysis unit analyzes the walking balance (rhythm) based on the statistical values.
  • the calculated statistical value eg, dispersion or deviation of the contact time interval
  • the analysis part The left / right balance of the subject may be evaluated by comparing the contact time intervals between the left and right feet using the sensing data received by the external device. This comparison may be obtained, for example, by obtaining an average value of a plurality of contact time interval values obtained as described above, and the analysis unit comparing the left and right average values.
  • the storage unit stores evaluations and evaluation values corresponding to the comparison values (for example, the difference between the average values), and the analysis unit can read the evaluations and evaluation values from the storage unit based on the 13 comparison values obtained. That's fine.
  • the analysis part Furthermore, using the sensing data received by the external device, (1) Time interval from buttocks contact to toe contact, (2) Interval of time from toe contact to heel-off, Obtain one or more of (3) the time interval from the toes to the toes and (4) the time from the toes to the buttocks. One or both of the left and right balances may be evaluated.
  • This can be basically obtained by the analysis unit in the same manner as described above, and the evaluation and the evaluation value can be read from the storage unit. That is, by using the sensing data, the analysis unit can obtain the timing of the buttock grounding, the toe grounding, the heel-off, and the toe-off.
  • the analysis unit stores the obtained timing in the storage unit, reads the stored timing, obtains a time interval by taking the difference, and stores the obtained time interval in the storage unit. Since the storage unit stores evaluations and evaluation points corresponding to the time intervals, the analysis unit can read the evaluations and evaluation points corresponding to the obtained time intervals from the storage unit.
  • the evaluation points can be combined with x R5 , x L5 and x A3 and can be used as different evaluation points, or can be used instead of x R5 , x L5 and x A3 .
  • the analysis unit further uses the sensing data received by the external device to determine the subject's trip from changes in the acceleration of the footwear and changes in the movement of the footwear, and obtains the number of trips that the subject has tripped over a predetermined period It may be.
  • the maximum acceleration in the direction opposite to the advancing direction exceeded the threshold during a certain period of time before each landing on the right and left hips and before landing again, for example, half of the time when the foot was away In this case, it is judged that the legs have collided with each other or the ground and have ruc.
  • the storage unit stores evaluations based on the number of trips and evaluation points.
  • the analysis unit reads the evaluation and the evaluation score corresponding to the obtained number of trips from the storage unit using the data related to the obtained trip count. In this way, the analysis unit analyzes the balance of walking (stumbling) based on the number of trips.
  • the analysis unit may obtain a walking evaluation score of the subject from any one or two or more of the landing, walking stability, kicking out, rhythm, and left / right balance of the subject.
  • the storage unit stores the coefficient of each evaluation item. This factor can be changed.
  • an analysis part reads each evaluation score memorize
  • An analysis part calculates
  • analysis unit can determine the P, for example, as follows.
  • + P a 11 x R1 + a 12 x L1 + a 21 x R2 + a 22 x L2 + a 31 x R3 + a 32 x L3 + a 41 x R4 + a 42 x L4 + a 51 x R5 + a 52 x L5 + a 61 x R6 + a 62 x L6 + A 7 x A1 + a 8 x A2 + a 9 x A3
  • the storage unit stores comments and videos according to the evaluation points of each evaluation item. Then, the analysis unit reads the evaluation points of each evaluation item stored in the storage unit, compares them, and obtains the evaluation item having the lowest value or a predetermined number of evaluation items having the lowest value. The analysis unit reads out comments and moving images corresponding to the evaluation points from the storage unit using the obtained evaluation items and evaluation points, and transmits them to the terminal 19 of the subject.
  • the storage unit may store information (email address) of the terminal 19 of the subject.
  • the external device may be configured to download a stored comment or video in response to a request from the terminal 19 of the subject.
  • test subject's terminal 19 is a mobile terminal such as a mobile phone of the test subject.
  • Another example of the subject's terminal 19 is a computer that the subject can view.
  • FIG. 7 shows an example of the output screen of the mobile terminal.
  • the subject's landing, walking stability, kicking out, rhythm and left / right balance scores are displayed on the chart.
  • a comment corresponding to the measured evaluation or evaluation score is read from the storage unit and displayed on the display unit. This comment is displayed, for example, in order of walking stability, kicking out, rhythm, and left / right balance every day, and one item can be improved per day.
  • the present invention can be used in technical fields such as IoT, for example. Moreover, this invention can also be provided as applications, such as a smart phone.

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Abstract

[Problem] To provide a gait diagnostic system capable of appropriately ascertaining a gait condition of a subject. [Solution] This gait diagnostic system comprises footwear 1, 3 corresponding respectively to left and right feet, sensors 5, 7 attached to the footwear, and a transmitting unit 11 attached to the footwear to transmit sensing data detected by the sensors 5, 7 to an external device. The external device includes an analyzing unit which evaluates the gait condition of the subject by using the sensing data to analyze any one or two or more of an inclination of the footwear to the left or right when each of the left and right feet touches the ground, a time difference between heel ground contact and toe ground contact, and displacement between the direction of progress and the orientations of the left and right feet when each of the left and right feet touch the ground.

Description

歩行分析システムGait analysis system
　本発明は，歩行を分析できるシステムに関する。 The present invention relates to a system that can analyze walking.
　現在の超高齢社会において，高齢者の腰痛，膝痛は大きな問題である。平成23年の厚生労働省の調査によれば，全国の外来受診率の第三位に腰痛(脊柱障害)，第五位に膝痛(関節症)が入っており，変形性膝関節症患者は推定２５３０万人いるといわれ，年間8万人が膝の手術を行っている。この手術は一人あたり約３００万円の費用がかかるため，手術費だけで年間約２４００億円の医療費がかかる計算である。しかし，これらの根本治療は，手術ではなく，その「使い方」にある。慢性的に高い血糖値が糖尿病を引き起こすように，慢性的な「使い方」の悪さが腰痛や膝痛を起こす。ここでいう「使い方」とは，「姿勢」と「歩き方」であり，この歩き方を改善することは，将来的な腰痛・膝痛を減少させる予防医療につながる。 In the current super-aged society, back pain and knee pain are a big problem for the elderly. According to a survey by the Ministry of Health, Labor and Welfare in 2011, low back pain (vertebral column disorder) and knee pain (arthropathy) were ranked third in the outpatient visit rate nationwide, and patients with knee osteoarthritis An estimated 25.3 million people are said to be performing 80,000 knee operations annually. Since this operation costs about 3 million yen per person, the operation cost alone is about 240 billion yen per year. However, these fundamental therapies are not in surgery but in their “how to use”. Just as chronically high blood sugar levels cause diabetes, chronic “unusual” causes back pain and knee pain. “Usage” here refers to “posture” and “how to walk.” Improving this way of walking leads to preventive medicine that reduces future low back pain and knee pain.
　ファッションとしてハイヒールを履く女性は多く，２０１６年7月に実施した２０代～４０代女性２００人を対象としたアンケートでも，週２日以上履く女性は過半数を越えていた（５４．２％）。ハイヒールを履く理由として，「脚が綺麗に見える」（82.4%），「脚が長く見える」（７２．８％），「おしゃれ」（５８．９％）といったことが言われており，自分を素敵に見せるアイテムだという認識がある（２０１４年レキットベンキーザー・ジャパン調べ; １０代～６０代女性でハイヒールの靴を週１回以上履く女性５００名）。しかしながら，ハイヒールにはトラブルがつきものであり，２００人のアンケートでも「足が痛くなる」（８０．１％），「疲れやすい」（５８．２％），「腰が痛くなる」（１１．９％）など，平均して1人あたり３．５４個もの健康問題を抱えていることが分かった。 There are many women who wear high heels as a fashion, and in a survey targeting 200 women in their 20s to 40s conducted in July 2016, more than half (54.2%) were women who wear more than two days a week. The reasons for wearing high heels are “Legs look beautiful” (82.4%), “Legs look long” (72.8%), “Fashion” (58.9%). There is a perception that it is a nice item (according to 2014 Rekit Benkieser Japan; 500 women in their 10s and 60s wearing high heels at least once a week). However, troubles are associated with high heels, and even in a questionnaire of 200 people, “legs hurt” (80.1%), “easy to get tired” (58.2%), “lumbar hurts” (11.9) %), On average, 3.54 health problems per person.
