WO2014049639A1 - Foot pressure distribution measurement system and information processing device - Google Patents

Foot pressure distribution measurement system and information processing device Download PDF

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Publication number
WO2014049639A1
WO2014049639A1 PCT/JP2012/006108 JP2012006108W WO2014049639A1 WO 2014049639 A1 WO2014049639 A1 WO 2014049639A1 JP 2012006108 W JP2012006108 W JP 2012006108W WO 2014049639 A1 WO2014049639 A1 WO 2014049639A1
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Prior art keywords
pressure distribution
subject
foot
foot pressure
distribution data
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PCT/JP2012/006108
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French (fr)
Japanese (ja)
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泰憲 加藤
美雪 小山
光 ▲高▼橋
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テルモ株式会社
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Priority to JP2014537826A priority Critical patent/JP5918381B2/en
Priority to PCT/JP2012/006108 priority patent/WO2014049639A1/en
Publication of WO2014049639A1 publication Critical patent/WO2014049639A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/1036—Measuring load distribution, e.g. podologic studies

Definitions

  • the present invention relates to a foot pressure distribution measuring system for measuring a foot pressure distribution of a subject and an information processing apparatus constituting the system.
  • motor function recovery training For patients with cranial nervous system disorders such as stroke and paralysis of the right or left part, or patients with musculoskeletal disorders such as indirect disease, a physical therapist has been instructed / monitored.
  • motor function recovery training has been conducted.
  • training for smoothly moving the weight of the left and right feet can be mentioned.
  • two weight scales are installed and the ratio of the respective output values is calculated to quantitatively grasp the weight movement state of the left and right feet. is doing.
  • the exercise function recovery training for example, training for smoothly moving the weight of each foot in the front-rear direction is performed. Smooth movement of the weight of each foot in the front-rear direction is particularly important for walking.
  • Patent Document 1 a foot pressure distribution measuring apparatus that measures and displays a foot pressure distribution of a subject in real time is known.
  • the conventional foot pressure distribution measuring device is not configured on the assumption that it is applied to the motor function recovery training in the medical field. For this reason, in application, it is necessary to add a function for calculating data specific to the medical field. In the exercise function recovery training, for example, to quantitatively grasp the state of weight movement in the front-rear direction of each foot. The function of is desired.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a foot pressure distribution measurement system capable of quantitatively grasping the weight shift in the front-rear direction of each foot of a subject.
  • an information processing apparatus comprises the following arrangement. That is, An information processing apparatus that is connected to a sensor unit in which a plurality of pressure sensors is arranged and calculates foot pressure distribution data of a subject, In the foot pressure distribution data of the subject, a defining means for defining a front portion and a rear portion of the sole of the subject, Of the foot pressure distribution data of the subject, a first load value obtained by adding the foot pressure distribution data detected in the front portion, and a foot pressure distribution data detected in the rear portion. A calculating means for calculating a second load value obtained by adding, Display means for displaying the first load value calculated by the calculation means and the second load value in a comparable manner;
  • a foot pressure distribution measuring system capable of quantitatively grasping the weight shift in the front-rear direction of each foot of the subject.
  • FIG. 1 is a diagram illustrating an example of an external configuration of a foot pressure distribution measurement system 100 according to the first embodiment.
  • the foot pressure distribution measurement system 100 includes a foot pressure distribution measurement sensor 110 and an information processing device 120.
  • the foot pressure distribution measurement sensor 110 includes a sensor unit 111, a base unit 112, and a slope unit 113.
  • a plurality of pressure sensors are two-dimensionally arranged in the sensor unit 111 and embedded in the base unit 112 so as not to cause a step.
  • each pressure sensor arranged in the sensor unit 111 detects the pressure (load), and generates an electrical signal corresponding to the detected load. By outputting, it is possible to measure the foot pressure distribution data of the subject at a predetermined cycle.
  • the slope portion 113 is provided on the side surface of the outer peripheral portion of the base portion 112, and smoothly connects the step between the floor surface on which the foot pressure distribution measurement sensor 110 is placed and the base portion 112. Thereby, for example, when the subject places both feet on the sensor unit 111, the risk that the toe gets caught in a step between the floor surface and the base unit 112 and falls down is avoided. it can.
  • the information processing apparatus 120 acquires the foot pressure distribution data measured by the sensor unit 111 via the cable 130 and displays it on the display unit 204. Further, data obtained by quantifying the weight shift in the front-rear direction of each foot of the subject is displayed on the display unit 204 together with the foot pressure distribution data.
  • FIG. 2 is a diagram illustrating a functional configuration of the information processing apparatus 120 that configures the foot pressure distribution measurement system 100.
  • the information processing apparatus 120 includes a control unit (computer) 201, a memory unit 202, a storage unit 203, a display unit 204, an input unit 205, and an external device I / F unit 206. Each unit is connected via a bus 207.
  • the storage unit 203 stores a program that functions as the division position calculation unit 211 and the weight shift quantification processing unit 212 by being executed by the control unit 201.
  • the program is appropriately read into the memory unit 202 functioning as a work area under the control of the control unit 201 and executed by the control unit 201.
  • the program functions as a division position calculation unit 211 (acquisition unit, definition unit) and a weight shift quantification processing unit 212 (calculation unit, display unit).
  • the foot pressure distribution data of each foot is divided in the front-rear direction, and the load value of the front part (first load value) and the load value of the rear part (second load). Value), the weight shift in the front-rear direction of each foot is quantified.
  • the division position calculation unit 211 calculates a division line indicating a division position when the weight movement quantification processing unit 212 divides the foot pressure distribution of each foot in the front-rear direction. Details of the division position calculation unit 211 and the weight shift quantification processing unit 212 will be described later.
  • the display unit 204 is configured by a display such as a cathode ray tube or a liquid crystal display, and displays a user interface for causing the control unit 201 to execute the program, or displays acquired foot pressure distribution data.
  • the input unit 205 includes a keyboard, a mouse, and the like, and inputs an instruction for executing the program.
  • the external device I / F unit 206 is an I / F for taking the foot pressure distribution data measured by the sensor unit 111 into the information processing apparatus.
  • the function of the division position calculation unit 211 will be described.
  • the weight movement quantification processing unit 212 calculates a division line indicating a division position when dividing the foot pressure distribution of each foot in the front-rear direction in the weight movement quantification processing.
  • the function of the division position calculation unit 211 will be described in detail with reference to FIG.
  • FIG. 3 is a diagram showing foot pressure distribution data of a subject whose right foot is paralyzed.
  • the ground contact area of the sole is greatly different between the healthy foot (left foot) and the paralyzed foot (right foot).