　歩きにくいハイヒールであっても，適切な歩行指導を受けることで，痛みや疲れやすさが改善するため，市場ではハイヒールの歩き方のレッスンや資格があり，動画などを用いた情報サイトなども見られる。しかし，自分の歩き方を客観的に自分で見ることは難しく，歩き方を改善しようと考える人自体が多くない。 Even with high heels that are difficult to walk, receiving appropriate walking instructions improves pain and fatigue, so there are lessons and qualifications for walking on high heels in the market, and information sites such as videos are also available. It is done. However, it is difficult to objectively see how you walk yourself, and there are not many people who want to improve their walking.
　例えば，国際公開ＷＯ２０１６／１３３１５８号パンフレットには，センサ部を有し，外部装置へセンサデータを送信できる履物が記載されている。 For example, International Publication WO2016 / 133158 pamphlet describes footwear that has a sensor unit and can transmit sensor data to an external device.
国際公開ＷＯ２０１６／１３３１５８号パンフレットInternational Publication WO2016 / 133158 Pamphlet
　本発明は，被験者の歩行状況を適切に把握できる歩行診断システムを提供することを目的とする。 The object of the present invention is to provide a walking diagnosis system that can appropriately grasp the walking situation of a subject.
　本発明は，把握した被験者の歩行状況に基づいて，適切なアドバイスを提示できる歩行診断システムを提供することを目的とする。 The object of the present invention is to provide a walking diagnosis system capable of presenting appropriate advice based on the grasped walking situation of the subject.
　本発明は，基本的には，センサを有する履物から歩行状況を分析することで，被験者の歩行の状況を分析し，それにより被験者ごとに適切なアドバイスを行うことができるという知見に基づくものである。 The present invention is basically based on the knowledge that a walking situation of a subject can be analyzed by analyzing the walking situation from footwear having a sensor, and appropriate advice can be given to each subject. is there.
　本発明の歩行診断システムは，左右の足にそれぞれ対応した履物１，３と，履物に取り付けられたセンサ５，７と，センサ５，７により検出されたセンシングデータを外部装置に送信する履物に取り付けられた送信部１１と，を有する。
　そして，外部装置は，解析部を有する。この解析部は，外部装置が受信したセンシングデータを用いて，
　（１）　　左右の足のそれぞれが着地した際の履物の左右方向への傾斜，
　（２）　　踵（かかと）接地と足指接地との時間差，及び
　（３）　　左右の足のそれぞれが着地した際の進行方向と左右の足の向きのずれ，のいずれか又は２つ以上を解析することで，
　被験者の歩行状況を評価する。 The walking diagnosis system of the present invention is a footwear 1 and 3 corresponding to left and right feet, sensors 5 and 7 attached to the footwear, and footwear that transmits sensing data detected by the sensors 5 and 7 to an external device. And a transmission unit 11 attached thereto.
The external device has an analysis unit. This analysis unit uses the sensing data received by the external device,
(1) Inclination of the footwear in the left-right direction when each of the left and right feet lands,
(2) Time difference between heel contact and toe contact, and (3) Analysis of one or more of the direction of movement when the left and right feet each land and the difference in the orientation of the left and right feet by doing,
Evaluate the walking situation of the subject.
　解析部は，
　さらに，外部装置が受信したセンシングデータを用いて，左右の足のそれぞれが地面から離れた際の踵部の最大傾斜を求め，求めた踵部の最大傾斜から被験者の蹴り出しを評価するものであってもよい。 The analysis part
Furthermore, using the sensing data received by the external device, the maximum inclination of the buttocks when each of the left and right feet is separated from the ground is determined, and the subject's kick is evaluated from the maximum inclination of the calculated buttocks. There may be.
　解析部は，
　さらに，外部装置が受信したセンシングデータを用いて，左右の足が接地した後に，次に接地するまでの時間の間隔である接地時間間隔を求め，被験者のリズムを評価するものであってもよい。 The analysis part
In addition, the sensing data received by the external device may be used to evaluate the subject's rhythm by obtaining a grounding time interval, which is the time interval until the next grounding after the left and right feet are grounded. .
　解析部は，
　さらに，外部装置が受信したセンシングデータを用いて，左右の足の接地時間間隔を比較することで，被験者の左右バランスを評価するものであってもよい。 The analysis part
Further, the left / right balance of the subject may be evaluated by comparing the contact time intervals of the left and right feet using the sensing data received by the external device.
　解析部は，
　さらに，外部装置が受信したセンシングデータを用いて，
　（１）　　踵部接地から足指接地までの時間の間隔，
　（２）　　足指接地から踵離地までの時間の間隔，
　（３）　　踵離地から足指離地までの時間の間隔，及び
　（４）　　足指離地から踵部接地までの時間の間隔
　のいずれか１種又は２種以上を求め，被験者のリズム及び左右バランスのいずれか又は両方を評価するものであってもよい。 The analysis part
Furthermore, using the sensing data received by the external device,
(1) Time interval from buttocks contact to toe contact,
(2) Interval of time from toe contact to heel-off,
Obtain one or more of (3) the time interval from the toes to the toes and (4) the time from the toes to the buttocks. One or both of the left and right balances may be evaluated.
　解析部は，
　さらに，外部装置が受信したセンシングデータを用いて，履物の加速度の変化及び履物の動きの変化から被験者のつまずきを求め，所定期間に被験者がつまずいた回数であるつまずき回数を求めるものであってもよい。 The analysis part
Further, the sensing data received by the external device may be used to determine the subject's trip from the change in footwear acceleration and footwear movement, and the number of trips that the subject may have tripped over a predetermined period may be obtained. Good.
　解析部は，
　さらに，被験者の着地，歩行安定性，蹴り出し，リズム及び左右バランスのいずれか１つ又は２つ以上から，被験者の歩行評価点を求めるものであってもよい。 The analysis part
Furthermore, the walking evaluation score of the subject may be obtained from any one or two or more of the subject's landing, walking stability, kicking out, rhythm, and left / right balance.
　外部装置は，
　解析部の解析結果に基づく被験者へのアドバイス情報を記録した記憶部をさらに有し，
　歩行診断システムは，被験者へのアドバイス情報を表示する出力部をさらに有するものであってもよい。 The external device is
A storage unit that records advice information to the subject based on the analysis result of the analysis unit;
The walking diagnosis system may further include an output unit that displays advice information to the subject.
　本発明は，被験者の歩行状況を適切に把握できる歩行診断システムを提供できる。 The present invention can provide a walking diagnosis system that can appropriately grasp the walking situation of a subject.
　本発明は，把握した被験者の歩行状況に基づいて，適切なアドバイスを提示できる歩行診断システムを提供できる。 The present invention can provide a walking diagnosis system capable of presenting appropriate advice based on the grasped walking situation of the subject.
図１は，本発明の歩行診断システムのブロック図である。FIG. 1 is a block diagram of the walking diagnosis system of the present invention. 図２は，履物の左右方向への傾きを示す概念図である。図２（ａ）は，左足用のヒールが左向きに傾いている様子，傾きがない様子，右向きに傾いている様子を示す図である。図２（ｂ）は，履物の左右方向への傾斜（θ）を示す。FIG. 2 is a conceptual diagram showing the inclination of the footwear in the left-right direction. FIG. 2A is a diagram illustrating a state in which the heel for the left foot is inclined leftward, there is no inclination, and the heel is inclined rightward. FIG. 2B shows the inclination (θ) of the footwear in the left-right direction. 図３は，踵（かかと）接地と足指接地（つま先接地）との時間差を説明するための概念図である。図３（ａ）は，踵接地の例を示し，図３（ｂ）は着地がタイミングよくおこなわれた例を示す。FIG. 3 is a conceptual diagram for explaining a time difference between heel contact and toe contact (toe contact). FIG. 3 (a) shows an example of dredging contact, and FIG. 3 (b) shows an example where landing is performed with good timing. 図４は，左右の足のそれぞれが着地した際の進行方向と左右の足の向きのずれを説明するための概念図である。図４（ａ）は，右足が進行方向から外向き方向（時計回り方向）に傾いたもの，右足が進行方向とほぼ一致したもの，及び右足が進行方向から内向き（反時計回り方向）に傾いたものを示す。図４（ｂ）は，進行方向と左右の足の向きのずれを示す。足の方向は，例えば，踵（又は足の一番後ろの部位）と，特定の指（例えば中指）の先端までを結ぶ直線とすればよい。FIG. 4 is a conceptual diagram for explaining a deviation between the traveling direction and the left and right feet when each of the left and right feet lands. FIG. 4A shows that the right foot is inclined outward from the traveling direction (clockwise direction), the right foot is substantially coincident with the traveling direction, and the right foot is inward from the traveling direction (counterclockwise direction). Shows what is tilted. FIG. 4B shows a deviation between the traveling direction and the left and right feet. The direction of the foot may be, for example, a straight line connecting the heel (or the rearmost part of the foot) and the tip of a specific finger (for example, the middle finger). 図５は，安定性の評価を示す概念図である。図５（ａ）は内倒れ（左側）と正常のものを示し，図５（ｂ）は正常と外倒れのものを示し，図５（ｃ）はぐらつきの様子を示す。FIG. 5 is a conceptual diagram showing the evaluation of stability. FIG. 5 (a) shows inward (left side) and normal, FIG. 5 (b) shows normal and outward fall, and FIG. 5 (c) shows the wobble. 図６は，左右の踵部のそれぞれが地面から離れた際の踵部の最大傾斜を説明するための概念図である。図６（ａ）は，傾斜が大きく望ましい蹴りだしの様子を示し，図６（ｂ）は傾斜が小さい蹴り出しの概念図である。FIG. 6 is a conceptual diagram for explaining the maximum inclination of the heel portion when the left and right heel portions are separated from the ground. FIG. 6A shows a desirable kicking out state with a large inclination, and FIG. 6B is a conceptual diagram of kicking out with a small inclination. 図７は，携帯端末の出力画面の例である。FIG. 7 is an example of an output screen of the mobile terminal.
　以下，図面を用いて本発明を実施するための形態について説明する。本発明は，以下に説明する形態に限定されるものではなく，以下の形態から当業者が自明な範囲で適宜修正したものも含む。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below, but includes those appropriately modified by those skilled in the art from the following embodiments.
　図１は，本発明の歩行診断システムのブロック図である。図１に示されるようにこのシステムは，左右の足にそれぞれ対応した履物１，３と，履物に取り付けられたセンサ５，７と，センサ５，７により検出されたセンシングデータを外部装置に送信する履物に取り付けられた送信部１１と，を有する。そして，外部装置の例は，スマートフォン１９である。外部装置は，スマートフォンのみならず，送信部１１又はスマートフォンから情報を受け取り，各種演算を行い，情報を送信できるものであればよい。外部装置は，記憶部とモニタなどの出力部１７をさらに有する。 FIG. 1 is a block diagram of the walking diagnosis system of the present invention. As shown in FIG. 1, this system transmits footwear 1 and 3 corresponding to left and right feet, sensors 5 and 7 attached to the footwear, and sensing data detected by the sensors 5 and 7 to an external device. And a transmission unit 11 attached to the footwear. An example of the external device is the smartphone 19. The external device may be any device that can receive information from not only the smartphone but also the transmission unit 11 or the smartphone, perform various calculations, and transmit the information. The external device further includes an output unit 17 such as a storage unit and a monitor.
　履物１，３の例は，靴，革靴，ハイヒール，運動靴，下駄，スリッパ，サンダル，ブーツ，及び靴下である。 Examples of footwear 1 and 3 are shoes, leather shoes, high heels, sports shoes, clogs, slippers, sandals, boots, and socks.
　履物に取り付けられたセンサ５，７の例は，６軸センサ，（３軸）ジャイロセンサ，及び（３軸）加速度センサである。６軸センサは，加速度，向き，及び回転を検出することができ，さらに移動距離や移動速度も算出できるセンサである。センサ５の別の例は，圧力を感知するセンサ，地磁気センサ，ＧＰＳ（グローバル・ポジショニング・システム）センサである。 Examples of sensors 5 and 7 attached to footwear are a 6-axis sensor, a (3-axis) gyro sensor, and a (3-axis) acceleration sensor. The 6-axis sensor is a sensor that can detect acceleration, direction, and rotation, and can also calculate a moving distance and a moving speed. Another example of the sensor 5 is a sensor that senses pressure, a geomagnetic sensor, or a GPS (global positioning system) sensor.
　送信部１１の例は，アンテナである。送信部１１は，センサ５，７からセンシング情報を受け取ることができるように，センサ５，７と接続されている。そして，送信部１１は，センサ５，７からセンシング情報を受け取ったセンシングデータを，外部装置へ向けて送信する。センシングデータには，センサの種類に応じて，センサが観測した，被験者の加速度データや角速度データなどが含まれている。 An example of the transmission unit 11 is an antenna. The transmission unit 11 is connected to the sensors 5 and 7 so that the sensing information can be received from the sensors 5 and 7. And the transmission part 11 transmits the sensing data which received sensing information from the sensors 5 and 7 toward an external device. Sensing data includes the acceleration data and angular velocity data of the subject observed by the sensor according to the type of sensor.
　履物１，３内部には，センサやアンテナへ電力を供給する電源，電源のＯＮ／ＯＦＦを切り替えるスイッチ，センサ，アンテナ及び電源を制御する制御部が設けられてもよい。 The footwear 1 and 3 may be provided with a power source for supplying power to the sensor and the antenna, a switch for switching ON / OFF of the power source, a sensor, the antenna, and a control unit for controlling the power source.
　外部装置の例は，コンピュータである。コンピュータは，入力部，出力部，制御部，演算部及び記憶部を有している。そして，記憶部に記憶された制御プログラムを読み出して，制御部が各種指令を出す。また，制御部は，記憶部に記憶された各種データを読み出し，読み出したデータや入力部から入力されたデータを用いて，演算部に各種演算を行わせる。演算部が演算処理して得られたデータは，適宜記憶部に記憶され，出力部から出力される。入力部は，コンピュータ内に，各種のデータを入れるための要素である。入力部の例は，キーボード，インターフェース，及びアンテナである。制御プログラムは，ハードウェアによって実現されてもよいし，記憶部に記憶されたコンピュータが読み取りできるプログラムであってもよいし，ＣＤ－ＲＯＭなどの記録媒体に記録されたコンピュータが読み取りできるプログラムであってもよい。 An example of an external device is a computer. The computer has an input unit, an output unit, a control unit, a calculation unit, and a storage unit. Then, the control program stored in the storage unit is read, and the control unit issues various commands. Further, the control unit reads various data stored in the storage unit, and causes the calculation unit to perform various calculations using the read data and data input from the input unit. Data obtained by the arithmetic processing performed by the arithmetic unit is appropriately stored in the storage unit and output from the output unit. The input unit is an element for entering various data in the computer. Examples of the input unit are a keyboard, an interface, and an antenna. The control program may be realized by hardware, may be a computer-readable program stored in the storage unit, or may be a computer-readable program recorded on a recording medium such as a CD-ROM. May be.
　そして，外部装置は，解析部を有する。この解析部は，外部装置が受信したセンシングデータを用いて，
　（１）　　左右の足のそれぞれが着地した際の履物の左右方向への傾斜，
　（２）　　踵（かかと）接地と足指接地との時間差，及び
　（３）　　左右の足のそれぞれが着地した際の進行方向と左右の足の向きのずれ，のいずれか又は２つ以上を解析することで，被験者の歩行状況を評価する。この評価は，主に被験者の着地状況の評価である。 The external device has an analysis unit. This analysis unit uses the sensing data received by the external device,
(1) Inclination of the footwear in the left-right direction when each of the left and right feet lands,
(2) Time difference between heel contact and toe contact, and (3) Analysis of one or more of the direction of movement when the left and right feet each land and the difference in the orientation of the left and right feet To evaluate the walking situation of the subject. This evaluation is mainly an evaluation of the landing situation of the subject.
　例えば，センシングデータには，加速度やジャイロに関するデータが含まれている。それらのデータを解析し，センサの位置や速度を解析できる。解析部は，これらのデータを分析し，移動速度が，下方から上方に変わるまでの間又は，センサの位置が低い位置となった場合に，左右いずれかの履物が接地したと解析する。 For example, sensing data includes acceleration and gyro data. By analyzing these data, the sensor position and velocity can be analyzed. The analysis unit analyzes these data, and analyzes that either the left or right footwear touches the ground until the moving speed changes from the lower side to the upper side or when the position of the sensor is low.