  • the foot on the healthy side (left foot) is partly on the toe side and part on the heel side of the sole, whereas the foot on the paralyzed side (right foot) Has a pointed state where only a part of the toe side is grounded.
  • the division position calculation unit 211 is configured to apply the division line calculated based on the foot pressure distribution data of the healthy foot (left foot) to the paralyzed foot (right foot). Yes.
  • the toe-side end points and the heel-side end points are extracted based on the healthy foot pattern, and the dividing line indicating the dividing position is calculated based on the both end points.
  • the dividing line indicating the dividing position is calculated based on the both end points.
  • FIG. 3 only the part of the toe side and the part of the heel side are detected as the foot pressure distribution data for the healthy side foot (left foot), It is difficult to detect the end point on the toe side and the end point on the heel side.
  • the shape of the entire sole (foot type) cannot be accurately recognized, so the center for accurately dividing the entire sole into two The position may not be determined.
  • the foot when the subject is moved forward in weight or when the user (for example, a physical therapist or the like presses the back of the subject's foot)).
  • the pressure distribution data and the foot pressure distribution data when the subject is moved backward in weight or when the user presses the heel of the subject) are measured, and the soles are measured based on the foot pressure distribution data.
  • identifying the whole shape (foot type) the toe side and heel side end points are extracted, and a dividing line indicating a dividing position is calculated based on the both end points.
  • FIG. 4A is a flowchart showing the flow of the division position calculation process in the division position calculation unit 211.
  • step S401 a plurality of foot pressure distribution data including the foot pressure distribution data in which the fingertip portion of the subject is detected and the foot pressure distribution data in which the heel portion is detected is acquired from the foot pressure distribution measurement sensor 110. Specifically, first, when the subject's body is moved forward, or when the user (for example, a physical therapist) pushes the back of the subject's foot from above, Acquire pressure distribution data.
  • 5a in FIG. 5 is a diagram showing foot pressure distribution data measured when the body of the subject is moved forward, or when the user pushes the back of the subject's foot from above. It is.
  • the subject's healthy foot left foot
  • the division position calculation unit 211 stores the foot pressure distribution data acquired at this time in the storage unit 203.
  • the foot pressure distribution data measured when the body of the subject is moved backward or when the user presses the heel of the subject from above is acquired.
  • 5b of FIG. 5 shows the foot pressure distribution data measured when the body of the subject is moved backward or when the heel of the user's subject's foot is pushed from above. .
  • the subject's healthy foot (left foot) ) Load is applied to the heel, and foot pressure distribution data in which the heel portion is detected can be acquired.
  • the division position calculation unit 211 stores the foot pressure distribution data acquired at this time in the storage unit 203.
  • the division position calculation unit 211 can acquire a plurality of foot pressure distribution data.
  • the division position calculation unit 211 has been described with respect to the case where two foot pressure distribution data are acquired by moving weight in the front-rear direction.
  • the present invention is not limited to this, and for example, the subject In addition to moving the body weight in the front-rear direction, it may be configured to acquire three or more foot pressure distribution data by moving the body weight in the left-right direction.
  • one foot pressure distribution data can identify the foot type of the subject to be described later, only one foot pressure distribution data may be acquired.
  • the foot pattern of the subject is identified using a plurality of foot pressure distribution data stored in the storage unit 203.
  • the plurality of foot pressure distribution data stored in the storage unit 203 includes the foot pressure distribution data in which the fingertip portion of each finger is detected and the foot pressure distribution data in which the heel portion is detected. . Therefore, the foot pattern of the subject can be identified by superimposing the plurality of foot pressure distribution data stored in the storage unit 203. In the case where only one foot pressure distribution data is acquired, the foot shape of the subject is identified only from the one foot pressure distribution data.
  • FIG. 6 is foot pressure distribution data generated by superimposing the foot pressure distribution data shown in 5a of FIG. 5 and the foot pressure distribution data shown in 5b of FIG.
  • the division position calculation unit 211 can identify the foot pattern 601 of the subject. In a case where only one foot pressure distribution data is acquired, such superposition is not necessary. Note that the identified footprint 601 is stored in the storage unit 203.
  • step S403 the front part on the toe side and the rear part on the heel side are defined based on the foot mold 601 identified in step S402. Specifically, as shown in FIG. 7, the toe side end point and the heel side end point are extracted based on the foot mold 601 identified in step S402, and the center between the toe side end point and the heel side end point is extracted. Calculate the position. Further, a line that passes through the calculated center position and is substantially perpendicular to the long axis direction of the foot mold 601 is defined as a dividing line 701, a toe side portion with respect to the dividing line 701 is defined as a front portion, and a heel side portion. Is defined as the rear part.
  • step S404 the position coordinates indicating the front part and the rear part defined in step S403 are stored in the storage unit 203.
  • FIG. 4B is a flowchart showing the flow of weight shift quantification processing in the weight shift quantification processing unit 212.
  • step S41 foot pressure distribution data in a state where the subject is upright is acquired from the foot pressure distribution measurement sensor 110 and displayed.
  • the foot mold 601 stored in the storage unit 203 is superimposed on the foot pressure distribution data acquired in step S411.
  • step S413 the pressure data of each pressure sensor corresponding to the position coordinates of the front part stored in the storage unit 203 among the foot pressure distribution data acquired in step S411 is added to the front part. Calculate the total load. Furthermore, by adding the pressure data of each pressure sensor corresponding to the position coordinates of the rear part stored in the storage unit 203 among the foot distribution data acquired in step S411, the load applied to the rear part is calculated. Calculate the total value.
  • step S414 the total value of the load applied to the front part calculated in step S413 and the total value of the load applied to the rear part are displayed on the display unit 204 so that they can be compared.
  • step S413 a ratio between the total value of loads applied to the front part and the total value of loads applied to the rear part is calculated, and in step S414, the ratio is calculated based on the load. You may comprise so that it may display on the display part 204 with a total value.
  • FIG. 8 illustrates the total value of the load applied to the front portion and the total value of the load applied to the rear portion after the foot mold 601 is superimposed on the foot pressure distribution data acquired in step S411, and A state in which the ratio between the total value of loads applied to the front part and the total value of loads applied to the rear part is displayed on the display unit 204 is shown.
  • the ratio of the total value of the load applied to the front part and the total value of the load applied to the rear part is displayed in real time on the display unit 204, so that It becomes possible to grasp the weight shift quantitatively.
  • the foot shape is identified for one foot (health foot (left foot)) of the subject and the front portion and the rear portion are defined based on the foot shape.
  • the front part and the rear part can be defined by substituting the foot type 601 identified in the healthy side leg (left leg). it can.
  • the division position calculation unit 211 applies the foot shape of the healthy foot (left foot) recognized in step S402 by horizontally flipping (changing) the foot shape so as to fit the paralyzed foot (right foot).
  • a front part and a back part can be specified also about a leg (right leg) on the paralysis side.
  • a division position calculation unit is provided to acquire foot pressure distribution data in which the fingertip portion of each finger of the subject is detected and foot pressure distribution data in which the heel portion is detected, and superimpose these foot pressure distribution data
  • it is configured to identify the foot shape of the subject.
  • it was set as the structure which prescribes
  • the information processing device 120 directly acquires the foot pressure distribution data measured by the foot pressure distribution measurement sensor 110 via the cable 130. Is not limited to this.
  • the information processing apparatus 120 may be configured to acquire via wireless such as Bluetooth.
  • a memory may be arranged in the foot pressure distribution measurement sensor 110, and the foot pressure distribution data measured by the foot pressure distribution measurement sensor 110 may be temporarily stored in the memory.
  • Foot pressure distribution data can be measured at a location.
  • the foot pressure distribution measurement sensor 110 can be connected to the information processing apparatus 120 via the cable 130 to cause the information processing apparatus 120 to acquire the foot pressure distribution data.
  • the foot pressure distribution measurement sensor 110 is formed by one base portion 112 and one sensor portion 111, but the present invention is not limited to this.
  • the base portion 112 and the sensor portion 111 may be separate for the right foot and the left foot, respectively, and may be configured to be detachable or foldable.
  • the slope portion 113 may be configured to be detachable from the base portion 112.
  • the foot shape is identified based on a plurality of foot pressure distribution data in step S402.
  • the present invention is not limited to this, and other than the foot shape.
  • Another figure for example, a quadrangle or an ellipse may be used.
  • said embodiment demonstrated the structure which has a prescription
  • the defining means may be configured such that the physical therapist manually inputs the center position of the leg.
  • the position coordinates of the front part and the rear part are fixed. However, since the foot may move during the measurement, the position coordinates can be updated. Also good.

Abstract

Provided is an information processing device (120) which is connected to a sensor unit (111) and computes foot pressure distribution data of a subject, comprising: a segment location computation unit (211) which acquires foot pressure distribution data wherein the toe portion of the subject is detected and foot pressure distribution data wherein the heel portion of the subject is detected, and overlays the acquired foot pressure distribution data, thereby identifying the shape of the subject's sole, and defining the front portion and the rear portion of the subject's sole; and a weight shift quantification processing unit (212) which displays, together with the subject's foot pressure distribution data, a ratio of a load value of the front portion to a load value of the rear portion.

Description

足圧分布計測システムおよび情報処理装置Foot pressure distribution measuring system and information processing apparatus
　本発明は、被検者の足圧分布を計測する足圧分布計測システム及び該システムを構成する情報処理装置に関するものである。 The present invention relates to a foot pressure distribution measuring system for measuring a foot pressure distribution of a subject and an information processing apparatus constituting the system.
　脳卒中などの脳神経系疾患を発症して右片または左片が麻痺した患者や、間接症などの運動器に関連する疾患を有する患者に対しては、従来より、理学療法士の指導／監視のもとで運動機能回復訓練が行われてきた。運動機能回復訓練の具体例としては、例えば、左右の足の体重移動をスムーズに行うための訓練が挙げられる。当該訓練では、各足に加えられる荷重を計測するために、２台の体重計を設置し、それぞれの出力値の比率を算出することで、左右の足の体重移動の状態を定量的に把握している。 For patients with cranial nervous system disorders such as stroke and paralysis of the right or left part, or patients with musculoskeletal disorders such as indirect disease, a physical therapist has been instructed / monitored. Originally, motor function recovery training has been conducted. As a specific example of the motor function recovery training, for example, training for smoothly moving the weight of the left and right feet can be mentioned. In this training, in order to measure the load applied to each foot, two weight scales are installed and the ratio of the respective output values is calculated to quantitatively grasp the weight movement state of the left and right feet. is doing.
　また、運動機能回復訓練の他の具体例としては、例えば、各足の前後方向の体重移動をスムーズに行うための訓練が行われる。各足の前後方向の体重移動をスムーズに行うことは、歩行を行う上で特に重要となってくる。 Further, as another specific example of the exercise function recovery training, for example, training for smoothly moving the weight of each foot in the front-rear direction is performed. Smooth movement of the weight of each foot in the front-rear direction is particularly important for walking.
　ここで、各足の前後方向の体重移動の状態を監視するためには、例えば、足圧分布計測装置を用いることが有効と考えられる。 Here, in order to monitor the state of weight shift in the front-rear direction of each foot, for example, it is considered effective to use a foot pressure distribution measuring device.
　一方で、従来より、被検者の足圧分布をリアルタイムに計測・表示する足圧分布計測装置が知られている（特許文献１参照）。 On the other hand, conventionally, a foot pressure distribution measuring apparatus that measures and displays a foot pressure distribution of a subject in real time is known (see Patent Document 1).
特開２０１１－０７８５３４号公報JP 2011-078534 A
　しかしながら、従来の足圧分布計測装置の場合、医療現場における上記運動機能回復訓練等への適用を前提して構成されたものではない。このため、適用に際しては、医療現場固有のデータを算出する機能を付加する必要があり、上記運動機能回復訓練においては、例えば、各足の前後方向の体重移動の状態を定量的に把握するための機能が望まれている。 However, the conventional foot pressure distribution measuring device is not configured on the assumption that it is applied to the motor function recovery training in the medical field. For this reason, in application, it is necessary to add a function for calculating data specific to the medical field. In the exercise function recovery training, for example, to quantitatively grasp the state of weight movement in the front-rear direction of each foot. The function of is desired.
　本発明は上記課題に鑑みてなされたものであり、被検者の各足の前後方向の体重移動を定量的に把握することが可能な足圧分布計測システムを提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a foot pressure distribution measurement system capable of quantitatively grasping the weight shift in the front-rear direction of each foot of a subject.