　（１）　　左右の足のそれぞれが着地した際の履物の左右方向への傾斜
　解析部は，左右いずれかの履物が接地した際の加速度やジャイロに関するデータから，履物の左右方向への傾きを求める。図２は，履物の左右方向への傾きを示す概念図である。図２（ａ）は，左足用のヒールが左向きに傾いている様子，傾きがない様子，右向きに傾いている様子を示す図である。図２（ｂ）は，履物の左右方向への傾斜（θ）を示す。この例では，履物をハイヒールを用いて示している。しかし，履物はハイヒールに現地されない。履物の左右方向への傾きとは，履物が鉛直下向きに設置した場合を０°とし，例えば右足用の履物の場合，左側が右側に比べて下に位置するように傾いているときは水平面と靴底がなす角，左側が右側に比べて上に位置するように傾いているときも水平面と靴底がなす角を意味する。 (1) Inclination of the footwear in the left-right direction when each of the left and right feet lands The analysis unit obtains the inclination of the footwear in the left-right direction from data on acceleration and gyro when the left or right footwear touches the ground . FIG. 2 is a conceptual diagram showing the inclination of the footwear in the left-right direction. FIG. 2A is a diagram illustrating a state in which the heel for the left foot is inclined leftward, there is no inclination, and the heel is inclined rightward. FIG. 2B shows the inclination (θ) of the footwear in the left-right direction. In this example, the footwear is shown using high heels. However, footwear is not local to high heels. The horizontal inclination of footwear is defined as 0 ° when the footwear is installed vertically downward. For example, in the case of footwear for the right foot, when the left side is tilted with respect to the right side, The angle formed by the shoe sole and the angle formed by the horizontal plane and the shoe sole when tilted so that the left side is positioned higher than the right side.
　記憶部は，履物の左右方向への傾きと評価及び評価点に関するデータを記憶する。この評価及び評価点は，例えば，傾斜が０～５°の場合，○及び１００点，５°～１０°の場合△及び７０点，１０°～１５°の場合５０点である。そして，解析部は，履物の左右方向への傾斜のそれぞれについて，記憶部から評価及び評価点を読み出す。なお，評価及び評価点のいずれかのみを読み出すものであってもよい。この点は，本明細書において以下同様である。このようにして，センシングデータを用いて，履物の左右方向への傾きと評価及び評価点が求められる。 The storage unit stores data on the inclination and evaluation of footwear in the left-right direction and evaluation points. The evaluation and evaluation points are, for example, ◯ and 100 points when the inclination is 0 to 5 °, Δ and 70 points when the inclination is 5 ° to 10 °, and 50 points when the inclination is 10 ° to 15 °. And an analysis part reads an evaluation and an evaluation score from a memory | storage part about each of the inclination to the left-right direction of footwear. Note that only one of the evaluation and the evaluation score may be read out. This is the same in the present specification. In this way, using the sensing data, the inclination, evaluation and evaluation point of the footwear in the left-right direction are obtained.
　このようにして求めた左右の履物の評価点を，右左ごとに，ｘＲ１，及びｘＬ１とする。なお，この評価は左右の履物（左右の足）それぞれについて求めることが好ましいものの，一方の足の評価点のみを求めるものであってもよい。この点も以下同様である。 The evaluation points of the left and right footwear obtained in this way, for each right and left, and x R1, and x L1. In addition, although it is preferable to obtain this evaluation for each of the left and right footwear (left and right feet), only the evaluation point of one foot may be obtained. This also applies to the following.
　また，解析部は，左方向への傾きと右方向への傾きの差を求め，被験者の左右のバランスを求めてもよい。記憶部は，左方向への傾きと右方向への傾きの差とバランスに関する評価及び評価点に関するデータを記憶する。この評価及び評価点は，例えば，差が０～５°の場合，○及び１００点，５°～１０°の場合△及び７０点，１０°～１５°の場合５０点である。解析部は，左方向への傾きと右方向への傾きに関するデータを用いて，左方向への傾きと右方向への傾きの差を求める。そして，解析部は，記憶部から，左方向への傾きと右方向への傾きの差に応じた，評価及び評価点を読み出す。このようにして，解析部は，左方向への傾きと右方向への傾きに基づくバランス（接地時のバランス）を求めることができる。なお，左方向への傾きと右方向への傾きの差が大きい場合は，左右の足の長さが異なる場合があるなど歩行に偏りがある可能性がある。すなわち，記憶部は，左方向への傾きと右方向への傾きの差に関する閾値を記憶しておき，解析部は，この閾値と，求めた左方向への傾きと右方向への傾きの差とを比較し，この差がこの閾値を超えている場合に，左右のバランスが良くない旨のアラート（警告）を出力できるようにしてもよい。つまり，求めた左方向への傾きと右方向への傾きの差が著しい場合，歩行姿勢のみを改善するだけではなく，医師による診断を受けることが望ましいので，その旨の警告が出力されるようにされてもよい。なお，このバランスは，後述する踵接地時における左右の足のそれぞれが着地した際の履物の左右方向への傾斜を求めるものであってもよい。 In addition, the analysis unit may obtain a difference between the leftward inclination and the rightward inclination to obtain the left / right balance of the subject. The storage unit stores evaluation regarding the difference and balance between the inclination to the left and the inclination to the right, and data regarding the evaluation point. The evaluation and evaluation points are, for example, ◯ and 100 points when the difference is 0 to 5 °, Δ and 70 points when the difference is 5 ° to 10 °, and 50 points when the difference is 10 ° to 15 °. The analysis unit obtains the difference between the inclination to the left and the inclination to the right by using data on the inclination to the left and the inclination to the right. Then, the analysis unit reads the evaluation and the evaluation score according to the difference between the inclination in the left direction and the inclination in the right direction from the storage unit. In this way, the analysis unit can obtain a balance (balance at the time of ground contact) based on the inclination to the left and the inclination to the right. When the difference between the leftward and rightward inclinations is large, there is a possibility that the walking is biased, for example, the lengths of the left and right feet may be different. In other words, the storage unit stores a threshold value regarding a difference between the leftward inclination and the rightward inclination, and the analysis unit stores the threshold value and the difference between the obtained leftward inclination and the rightward inclination. And when this difference exceeds this threshold, an alert (warning) indicating that the left / right balance is not good may be output. In other words, if the difference between the leftward inclination and the rightward inclination is significant, it is desirable not only to improve the walking posture but also to receive a diagnosis by a doctor, so that a warning to that effect may be output. May be. In addition, this balance may obtain | require the inclination to the left-right direction of the footwear when each of the right-and-left foot at the time of the heel contact mentioned later landing.
　このようにして求めた，左方向への傾きと右方向への傾きの差に応じた評価点左右の履物の評価点をｘＡ１とする。 There was thus determined, the evaluation points of evaluation points left and right footwear corresponding to the difference between the inclination of the slope and the right-to-left direction as x A1.
　（２）　　踵（かかと）接地と足指接地との時間差
　図３は，踵（かかと）接地と足指接地（つま先接地）との時間差を説明するための概念図である。図３（ａ）は，踵接地の例を示し，図３（ｂ）は着地がタイミングよくおこなわれた例を示す。踵（かかと）接地は，靴の最も後ろの部分が地面に着くタイミングをもって踵接地と判断してもよいし，履物がハイヒールなどヒール部を有するものの場合は，ヒール部分が接地したタイミングをもって踵接地と判断してもよい。足指接地は，靴の前部分（足の指が収容される部分）が最初に接地したタイミングであってもよい。図３の例では，図３（ａ）の状態から図３（ｂ）の状態までの時間を踵接地と足指接地との時間差としてもよい。 (2) Time difference between heel contact and toe contact FIG. 3 is a conceptual diagram for explaining a time difference between heel contact and toe contact (toe contact). FIG. 3 (a) shows an example of dredging contact, and FIG. 3 (b) shows an example where landing is performed with good timing. The heel contact may be determined as heel contact when the rearmost part of the shoe touches the ground. If the footwear has a heel part such as a high heel, the heel contact will occur when the heel part contacts the ground. You may judge. The toe contact may be the timing at which the front part of the shoe (the part in which the toe is accommodated) first contacts the ground. In the example of FIG. 3, the time from the state of FIG. 3A to the state of FIG. 3B may be the time difference between the heel contact and the toe contact.
　解析部は，左右いずれかの履物が接地した際の加速度やジャイロに関するデータから，左右いずれかの履物が最初に接地したことを把握する。これは，例えば，データを用いて，履物のある部位が地面近くの位置に位置することや，速度の変化を求めることで，解析できる。例えば，最初に接地した部分が指先部分（足の前半分部分）である場合は，解析部は，その履物の指先部分が接地した時間を記憶部に記憶させる。また，解析部は，データを用いて，その履物の踵部分が接地したことを解析する。そのうえで，解析部は，その履物の踵部分が接地した時間を記憶部に記憶させる。解析部は，記憶部に記憶したその履物の指先部分が接地した時間と，その履物の踵部分が接地した時間とを読み出して，これらの差分を求め，これにより踵（かかと）接地と足指接地との時間差を求める。解析部は，求めた踵接地と足指接地との時間差を記憶部に記憶する。 The analysis unit grasps that the footwear on either the left or right foot first touched the ground from the data on acceleration or gyro when the footwear on the left or right touches the ground. This can be analyzed, for example, by using data to determine whether a part of the footwear is located near the ground or by determining a change in speed. For example, when the first grounded part is the fingertip part (front half part of the foot), the analysis unit stores the time when the fingertip part of the footwear is grounded in the storage unit. The analysis unit uses the data to analyze that the heel portion of the footwear is grounded. In addition, the analysis unit causes the storage unit to store the time when the heel portion of the footwear contacts the ground. The analysis unit reads the time when the fingertip part of the footwear touches the ground and the time when the heel part of the footing touches the ground stored in the storage unit, and obtains a difference between them, thereby obtaining the heel grounding and the toes. Find the time difference from the ground. The analysis unit stores the obtained time difference between the heel contact and the toe contact in the storage unit.
　記憶部には，踵接地と足指接地との時間差に基づく評価及び評価点が記憶されている。解析部は，求めた踵接地と足指接地との時間差に関するデータを用いて，記憶部から，求めた踵接地と足指接地との時間差に対応する評価及び評価点を読み出す。このようにして，解析部は，踵接地と足指接地の差に基づいた，歩行のバランス（踵とつま先接地の時間差が大きすぎないか）を解析する。 The storage unit stores evaluations and evaluation points based on the time difference between heel contact and toe contact. The analysis unit reads, from the storage unit, evaluations and evaluation points corresponding to the obtained time difference between the heel contact and the toe contact using the data regarding the time difference between the obtained heel contact and the toe contact. In this way, the analysis unit analyzes the balance of walking (whether the time difference between the heel and the toe contact is too large) based on the difference between the heel contact and the toe contact.
　このようにして求めた踵接地と足指接地の差に基づいた評価点をｘＲ２，ｘＬ２とする。 An evaluation point based on the difference in this way heel strike and toe ground obtained and x R2, x L2.
　（３）　　左右の足のそれぞれが着地した際の進行方向と左右の足の向きのずれ
　図４は，左右の足のそれぞれが着地した際の進行方向と左右の足の向きのずれを説明するための概念図である。図４（ａ）は，右足が進行方向から外向き方向（時計回り方向）に傾いたもの，右足が進行方向とほぼ一致したもの，及び右足が進行方向から内向き（反時計回り方向）に傾いたものを示す。図４（ｂ）は，進行方向と左右の足の向きのずれを示す。足の方向は，例えば，踵（又は足の一番後ろの部位）と，特定の指（例えば中指）の先端までを結ぶ直線とすればよい。進行方向は，ジャイロセンサ等により把握できる。　解析部は，左右いずれかの履物が接地した際の加速度やジャイロに関するデータから，左右の履物それぞれの進行方向を把握する。
　解析部は，先に説明したとおり，踵接地と足指接地を解析できる。解析部は，前記データから，踵接地及び足指接地のいずれか又は両方における履物の方向（接地時における履物の方向）を求める。解析部は，求めた左右の履物それぞれの進行方向と，接地時における履物の方向とのなす角（進行方向と履物のなす角）を求める。解析部は，求めた進行方向と履物のなす角を適宜記憶部に記憶する。このようにして，解析部は，左右の足のそれぞれが着地した際の進行方向と左右の足の向きのずれ（進行方向と履物のなす角）を求めることができる。進行方向に対して真っ直ぐか０°～１０°程度まで外向きの角度を有することがよく，例えば，２０°以上内向きに着地していれば内股歩行，３０°以上外向きに着地していればガニ股歩行などとして，被験者にアラートを出力してもよい。 (3) Deviation between the direction of travel and the direction of the left and right feet when each of the left and right feet lands FIG. 4 illustrates the difference between the direction of travel and the orientation of the left and right feet when each of the left and right feet lands. It is a conceptual diagram for. FIG. 4A shows that the right foot is inclined outward from the traveling direction (clockwise direction), the right foot is substantially coincident with the traveling direction, and the right foot is inward from the traveling direction (counterclockwise direction). Shows what is tilted. FIG. 4B shows a deviation between the traveling direction and the left and right feet. The direction of the foot may be, for example, a straight line connecting the heel (or the rearmost part of the foot) and the tip of a specific finger (for example, the middle finger). The traveling direction can be grasped by a gyro sensor or the like. The analysis unit grasps the traveling direction of each of the left and right footwear from the data on acceleration and gyro when the left and right footwear touches the ground.
The analysis unit can analyze heel contact and toe contact as described above. The analysis unit obtains the direction of the footwear (the direction of the footwear at the time of ground contact) from one or both of the heel contact and the toe contact from the data. The analysis unit obtains an angle formed by the obtained traveling direction of the left and right footwear and the direction of the footwear at the time of ground contact (the traveling direction and the angle formed by the footwear). The analysis unit appropriately stores the obtained traveling direction and the angle formed by the footwear in the storage unit. In this way, the analysis unit can determine the deviation between the direction of travel when the left and right feet land and the direction of the left and right feet (the angle between the travel direction and the footwear). It should be straight or have an outward angle of 0 ° to 10 ° with respect to the direction of travel. For example, if you land inward for 20 ° or more, walk in the inner crotch, land for 30 ° or more outward. For example, an alert may be output to the subject as a crab crotch walking.
　記憶部には，進行方向と履物のなす角に基づく評価及び評価点が記憶されている。解析部は，求めた進行方向と履物のなす角に関するデータを用いて，記憶部から，求めた進行方向と履物のなす角に対応する評価及び評価点を読み出す。このようにして，解析部は，進行方向と履物のなす角に基づいた，歩行のバランス（足をまっすぐ出せているか否か）を解析する。 The evaluation unit and evaluation points based on the direction of travel and the angle formed by the footwear are stored in the storage unit. The analysis unit reads, from the storage unit, evaluations and evaluation points corresponding to the calculated direction of travel and the angle between the footwear, using data regarding the direction of travel and the angle between the footwear. In this way, the analysis unit analyzes the balance of walking (whether or not the foot can be straightened) based on the direction of travel and the angle formed by the footwear.
　このようにして求めた踵接地と足指接地の差に基づいた評価点をｘＲ３，ｘＬ３とする。 An evaluation point based on the difference in this way heel strike and toe ground obtained and x R3, x L3.