　上記目的を達成するために、本発明に係る情報処理装置は、以下のような構成を備える。即ち、
　複数の圧力センサが配列されたセンサ部と接続され、被検者の足圧分布データを算出する情報処理装置であって、
　前記被検者の足圧分布データにおいて、前記被検者の足裏の前方部分と後方部分とを規定する規定手段と、
　前記被検者の足圧分布データのうち、前記前方部分において検出された足圧分布データを加算することにより得られた第１の荷重値と、前記後方部分において検出された足圧分布データを加算することにより得られた第２の荷重値とを算出する算出手段と、
　前記算出手段により算出された前記第１の荷重値と前記第２の荷重値とを比較可能に表示する表示手段とを備える。 In order to achieve the above object, an information processing apparatus according to the present invention comprises the following arrangement. That is,
An information processing apparatus that is connected to a sensor unit in which a plurality of pressure sensors is arranged and calculates foot pressure distribution data of a subject,
In the foot pressure distribution data of the subject, a defining means for defining a front portion and a rear portion of the sole of the subject,
Of the foot pressure distribution data of the subject, a first load value obtained by adding the foot pressure distribution data detected in the front portion, and a foot pressure distribution data detected in the rear portion. A calculating means for calculating a second load value obtained by adding,
Display means for displaying the first load value calculated by the calculation means and the second load value in a comparable manner;
　本発明によれば、被検者の各足の前後方向の体重移動を定量的に把握することが可能な足圧分布計測システムを提供することができる。 According to the present invention, it is possible to provide a foot pressure distribution measuring system capable of quantitatively grasping the weight shift in the front-rear direction of each foot of the subject.
　本発明のその他の特徴及び利点は、添付図面を参照とした以下の説明により明らかになるであろう。なお、添付図面においては、同じ若しくは同様の構成には、同じ参照番号を付す。 Other features and advantages of the present invention will become apparent from the following description with reference to the accompanying drawings. In the accompanying drawings, the same or similar components are denoted by the same reference numerals.
　添付図面は明細書に含まれ、その一部を構成し、本発明の実施の形態を示し、その記述と共に本発明の原理を説明するために用いられる。
本発明の第１実施形態に係る足圧分布計測システムの外観構成を示す図である。 足圧分布計測システムを構成する情報処理装置の機能構成を示す図である。 右足が麻痺した被検者の足圧分布データを示す図である。 足圧分布を前方部分と後方部分とに分割するための分割位置を示す分割線を算出する分割位置算出処理の流れを示すフローチャートである。 各足の前後方向の体重移動を定量化するための体重移動定量化処理の流れを示すフローチャートである。 分割位置算出処理において計測された複数の足圧分布データを示す図である。 複数の足圧分布データを重ね合わせることにより生成された足圧分布データを示す図である。 分割位置を示す分割線を説明するための図である。 体重移動定量化処理において表示された足圧分布データを示す図である。 The accompanying drawings are included in the specification, constitute a part thereof, show an embodiment of the present invention, and are used to explain the principle of the present invention together with the description.
It is a figure which shows the external appearance structure of the foot pressure distribution measurement system which concerns on 1st Embodiment of this invention. It is a figure which shows the function structure of the information processing apparatus which comprises a foot pressure distribution measurement system. It is a figure which shows the foot pressure distribution data of the subject who paralyzed the right foot. It is a flowchart which shows the flow of the division | segmentation position calculation process which calculates the division line which shows the division | segmentation position for dividing | segmenting foot pressure distribution into a front part and a back part. It is a flowchart which shows the flow of the weight shift quantification process for quantifying the weight shift of the front-back direction of each leg | foot. It is a figure which shows the some foot pressure distribution data measured in the division | segmentation position calculation process. It is a figure which shows the foot pressure distribution data produced | generated by superimposing several foot pressure distribution data. It is a figure for demonstrating the dividing line which shows a dividing position. It is a figure which shows the foot pressure distribution data displayed in the weight shift quantification process.
　以下、添付図面を参照して、本発明の好適な実施の形態について説明する。なお、各図において、同一の部材ないし要素については同一の参照番号を付し、重複する説明は省略する。 Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in each figure, the same reference number is attached | subjected about the same member thru | or element, and the overlapping description is abbreviate | omitted.
　［第１実施形態］
　＜１．足圧分布計測システムの外観構成＞
　第１実施形態における足圧分布計測システム１００について、図１を参照しながら説明する。図１は、第１実施形態の足圧分布計測システム１００における外観構成の一例を示す図である。図１に示すように、足圧分布計測システム１００は、足圧分布計測センサ１１０と情報処理装置１２０とを備える。 [First Embodiment]
<1. Appearance structure of foot pressure distribution measurement system>
A foot pressure distribution measurement system 100 according to the first embodiment will be described with reference to FIG. FIG. 1 is a diagram illustrating an example of an external configuration of a foot pressure distribution measurement system 100 according to the first embodiment. As shown in FIG. 1, the foot pressure distribution measurement system 100 includes a foot pressure distribution measurement sensor 110 and an information processing device 120.
　足圧分布計測センサ１１０は、センサ部１１１、ベース部１１２およびスロープ部１１３を備える。センサ部１１１は、複数の圧力センサが二次元的に配列されており、ベース部１１２に対して段差が生じないように埋め込まれている。センサ部１１１では、直立した被検者の両足が載置された場合に、センサ部１１１内に配された各圧力センサが当該圧力（荷重）を検知し、検知した荷重に対応した電気信号を出力することで、被検者の足圧分布データを所定の周期で計測することができる。 The foot pressure distribution measurement sensor 110 includes a sensor unit 111, a base unit 112, and a slope unit 113. A plurality of pressure sensors are two-dimensionally arranged in the sensor unit 111 and embedded in the base unit 112 so as not to cause a step. In the sensor unit 111, when both feet of an upright subject are placed, each pressure sensor arranged in the sensor unit 111 detects the pressure (load), and generates an electrical signal corresponding to the detected load. By outputting, it is possible to measure the foot pressure distribution data of the subject at a predetermined cycle.
　スロープ部１１３は、ベース部１１２の外周部側面に設けられており、足圧分布計測センサ１１０が載置された床面とベース部１１２との間の段差を滑らかにつないでいる。これにより、例えば、被検者が、センサ部１１１上に両足を載置する際に、つま先が床面とベース部１１２との間の段差に引っかかり、転倒してしまうといったリスクを回避することができる。 The slope portion 113 is provided on the side surface of the outer peripheral portion of the base portion 112, and smoothly connects the step between the floor surface on which the foot pressure distribution measurement sensor 110 is placed and the base portion 112. Thereby, for example, when the subject places both feet on the sensor unit 111, the risk that the toe gets caught in a step between the floor surface and the base unit 112 and falls down is avoided. it can.
　情報処理装置１２０は、センサ部１１１によって計測された足圧分布データをケーブル１３０を介して取得し、表示部２０４に表示する。また、被検者の各足の前後方向の体重移動を定量化したデータを足圧分布データとあわせて表示部２０４に表示する。 The information processing apparatus 120 acquires the foot pressure distribution data measured by the sensor unit 111 via the cable 130 and displays it on the display unit 204. Further, data obtained by quantifying the weight shift in the front-rear direction of each foot of the subject is displayed on the display unit 204 together with the foot pressure distribution data.