　安定性の評価
　解析部は，先に求めた左右の足のそれぞれが着地した際の履物の左右方向への傾斜を複数回記憶部に記憶してもよい。図５は，安定性の評価を示す概念図である。図５（ａ）は内倒れ（左側）と正常のものを示し，図５（ｂ）は正常と外倒れのものを示し，図５（ｃ）はぐらつきの様子を示す。ぐらつきの角度は，先に説明した履物の左右方向への傾斜と同様のものである。そして，記憶部は，内倒れ，外倒れ，及びぐらつきに関する閾値を記憶する。内倒れ及び外倒れに関する閾値の例は，傾斜の角度である。これは，履物の左右方向への傾きと評価及び評価点をそのまま用いてもよい。ぐらつきに関する閾値の例は，一定歩数間に内倒れと外倒れの両方を認めた場合に判定するものである。解析部は，例えば，連続する所定回数分の左右の足のそれぞれが着地した際の履物の左右方向への傾斜を読み出す。そのうえで，傾斜の変動が内倒れと外倒れの両側に一定閾値以上の傾いた場合，ぐらつきがあるとする。解析部は，また．左右の足のそれぞれが着地した際の履物の左右方向への傾斜と閾値とを比較して，その傾斜が閾値を超えた数や最大角度を求め，ぐらつきの値としてもよい。ぐらつきの値は，記憶部に記憶される。このようにして，歩行のバランス（安定性）が評価される。 Stability Evaluation The analysis unit may store the inclination of the footwear in the left-right direction when each of the left and right feet previously obtained landed in the storage unit a plurality of times. FIG. 5 is a conceptual diagram showing the evaluation of stability. FIG. 5 (a) shows inward (left side) and normal, FIG. 5 (b) shows normal and outward fall, and FIG. 5 (c) shows the wobble. The wobble angle is the same as the inclination of the footwear in the left-right direction described above. And a memory | storage part memorize | stores the threshold value regarding internal fall, external fall, and wobble. An example of a threshold for inward and outward falls is the angle of inclination. For this, the inclination, evaluation and evaluation point of the footwear in the left-right direction may be used as they are. An example of the threshold value for wobble is to be determined when both inward and outward falls are recognized during a certain number of steps. The analysis unit reads, for example, the inclination of the footwear in the left-right direction when each of the left and right feet for a predetermined number of consecutive times has landed. In addition, if the fluctuation of the tilt is more than a certain threshold on both sides of the infall and the outer fall, it is assumed that there is wobble. The analysis part is also. By comparing the left and right slopes of the footwear when the left and right feet land with the threshold value, the number of the slopes exceeding the threshold value and the maximum angle may be obtained to obtain a wobble value. The wobble value is stored in the storage unit. In this way, the balance (stability) of walking is evaluated.
　記憶部には，ぐらつきの値に基づく評価及び評価点が記憶されている。解析部は，求めたぐらつきの値に関するデータを用いて，記憶部から，求めたぐらつきの値に対応する評価及び評価点を読み出す。このようにして，解析部は，ぐらつきの値に基づいた，歩行のバランス（安定性）を解析する。 The storage unit stores evaluations based on wobble values and evaluation points. The analysis unit reads the evaluation and the evaluation score corresponding to the obtained wobble value from the storage unit, using the data related to the obtained wobble value. In this way, the analysis unit analyzes the balance (stability) of walking based on the wobble value.
　このようにして求めたぐらつきの値に基づいた評価点をｘＡ２とする。 An evaluation point based on the value of the wobble determined in this way and x A2.
　蹴り出しの評価
　解析部は，外部装置が受信したセンシングデータを用いて，左右の踵部のそれぞれが地面から離れた際の踵部の最大傾斜を求め，求めた最大傾斜から被験者の蹴り出しを評価するものであってもよい。 Evaluation of kicking out The analysis unit uses the sensing data received by the external device to determine the maximum inclination of the hips when each of the left and right hips is separated from the ground, and the subject's kicking is determined from the calculated maximum inclination. You may evaluate.
　左右の踵部のそれぞれが地面から離れた際の最大傾斜は，左右の踵部のそれぞれが地面から離れている状態における，履物の裏面と，地面がなす角の最大値を意味する。図６は，左右の踵部のそれぞれが地面から離れた際の踵部の最大傾斜を説明するための概念図である。図６（ａ）は，傾斜が大きく望ましい蹴りだしの様子を示し，図６（ｂ）は傾斜が小さい蹴り出しの概念図である。解析部は，先に説明したとおり，踵接地及び足指接地のタイミングを把握している。そのタイミングにおける履物の位置より高い位置に履物がある場合が，左右の踵部のそれぞれが地面から離れた際である。データには，加速度データやジャイロデータが含まれているので，解析部は，このデータを用いて，踵部の傾斜を求めて記憶する。そして，記憶した踵部の傾斜を読み出して，読み出した踵部の傾斜を比較し，最も大きいものをその踵部の最大傾斜として記憶部に記憶する。この踵部の最大傾斜は，足指離地から踵部接地までの時間ごとに求められて，記憶部に記憶されてもよい。このようにして，左右の足のそれぞれが地面から離れた際の踵部の最大傾斜が求められる。 The maximum inclination when the left and right heels are separated from the ground means the maximum angle between the back of the footwear and the ground when the left and right heels are separated from the ground. FIG. 6 is a conceptual diagram for explaining the maximum inclination of the heel portion when the left and right heel portions are separated from the ground. FIG. 6A shows a desirable kicking out state with a large inclination, and FIG. 6B is a conceptual diagram of kicking out with a small inclination. As described above, the analysis unit grasps the timing of heel contact and toe contact. The case where the footwear is higher than the footwear position at that timing is when each of the left and right buttock leaves the ground. Since the data includes acceleration data and gyro data, the analysis unit obtains and stores the inclination of the buttocks using this data. Then, the stored inclination of the buttock is read, the read inclinations of the buttock are compared, and the largest inclination is stored in the storage unit as the maximum inclination of the buttock. The maximum inclination of the buttock may be obtained every time from the toe separation to the buttock contact and stored in the storage unit. In this way, the maximum inclination of the buttocks when the left and right feet are separated from the ground is obtained.
　記憶部には，踵部の最大傾斜に基づく評価及び評価点が記憶されている。解析部は，求めた踵部の最大傾斜に関するデータを用いて，記憶部から，求めた踵部の最大傾斜に対応する評価及び評価点を読み出す。このようにして，解析部は，踵部の最大傾斜に基づいた，歩行のバランス（蹴り出し）を解析する。 The storage unit stores evaluations and evaluation points based on the maximum inclination of the buttocks. The analysis unit reads the evaluation and the evaluation score corresponding to the obtained maximum inclination of the buttock from the storage unit, using the data regarding the determined maximum inclination of the buttock. In this way, the analysis unit analyzes the balance of walking (kicking out) based on the maximum inclination of the buttocks.
　このようにして求めた踵部の最大傾斜に基づいた，歩行のバランス（蹴り出し）に基づいた評価点をｘＲ４，ｘＬ４とする。なお，進行方向に比べて足をまっすぐ蹴り出せているかを評価項目に加えてもよい。進行方向と蹴りだし方向のなす角は図４と同様の考え方で求めることができ，図４におけると同様の処理により，評価できる。 Assume that the evaluation points based on the balance of walking (kicking out) based on the maximum inclination of the buttocks thus obtained are xR4 and xL4 . In addition, you may add to an evaluation item whether the leg can be kicked straight compared with the advancing direction. The angle formed by the traveling direction and the kicking direction can be obtained by the same concept as in FIG. 4, and can be evaluated by the same processing as in FIG.
　リズム
　解析部は，外部装置が受信したセンシングデータを用いて，左右の足が接地した後に，次に接地するまでの時間の間隔である接地時間間隔を求め，被験者のリズムを評価するものであってもよい。この間隔は，一歩ごとのタイミングを評価するものといえる。接地は，踵部接地であっても，足指接地であっても構わない。先に説明したとおり，解析部は，踵部接地（足指接地）のタイミングを求め，記憶する。解析部は，記憶した踵部接地（足指接地）のタイミングを用いて，接地時間間隔を求めればよい。そして，解析部は，求めた接地時間間隔を適宜記憶部に記憶すればよい。 The rhythm analysis unit evaluates the subject's rhythm by using the sensing data received by the external device to determine the contact time interval, which is the time interval from the time when the left and right feet touch the ground until the next contact. May be. This interval can be said to evaluate the timing of each step. The grounding may be a buttock grounding or a toe grounding. As described above, the analysis unit obtains and stores the timing of buttocks contact (toe contact). The analysis unit may obtain the contact time interval using the stored timing of the buttocks contact (toe contact). And the analysis part should just memorize | store the calculated | required contact time interval in a memory | storage part suitably.
　解析部は，所定歩数における接地時間間隔を記憶部から読み出す。解析部は，読み出した複数の接地時間間隔の値を用いて，左右それぞれの履物について，接地時間間隔の分散，又は偏差といった統計値を求める。記憶部には，統計値とそれに基づく評価及び評価点が記憶されている。 The analysis unit reads the contact time interval at a predetermined number of steps from the storage unit. An analysis part calculates | requires statistical values, such as dispersion | distribution of a contact time interval, or a deviation about each footwear using the value of several read contact time intervals. The storage unit stores statistical values, evaluations based on the statistical values, and evaluation points.
　解析部は，求めた統計値（例：，接地時間間隔の分散，又は偏差）を用いて，記憶部から，求めた統計値に対応する評価及び評価点を読み出す。このようにして，解析部は，統計値に基づいた，歩行のバランス（リズム）を解析する。 The analysis unit reads the evaluation and evaluation score corresponding to the calculated statistical value from the storage unit using the calculated statistical value (eg, dispersion or deviation of the contact time interval). In this way, the analysis unit analyzes the walking balance (rhythm) based on the statistical values.
　このようにして求めた接地時間間隔に基づいた評価点をｘＲ５，ｘＬ５とする。 Assume that the evaluation points based on the ground contact time intervals thus obtained are xR5 and xL5 .
　解析部は，
　外部装置が受信したセンシングデータを用いて，左右の足の接地時間間隔を比較することで，被験者の左右バランスを評価するものであってもよい。この比較は，例えば，上記のようにして求めた複数の接地時間間隔の値の平均値を求めて，解析部が，左右の平均値を比較することにより求めればよい。記憶部は，この比較値（例えば，平均値の差）に対応した評価及び評価値を記憶しており，解析部は１３求めた比較値に基づいて，記憶部から評価及び評価値を読み出せばよい。 The analysis part
The left / right balance of the subject may be evaluated by comparing the contact time intervals between the left and right feet using the sensing data received by the external device. This comparison may be obtained, for example, by obtaining an average value of a plurality of contact time interval values obtained as described above, and the analysis unit comparing the left and right average values. The storage unit stores evaluations and evaluation values corresponding to the comparison values (for example, the difference between the average values), and the analysis unit can read the evaluations and evaluation values from the storage unit based on the 13 comparison values obtained. That's fine.
　このようにして求めた左右の足の接地時間間隔の差に基づいた評価点をｘＡ３とする。 Assume that the evaluation point based on the difference between the contact time intervals of the left and right feet thus obtained is xA3 .
　解析部は，
　さらに，外部装置が受信したセンシングデータを用いて，
　（１）　　踵部接地から足指接地までの時間の間隔，
　（２）　　足指接地から踵離地までの時間の間隔，
　（３）　　踵離地から足指離地までの時間の間隔，及び
　（４）　　足指離地から踵部接地までの時間の間隔
　のいずれか１種又は２種以上を求め，被験者のリズム及び左右バランスのいずれか又は両方を評価するものであってもよい。これは，基本的には，先に説明したと同様にして解析部が求めることができ，また評価及び評価値を記憶部から読み出すことができる。すなわち，センシングデータを用いることで，解析部は，踵部接地，足指接地，踵離地，足指離地のタイミングを求めることができる。解析部は，求めたタイミングを記憶部に記憶し，記憶したタイミングを読み出して，差分をとることにより時間間隔を求め，求めた時間間隔を記憶部に記憶する。記憶部は，時間間隔に応じた評価及び評価点を記憶しているので，解析部は，求めた時間間隔に応じた評価及び評価点を記憶部から読み出すことができる。評価点はｘＲ５，ｘＬ５及びｘＡ３と合わせて別な評価点とすることもできるし，ｘＲ５，ｘＬ５及びｘＡ３の代わりに用いることもできる。 The analysis part
Furthermore, using the sensing data received by the external device,
(1) Time interval from buttocks contact to toe contact,
(2) Interval of time from toe contact to heel-off,
Obtain one or more of (3) the time interval from the toes to the toes and (4) the time from the toes to the buttocks. One or both of the left and right balances may be evaluated. This can be basically obtained by the analysis unit in the same manner as described above, and the evaluation and the evaluation value can be read from the storage unit. That is, by using the sensing data, the analysis unit can obtain the timing of the buttock grounding, the toe grounding, the heel-off, and the toe-off. The analysis unit stores the obtained timing in the storage unit, reads the stored timing, obtains a time interval by taking the difference, and stores the obtained time interval in the storage unit. Since the storage unit stores evaluations and evaluation points corresponding to the time intervals, the analysis unit can read the evaluations and evaluation points corresponding to the obtained time intervals from the storage unit. The evaluation points can be combined with x R5 , x L5 and x A3 and can be used as different evaluation points, or can be used instead of x R5 , x L5 and x A3 .
　解析部は，さらに，外部装置が受信したセンシングデータを用いて，履物の加速度の変化及び履物の動きの変化から被験者のつまずきを求め，所定期間に被験者がつまずいた回数であるつまずき回数を求めるものであってもよい。左右の踵部のそれぞれが地面から離れてから再度着地する前の一定時間までの間，例えば足が離れている時間の半分までの間に，進行方向と反対向きの最大加速度が閾値を越えた場合，足同士や地面に対してぶつかり，つまずいたと判定を行う。 The analysis unit further uses the sensing data received by the external device to determine the subject's trip from changes in the acceleration of the footwear and changes in the movement of the footwear, and obtains the number of trips that the subject has tripped over a predetermined period It may be. The maximum acceleration in the direction opposite to the advancing direction exceeded the threshold during a certain period of time before each landing on the right and left hips and before landing again, for example, half of the time when the foot was away In this case, it is judged that the legs have collided with each other or the ground and have stumbled.
　記憶部には，つまずき回数に基づく評価及び評価点が記憶されている。解析部は，求めつまずき回数に関するデータを用いて，記憶部から，求めたつまずき回数に対応する評価及び評価点を読み出す。このようにして，解析部は，つまずき回数に基づいた，歩行のバランス（つまずき）を解析する。 The storage unit stores evaluations based on the number of trips and evaluation points. The analysis unit reads the evaluation and the evaluation score corresponding to the obtained number of trips from the storage unit using the data related to the obtained trip count. In this way, the analysis unit analyzes the balance of walking (stumbling) based on the number of trips.
　このようにして求めたぐらつきの値に基づいた評価点をｘＲ６，ｘＬ６とする。 An evaluation point based on the value of the wobble determined in this way and x R6, x L6.
　解析部は，被験者の着地，歩行安定性，蹴り出し，リズム及び左右バランスのいずれか１つ又は２つ以上から，被験者の歩行評価点を求めるものであってもよい。記憶部は，各評価項目の係数を記憶している。この係数は，変更可能である。そして，解析部は，記憶部に記憶した各評価点と，それに対応した係数を読み出す。解析部は，読み出した各評価点とそれに対応した係数を用いて，被験者の歩行評価点を求める。 The analysis unit may obtain a walking evaluation score of the subject from any one or two or more of the landing, walking stability, kicking out, rhythm, and left / right balance of the subject. The storage unit stores the coefficient of each evaluation item. This factor can be changed. And an analysis part reads each evaluation score memorize | stored in the memory | storage part, and a coefficient corresponding to it. An analysis part calculates | requires a test subject's walk evaluation score using each read evaluation score and the coefficient corresponding to it.
　被験者の歩行評価点をＰそれぞれの係数をａＸＸとすると，解析部は，例えば以下のようにしてＰを求めることができる。＋
　Ｐ＝ａ１１ｘＲ１＋ａ１２ｘＬ１＋ａ２１ｘＲ２＋ａ２２ｘＬ２＋ａ３１ｘＲ３＋ａ３２ｘＬ３＋ａ４１ｘＲ４＋ａ４２ｘＬ４＋ａ５１ｘＲ５＋ａ５２ｘＬ５＋ａ６１ｘＲ６＋ａ６２ｘＬ６＋ａ７ｘＡ１＋ａ８ｘＡ２＋ａ９ｘＡ３ When walking scores of the subjects to the P of each coefficient with a XX, analysis unit can determine the P, for example, as follows. +
P = a 11 x R1 + a 12 x L1 + a 21 x R2 + a 22 x L2 + a 31 x R3 + a 32 x L3 + a 41 x R4 + a 42 x L4 + a 51 x R5 + a 52 x L5 + a 61 x R6 + a 62 x L6 + A 7 x A1 + a 8 x A2 + a 9 x A3
　記憶部は，各評価項目の評価点に応じたコメントや動画を記憶しているものが好ましい。そして，解析部は，記憶部に記憶した各評価項目の評価点を読み出し，それらを比較し，最も値の低い評価項目，又は値の低い所定数の評価項目を求める。解析部は，それら求めた評価項目及び評価点を用いて，記憶部から評価点に応じたコメントや動画を読み出し，被験者の端末１９へ向けて送信する。記憶部は，被験者の端末１９の情報（メールアドレス）を記憶しておいてもよい。また，外部装置は，被験者の端末１９からの要求に応じて，記憶したコメントや動画をダウンロード等できるようにされていてもよい。 It is preferable that the storage unit stores comments and videos according to the evaluation points of each evaluation item. Then, the analysis unit reads the evaluation points of each evaluation item stored in the storage unit, compares them, and obtains the evaluation item having the lowest value or a predetermined number of evaluation items having the lowest value. The analysis unit reads out comments and moving images corresponding to the evaluation points from the storage unit using the obtained evaluation items and evaluation points, and transmits them to the terminal 19 of the subject. The storage unit may store information (email address) of the terminal 19 of the subject. The external device may be configured to download a stored comment or video in response to a request from the terminal 19 of the subject.