　＜２．足圧分布計測システムの情報処理装置の機能構成＞
　次に、情報処理装置１２０の機能構成について、図２を参照しながら説明する。図２は、足圧分布計測システム１００を構成する情報処理装置１２０の機能構成を示す図である。図２に示すように、情報処理装置１２０は、制御部（コンピュータ）２０１と、メモリ部２０２と、記憶部２０３と、表示部２０４と、入力部２０５と、外部機器Ｉ／Ｆ部２０６とを備え、各部は、バス２０７を介して接続されている。 <2. Functional configuration of information processing device of foot pressure distribution measurement system>
Next, the functional configuration of the information processing apparatus 120 will be described with reference to FIG. FIG. 2 is a diagram illustrating a functional configuration of the information processing apparatus 120 that configures the foot pressure distribution measurement system 100. As illustrated in FIG. 2, the information processing apparatus 120 includes a control unit (computer) 201, a memory unit 202, a storage unit 203, a display unit 204, an input unit 205, and an external device I / F unit 206. Each unit is connected via a bus 207.
　記憶部２０３には、制御部２０１によって実行されることで分割位置算出部２１１及び体重移動定量化処理部２１２として機能するプログラムが格納されている。当該プログラムは、制御部２０１による制御のもと、ワークエリアとして機能するメモリ部２０２に適宜読み込まれ、制御部２０１によって実行される。これにより、当該プログラムは、分割位置算出部２１１（取得手段、規定手段）及び体重移動定量化処理部２１２(算出手段、表示手段)として機能する。本実施形態の体重移動定量化処理部２１２では、各足の足圧分布データを前後方向に分割し、前方部分の荷重値（第１の荷重値）と後方部分の荷重値（第２の荷重値）とを算出することにより、各足の前後方向の体重移動を定量化する。また、分割位置算出部２１１では、体重移動定量化処理部２１２において各足の足圧分布を前後方向に分割する際の分割位置を示す分割線を算出する。なお、分割位置算出部２１１及び体重移動定量化処理部２１２の詳細については後述する。 The storage unit 203 stores a program that functions as the division position calculation unit 211 and the weight shift quantification processing unit 212 by being executed by the control unit 201. The program is appropriately read into the memory unit 202 functioning as a work area under the control of the control unit 201 and executed by the control unit 201. Thereby, the program functions as a division position calculation unit 211 (acquisition unit, definition unit) and a weight shift quantification processing unit 212 (calculation unit, display unit). In the weight movement quantification processing unit 212 of the present embodiment, the foot pressure distribution data of each foot is divided in the front-rear direction, and the load value of the front part (first load value) and the load value of the rear part (second load). Value), the weight shift in the front-rear direction of each foot is quantified. Further, the division position calculation unit 211 calculates a division line indicating a division position when the weight movement quantification processing unit 212 divides the foot pressure distribution of each foot in the front-rear direction. Details of the division position calculation unit 211 and the weight shift quantification processing unit 212 will be described later.
　表示部２０４は、ブラウン管や液晶などのディスプレイによって構成されており、制御部２０１に当該プログラムを実行させるためのユーザインタフェースを表示したり、取得した足圧分布データを表示したりする。入力部２０５は、キーボードやマウスなどによって構成されており、当該プログラムを実行させるための指示を入力する。外部機器Ｉ／Ｆ部２０６は、センサ部１１１において計測された足圧分布データを情報処理装置内に取り込むためのＩ／Ｆである。 The display unit 204 is configured by a display such as a cathode ray tube or a liquid crystal display, and displays a user interface for causing the control unit 201 to execute the program, or displays acquired foot pressure distribution data. The input unit 205 includes a keyboard, a mouse, and the like, and inputs an instruction for executing the program. The external device I / F unit 206 is an I / F for taking the foot pressure distribution data measured by the sensor unit 111 into the information processing apparatus.
　＜３．分割位置算出部の機能について＞
　次に、分割位置算出部２１１の機能について説明する。上述したように、分割位置算出部２１１では、体重移動定量化処理部２１２が体重移動定量化処理において各足の足圧分布を前後方向に分割する際の分割位置を示す分割線を算出する。以下、図３を参照しながら、分割位置算出部２１１の機能について詳細に説明する。 <3. Function of division position calculation unit>
Next, the function of the division position calculation unit 211 will be described. As described above, in the division position calculation unit 211, the weight movement quantification processing unit 212 calculates a division line indicating a division position when dividing the foot pressure distribution of each foot in the front-rear direction in the weight movement quantification processing. Hereinafter, the function of the division position calculation unit 211 will be described in detail with reference to FIG.
　図３は、右足が麻痺した被検者の足圧分布データを示す図である。図３に示すように、右足が麻痺した患者の場合、健常側の足（左足）と麻痺側の足（右足）とでは、足裏の接地領域が大きく異なっている。右足が麻痺した患者では、健常側の足（左足）は、足裏のうち、つま先側の一部とかかと側の一部とが接地しているのに対して、麻痺側の足（右足）は、つま先側の一部のみが接地している尖足の状態がある。 FIG. 3 is a diagram showing foot pressure distribution data of a subject whose right foot is paralyzed. As shown in FIG. 3, in the case of a patient whose right foot is paralyzed, the ground contact area of the sole is greatly different between the healthy foot (left foot) and the paralyzed foot (right foot). In patients with a paralyzed right foot, the foot on the healthy side (left foot) is partly on the toe side and part on the heel side of the sole, whereas the foot on the paralyzed side (right foot) Has a pointed state where only a part of the toe side is grounded.
　このため、麻痺側の足（右足）の足圧分布データのみでは、麻痺側の足（右足）の足裏全体の形状（足型）を把握することができず、前後方向に分割する際の分割位置を示す分割線を算出することができない。そこで、本実施形態に係る分割位置算出部２１１では、健常側の足（左足）の足圧分布データに基づいて算出した分割線を、麻痺側の足（右足）にも適用するよう構成されている。 For this reason, the shape of the sole of the foot (right foot) on the paralyzed side (right foot) cannot be grasped only with the foot pressure distribution data of the foot on the paralyzed side (right foot). A dividing line indicating the dividing position cannot be calculated. Therefore, the division position calculation unit 211 according to the present embodiment is configured to apply the division line calculated based on the foot pressure distribution data of the healthy foot (left foot) to the paralyzed foot (right foot). Yes.
　通常の場合は、健常側の足型を元に、つま先側の端点及びかかと側の端点を抽出し、両端点に基づいて分割位置を示す分割線を算出する。しかし、図３に示すように、健常側の足（左足）についても、足裏のうち、つま先側の一部とかかと側の一部のみが足圧分布データとして検出されているだけであり、つま先側の端点及びかかと側の端点までは検出することは難しい。つまり、各足の足圧分布データを前後方向に分割するにあたり、足裏全体の形状（足型）を正確に認識することができないため、足裏全体を２つに正確に分割するための中心位置を求めることができない場合がある。 In the normal case, the toe-side end points and the heel-side end points are extracted based on the healthy foot pattern, and the dividing line indicating the dividing position is calculated based on the both end points. However, as shown in FIG. 3, only the part of the toe side and the part of the heel side are detected as the foot pressure distribution data for the healthy side foot (left foot), It is difficult to detect the end point on the toe side and the end point on the heel side. In other words, when dividing the foot pressure distribution data of each foot in the front-rear direction, the shape of the entire sole (foot type) cannot be accurately recognized, so the center for accurately dividing the entire sole into two The position may not be determined.
　本実施形態に係る分割位置算出部２１１では、被検者に前方向に体重移動させた際（あるいはユーザ（例えば、理学療法士等）が被検者の足の甲を押した際）の足圧分布データ及び被検者に後方向に体重移動させた際（あるいはユーザが被検者のかかとを押した際）の足圧分布データをそれぞれ計測し、当該足圧分布データに基づいて足裏全体の形状（足型）を識別するとともに、つま先側の端点及びかかと側の端点を抽出し、両端点に基づいて分割位置を示す分割線を算出する構成としている。 In the division position calculation unit 211 according to the present embodiment, the foot when the subject is moved forward in weight (or when the user (for example, a physical therapist or the like presses the back of the subject's foot)). The pressure distribution data and the foot pressure distribution data when the subject is moved backward in weight (or when the user presses the heel of the subject) are measured, and the soles are measured based on the foot pressure distribution data. While identifying the whole shape (foot type), the toe side and heel side end points are extracted, and a dividing line indicating a dividing position is calculated based on the both end points.
　これにより、図３に示すような足圧分布データの場合でも、体重移動定量化処理部２１２による体重移動定量化処理において用いられる分割線を算出することができる。 Thereby, even in the case of the foot pressure distribution data as shown in FIG. 3, it is possible to calculate the dividing line used in the weight movement quantification processing by the weight movement quantification processing unit 212.
　＜４．分割位置算出部における処理の流れ＞
　次に、上記分割位置算出部２１１における分割位置算出処理の流れについて、図４Ａ及び図５～図７を用いて具体的に説明する。図４Ａは、分割位置算出部２１１における分割位置算出処理の流れを示すフローチャートである。 <4. Process Flow in Division Position Calculation Unit>
Next, the flow of the division position calculation process in the division position calculation unit 211 will be specifically described with reference to FIGS. 4A and 5 to 7. FIG. 4A is a flowchart showing the flow of the division position calculation process in the division position calculation unit 211.
　ステップＳ４０１では、被検者の指先部分が検出された足圧分布データとかかと部分が検出された足圧分布データを含む複数の足圧分布データを、足圧分布計測センサ１１０から取得する。具体的には、まず、被検者の体を前方向に体重移動させた際の、あるいは、ユーザ（例えば、理学療法士等）が被検者の足の甲を上から押した際の足圧分布データを取得する。 In step S401, a plurality of foot pressure distribution data including the foot pressure distribution data in which the fingertip portion of the subject is detected and the foot pressure distribution data in which the heel portion is detected is acquired from the foot pressure distribution measurement sensor 110. Specifically, first, when the subject's body is moved forward, or when the user (for example, a physical therapist) pushes the back of the subject's foot from above, Acquire pressure distribution data.
　図５の５ａは、被検者の体を前方向に体重移動させた際に、あるいは、ユーザが被検者の足の甲を上から押した際に計測された足圧分布データを示す図である。図５の５ａに示すように、被検者が前方向に体重移動することにより、あるいは、ユーザが被検者の足の甲を上から押すことにより、被検者の健常側の足（左足）のつま先まで荷重がかかるため、各指の指先部分が検出された足圧分布データを取得することができる。なお、分割位置算出部２１１では、このとき取得した足圧分布データを、記憶部２０３に記憶する。 5a in FIG. 5 is a diagram showing foot pressure distribution data measured when the body of the subject is moved forward, or when the user pushes the back of the subject's foot from above. It is. As shown in 5a of FIG. 5, when the subject moves weight forward, or when the user pushes the back of the subject's foot from above, the subject's healthy foot (left foot) ) Is applied to the toe, so that the foot pressure distribution data in which the fingertip portion of each finger is detected can be acquired. The division position calculation unit 211 stores the foot pressure distribution data acquired at this time in the storage unit 203.
　続いて、被検者の体を後方向に体重移動させた際に、あるいは、ユーザが被検者のかかとを上から押した際に計測された足圧分布データを取得する。 Subsequently, the foot pressure distribution data measured when the body of the subject is moved backward or when the user presses the heel of the subject from above is acquired.
　図５の５ｂは、被検者の体を後方向に体重移動させた際に、あるいは、ユーザ被検者の足のかかとを上から押した際に計測された足圧分布データを示している。図５の５ｂに示すように、被検者が後方向に体重移動することにより、あるいは、ユーザが被検者の足のかかとを上から押すことにより、被検者の健常側の足（左足）のかかとに荷重がかかるため、かかと部分が検出された足圧分布データを取得することができる。分割位置算出部２１１では、このとき取得した足圧分布データを、記憶部２０３に記憶する。 5b of FIG. 5 shows the foot pressure distribution data measured when the body of the subject is moved backward or when the heel of the user's subject's foot is pushed from above. . As shown in 5b of FIG. 5, when the subject moves backward in weight, or when the user pushes the heel of the subject's foot from above, the subject's healthy foot (left foot) ) Load is applied to the heel, and foot pressure distribution data in which the heel portion is detected can be acquired. The division position calculation unit 211 stores the foot pressure distribution data acquired at this time in the storage unit 203.
　このようにして、分割位置算出部２１１では、複数の足圧分布データを取得することができる。なお、本実施形態において分割位置算出部２１１は、前後方向に体重移動させることにより２つの足圧分布データを取得する場合について説明したが、本発明はこれに限定されず、例えば、被検者の体を前後方向に体重移動させることに加えて、左右方向に体重移動させることにより、３つ以上の足圧分布データを取得するように構成してもよい。また、１つの足圧分布データにより、後述する被検者の足型を識別できる際には、１つの足圧分布データのみを取得するように構成してもよい。 In this way, the division position calculation unit 211 can acquire a plurality of foot pressure distribution data. In the present embodiment, the division position calculation unit 211 has been described with respect to the case where two foot pressure distribution data are acquired by moving weight in the front-rear direction. However, the present invention is not limited to this, and for example, the subject In addition to moving the body weight in the front-rear direction, it may be configured to acquire three or more foot pressure distribution data by moving the body weight in the left-right direction. In addition, when one foot pressure distribution data can identify the foot type of the subject to be described later, only one foot pressure distribution data may be acquired.