　被験者の端末１９の例は，被験者の有する携帯電話などの携帯端末である。被験者の端末１９の別の例は，被験者が閲覧できるコンピュータである。 An example of the test subject's terminal 19 is a mobile terminal such as a mobile phone of the test subject. Another example of the subject's terminal 19 is a computer that the subject can view.
　図７は，携帯端末の出力画面の例である。この例では，被験者の着地，歩行安定性，蹴り出し，リズム及び左右バランスのスコアがチャートに表示されている。そして，測定した評価又は評価点に応じた，コメントが記憶部から読み出され，表示部に表示されている。このコメントは，例えば，１日毎に歩行安定性，蹴り出し，リズム及び左右バランスの順で表示され，１日につき１つの項目を改善することができる。 FIG. 7 shows an example of the output screen of the mobile terminal. In this example, the subject's landing, walking stability, kicking out, rhythm and left / right balance scores are displayed on the chart. A comment corresponding to the measured evaluation or evaluation score is read from the storage unit and displayed on the display unit. This comment is displayed, for example, in order of walking stability, kicking out, rhythm, and left / right balance every day, and one item can be improved per day.
　本発明は，例えば，ＩｏＴなどの技術分野において利用されうる。また，本発明は，スマートフォンなどのアプリケーションとして提供することもできる。 The present invention can be used in technical fields such as IoT, for example. Moreover, this invention can also be provided as applications, such as a smart phone.
　１，３　履物
　５，７　センサ
　９　外部装置
　１１　送信部
　１３　解析部
　１５　記憶部
　１７　出力部
　１９　端末 DESCRIPTION OF SYMBOLS 1,3 Footwear 5,7 Sensor 9 External apparatus 11 Transmission part 13 Analysis part 15 Storage part 17 Output part 19 Terminal

Claims (8)

  1. 　左右の足にそれぞれ対応した履物（１，３）と，
    　前記履物に取り付けられたセンサ（５，７）と，
    　前記センサ（５，７）により検出されたセンシングデータを外部装置（９）に送信する前記履物に取り付けられた送信部（１１）と，を有し，
    　前記外部装置（９）は，
    　前記センシングデータを用いて，
    　　前記左右の足のそれぞれが着地した際の前記履物の左右方向への傾斜，
    　　踵接地と足指接地との時間差，及び
    　　前記左右の足のそれぞれが着地した際の進行方向と左右の足の向きのずれ，のいずれか又は２つ以上を解析することで，被験者の歩行状況を評価する解析部（１３）を有する，
    　歩行診断システム。     Footwear (1, 3) corresponding to the left and right feet,
    A sensor (5, 7) attached to the footwear;
    A transmission unit (11) attached to the footwear for transmitting sensing data detected by the sensors (5, 7) to an external device (9);
    The external device (9)
    Using the sensing data,
    Tilting of the footwear in the left-right direction when each of the left and right feet lands,
    Analyzing one or more of the time difference between heel contact and toe contact and the difference between the direction of travel when the left and right feet land and the orientation of the left and right feet Having an analysis unit (13) for evaluating
    Gait diagnostic system.
  2. 　請求項２に記載の歩行診断システムであって，
    　前記解析部（１３）は，
    　さらに，前記左右の足のそれぞれが地面から離れた際の踵部の最大傾斜を求め，求めた踵部の最大傾斜から前記被験者の蹴り出しを評価する，歩行診断システム。     The walking diagnosis system according to claim 2, wherein
    The analysis unit (13)
    Furthermore, the gait diagnosis system which calculates | requires kicking of the said test subject from the calculated | required maximum inclination of the buttocks when each of the said right and left legs leaves | separated from the ground.
  3. 　請求項２に記載の歩行診断システムであって，
    　前記解析部（１３）は，
    　さらに，前記左右の足が接地した後に，次に接地するまでの時間の間隔である接地時間間隔を求め，前記被験者のリズムを評価する，歩行診断システム。     The walking diagnosis system according to claim 2, wherein
    The analysis unit (13)
    Furthermore, the gait diagnosis system which calculates | requires the contact time interval which is an interval of time until it touches next after the said right and left leg contacts, and evaluates the test subject's rhythm.
  4. 　請求項３に記載の歩行診断システムであって，
    　前記解析部（１３）は，
    　さらに，左右の足の前記接地時間間隔を比較することで，前記被験者の左右バランスを評価する，歩行診断システム。     The gait diagnosis system according to claim 3,
    The analysis unit (13)
    Furthermore, a gait diagnosis system that evaluates the left-right balance of the subject by comparing the ground contact time intervals of the left and right feet.
  5. 　請求項３に記載の歩行診断システムであって，
    　前記解析部（１３）は，
    　さらに，（１）踵部接地から足指接地までの時間の間隔，（２）足指接地から踵離地までの時間の間隔，（３）踵離地から足指離地までの時間の間隔，及び（４）足指離地から踵部接地までの時間の間隔のいずれか１種又は２種以上を求め，前記被験者のリズム及び左右バランスのいずれか又は両方を評価する，歩行診断システム。     The gait diagnosis system according to claim 3,
    The analysis unit (13)
    In addition, (1) Time interval from toe contact to toe contact, (2) Time interval from toe contact to toe off, (3) Time interval from toe to toe off , And (4) A gait diagnosis system that determines any one or more of time intervals from toe ground to buttock contact and evaluates either or both of the rhythm and left / right balance of the subject.
  6. 　請求項１に記載の歩行診断システムであって，
    　前記解析部（１３）は，
    　さらに，前記履物の加速度の変化及び前記履物の動きの変化から前記被験者のつまずきを求め，所定期間に前記被験者がつまずいた回数であるつまずき回数を求める，歩行診断システム。     The walking diagnosis system according to claim 1,
    The analysis unit (13)
    Furthermore, the gait diagnosis system which calculates | requires the test subject's trip from the change of the acceleration of the said footwear, and the change of the movement of the footwear, and calculates | requires the trip count which is the frequency | count that the said test subject tripped in the predetermined period.
  7. 　請求項４～６のいずれかに記載の歩行診断システムであって，
    　前記解析部（１３）は，
    　さらに，前記被験者の着地，歩行安定性，蹴り出し，リズム及び左右バランスのいずれか１つ又は２つ以上から，前記被験者の歩行評価点を求める，歩行診断システム。     A walking diagnosis system according to any one of claims 4 to 6,
    The analysis unit (13)
    Furthermore, the walking diagnostic system which calculates | requires the said test subject's walking evaluation score from any one or 2 or more of the said subject's landing, walking stability, kicking out, a rhythm, and right-and-left balance.
  8. 　請求項１又は６に記載の歩行診断システムであって，
    　前記外部装置（９）は，
    　前記解析部（１３）の解析結果に基づく被験者へのアドバイス情報を記録した記憶部（１５）をさらに有し，
    　前記歩行診断システムは，前記被験者へのアドバイス情報を表示する出力部（１７）をさらに有する，歩行診断システム。     The walking diagnosis system according to claim 1 or 6,
    The external device (9)
    A storage unit (15) that records advice information to the subject based on the analysis result of the analysis unit (13);
    The gait diagnosis system further includes an output unit (17) for displaying advice information to the subject.
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