　ステップＳ４０２では、記憶部２０３に記憶された複数の足圧分布データを用いて被検者の足型を識別する。上述したように、記憶部２０３に記憶された複数の足圧分布データには、各指の指先部分が検出された足圧分布データと、かかと部分が検出された足圧分布データとが含まれる。そこで、記憶部２０３に記憶された当該複数の足圧分布データを重ね合わせることで、被検者の足型を識別することができる。また、１つの足圧分布データのみを取得するように構成した場合には、当該１つの足圧分布データのみから被検者の足型を識別する。 In step S402, the foot pattern of the subject is identified using a plurality of foot pressure distribution data stored in the storage unit 203. As described above, the plurality of foot pressure distribution data stored in the storage unit 203 includes the foot pressure distribution data in which the fingertip portion of each finger is detected and the foot pressure distribution data in which the heel portion is detected. . Therefore, the foot pattern of the subject can be identified by superimposing the plurality of foot pressure distribution data stored in the storage unit 203. In the case where only one foot pressure distribution data is acquired, the foot shape of the subject is identified only from the one foot pressure distribution data.
　複数の足圧分布データを重ね合わせる構成においては、具体的には、図５の５ａに示す足圧分布データと図５の５ｂに示す足圧分布データとを重ね合わせることにより、図６に示す足圧分布データを生成することができる。図６は、図５の５ａに示す足圧分布データと、図５の５ｂに示す足圧分布データとを重ねあわせることにより生成された足圧分布データである。このように記憶部２０３に記憶された複数の足圧分布データを重ね合わせることにより分割位置算出部２１１では、被検者の足型６０１を識別することができる。１つの足圧分布データのみを取得するように構成した場合においては、このような重ね合わせは不要である。なお、識別した足型６０１は、記憶部２０３に記憶される。 In the configuration in which a plurality of foot pressure distribution data are overlaid, specifically, the foot pressure distribution data shown in 5a of FIG. 5 and the foot pressure distribution data shown in 5b of FIG. Foot pressure distribution data can be generated. FIG. 6 is foot pressure distribution data generated by superimposing the foot pressure distribution data shown in 5a of FIG. 5 and the foot pressure distribution data shown in 5b of FIG. In this way, by dividing the plurality of foot pressure distribution data stored in the storage unit 203, the division position calculation unit 211 can identify the foot pattern 601 of the subject. In a case where only one foot pressure distribution data is acquired, such superposition is not necessary. Note that the identified footprint 601 is stored in the storage unit 203.
　ステップＳ４０３では、ステップＳ４０２において識別した足型６０１に基づいて、つま先側の前方部分とかかと側の後方部分とを規定する。具体的には、図７に示すように、ステップＳ４０２で識別した足型６０１に基づいて、つま先側の端点とかかと側の端点とを抽出し、つま先側の端点とかかと側の端点との中心位置を算出する。更に、算出した中心位置を通り、足型６０１の長軸方向に略直交する線を分割線７０１として規定し、当該分割線７０１よりもつま先側の部分を前方部分と規定し、かかと側の部分を後方部分と規定する。 In step S403, the front part on the toe side and the rear part on the heel side are defined based on the foot mold 601 identified in step S402. Specifically, as shown in FIG. 7, the toe side end point and the heel side end point are extracted based on the foot mold 601 identified in step S402, and the center between the toe side end point and the heel side end point is extracted. Calculate the position. Further, a line that passes through the calculated center position and is substantially perpendicular to the long axis direction of the foot mold 601 is defined as a dividing line 701, a toe side portion with respect to the dividing line 701 is defined as a front portion, and a heel side portion. Is defined as the rear part.
　ステップＳ４０４では、ステップＳ４０３において規定された前方部分及び後方部分を示す位置座標を記憶部２０３に記憶する。 In step S404, the position coordinates indicating the front part and the rear part defined in step S403 are stored in the storage unit 203.
　＜５．体重移動定量化処理部における処理の流れ＞
　次に体重移動定量化処理部２１２における体重移動定量化処理の流れについて図４Ｂ及び図８を用いて説明する。図４Ｂは、体重移動定量化処理部２１２における体重移動定量化処理の流れを示すフローチャートである。 <5. Process Flow in Weight Movement Quantification Processing Unit>
Next, the flow of weight shift quantification processing in the weight shift quantification processing unit 212 will be described with reference to FIGS. 4B and 8. FIG. 4B is a flowchart showing the flow of weight shift quantification processing in the weight shift quantification processing unit 212.
　ステップＳ４１１では、被検者が直立した状態における足圧分布データを足圧分布計測センサ１１０から取得し、表示する。ステップＳ４１２では、ステップＳ４１１において取得した足圧分布データに、記憶部２０３に記憶された足型６０１を重ね合わせる。 In step S411, foot pressure distribution data in a state where the subject is upright is acquired from the foot pressure distribution measurement sensor 110 and displayed. In step S412, the foot mold 601 stored in the storage unit 203 is superimposed on the foot pressure distribution data acquired in step S411.
　ステップＳ４１３では、ステップＳ４１１において取得された足圧分布データのうち、記憶部２０３に記憶された前方部分の位置座標に対応する各圧力センサの圧力データを加算することにより、前方部分に加えられた荷重の合計値を算出する。更に、ステップＳ４１１において取得された足付分布データのうち、記憶部２０３に記憶された後方部分の位置座標に対応する各圧力センサの圧力データを加算することにより、後方部分に加えられた荷重の合計値を算出する。 In step S413, the pressure data of each pressure sensor corresponding to the position coordinates of the front part stored in the storage unit 203 among the foot pressure distribution data acquired in step S411 is added to the front part. Calculate the total load. Furthermore, by adding the pressure data of each pressure sensor corresponding to the position coordinates of the rear part stored in the storage unit 203 among the foot distribution data acquired in step S411, the load applied to the rear part is calculated. Calculate the total value.
　ステップＳ４１４では、ステップＳ４１３において算出された前方部分に加えられた荷重の合計値と後方部分に加えられた荷重の合計値とを比較可能に表示部２０４に表示する。なお、本実施形態では、ステップＳ４１３において、更に、前方部分に加えられた荷重の合計値と後方部分に加えられた荷重の合計値との比率を算出し、ステップＳ４１４において、その比率を荷重の合計値とともに表示部２０４に表示するように構成してもよい。 In step S414, the total value of the load applied to the front part calculated in step S413 and the total value of the load applied to the rear part are displayed on the display unit 204 so that they can be compared. In the present embodiment, in step S413, a ratio between the total value of loads applied to the front part and the total value of loads applied to the rear part is calculated, and in step S414, the ratio is calculated based on the load. You may comprise so that it may display on the display part 204 with a total value.
　図８は、ステップＳ４１１において取得された足圧分布データに、足型６０１を重ね合わせた上で、前方部分に加えられた荷重の合計値及び後方部分に加えられた荷重の合計値、ならびに、前方部分に加えられた荷重の合計値と後方部分に加えられた荷重の合計値との比率を表示部２０４に表示した様子を示している。 FIG. 8 illustrates the total value of the load applied to the front portion and the total value of the load applied to the rear portion after the foot mold 601 is superimposed on the foot pressure distribution data acquired in step S411, and A state in which the ratio between the total value of loads applied to the front part and the total value of loads applied to the rear part is displayed on the display unit 204 is shown.
　このように、前方部分に加えられた荷重の合計値と後方部分に加えられた荷重の合計値との比率を表示部２０４にリアルタイムに表示する構成とすることで、被検者の前後方向の体重移動を定量的に把握することが可能となる。 In this way, the ratio of the total value of the load applied to the front part and the total value of the load applied to the rear part is displayed in real time on the display unit 204, so that It becomes possible to grasp the weight shift quantitatively.
　なお、図８の例では、被検者の一方の足（健常側の足（左足））について足型を識別し、その足型に基づいて、前方部分および後方部分を規定する場合について説明したが、被検者の他方の足（麻痺側の足（右足））については、健常側の足（左足）において識別した足型６０１を代用することにより、前方部分および後方部分を規定することができる。 In the example of FIG. 8, the case is described in which the foot shape is identified for one foot (health foot (left foot)) of the subject and the front portion and the rear portion are defined based on the foot shape. However, for the other leg of the subject (paralysis side leg (right leg)), the front part and the rear part can be defined by substituting the foot type 601 identified in the healthy side leg (left leg). it can.
　例えば、分割位置算出部２１１では、ステップＳ４０２において認識された健常側の足（左足）の足型を、麻痺側の足（右足）に合うように左右反転（変更）して適用する。これにより、麻痺側の足（右足）についても前方部分および後方部分を規定することができる。 For example, the division position calculation unit 211 applies the foot shape of the healthy foot (left foot) recognized in step S402 by horizontally flipping (changing) the foot shape so as to fit the paralyzed foot (right foot). Thereby, a front part and a back part can be specified also about a leg (right leg) on the paralysis side.
　以上の説明から明らかなように、第１実施形態の足圧分布計測システムでは、
分割位置算出部を設け、被検者の各指の指先部分が検出された足圧分布データとかかと部分が検出された足圧分布データとを取得し、これらの足圧分布データを重ね合わせることで、被検者の足型を識別する構成とした。また、識別した足型に基づいて分割線を算出することで、前方部分と後方部分とを規定する構成とした。 As is clear from the above description, in the foot pressure distribution measurement system of the first embodiment,
A division position calculation unit is provided to acquire foot pressure distribution data in which the fingertip portion of each finger of the subject is detected and foot pressure distribution data in which the heel portion is detected, and superimpose these foot pressure distribution data Thus, it is configured to identify the foot shape of the subject. Moreover, it was set as the structure which prescribes | regulates a front part and a rear part by calculating a dividing line based on the identified foot type | mold.
　そして、体重移動定量化処理部にて足圧分布データを表示するにあたり、前方部分に対応する荷重の合計値と後方部分に対応する荷重の合計値との比率を合わせて表示する構成とした。 And when displaying foot pressure distribution data in the body weight movement quantification processing unit, the ratio of the total value of loads corresponding to the front part and the total value of loads corresponding to the rear part is displayed together.
　この結果、被検者の各足の前後方向の体重移動を定量的に把握することが可能となった。 As a result, it became possible to quantitatively grasp the weight shift in the front-rear direction of each foot of the subject.
　［第２実施形態］
　第１実施形態の足圧分布計測システム１００では、情報処理装置１２０が、足圧分布計測センサ１１０によって計測された足圧分布データを、ケーブル１３０を介して直接取得する構成としたが、本発明はこれに限定されない。例えば、情報処理装置１２０が、ブルートゥースなどの無線を介して取得する構成としてもよい。 [Second Embodiment]
In the foot pressure distribution measurement system 100 according to the first embodiment, the information processing device 120 directly acquires the foot pressure distribution data measured by the foot pressure distribution measurement sensor 110 via the cable 130. Is not limited to this. For example, the information processing apparatus 120 may be configured to acquire via wireless such as Bluetooth.
　また、足圧分布計測センサ１１０内にメモリを配し、足圧分布計測センサ１１０において計測された足圧分布データを一旦当該メモリに記憶しておくように構成してもよい。このように構成した場合、足圧分布計測センサ１１０が情報処理装置１２０にケーブル１３０を介して接続できる距離に設置できないとき、即ち、ケーブル１３０の長さが足りないときであっても、所定の場所で足圧分布データを計測することができる。この場合、足圧分布データを計測した後で足圧分布計測センサ１１０を情報処理装置１２０にケーブル１３０を介して接続し、情報処理装置１２０に当該足圧分布データを取得させることができる。 Further, a memory may be arranged in the foot pressure distribution measurement sensor 110, and the foot pressure distribution data measured by the foot pressure distribution measurement sensor 110 may be temporarily stored in the memory. In such a configuration, even when the foot pressure distribution measurement sensor 110 cannot be installed at a distance that can be connected to the information processing apparatus 120 via the cable 130, that is, when the length of the cable 130 is not sufficient, Foot pressure distribution data can be measured at a location. In this case, after the foot pressure distribution data is measured, the foot pressure distribution measurement sensor 110 can be connected to the information processing apparatus 120 via the cable 130 to cause the information processing apparatus 120 to acquire the foot pressure distribution data.
　また、第１実施形態では、足圧分布計測センサ１１０が１つのベース部１１２および１つのセンサ部１１１によって形成される構成としたが、本発明はこれに限定されない。例えば、ベース部１１２およびセンサ部１１１をそれぞれ、右足用および左足用の別体とし、着脱可能な構成または折り畳み可能な構成としてもよい。この場合、スロープ部１１３は、ベース部１１２に対して着脱可能に構成されてもよい。 In the first embodiment, the foot pressure distribution measurement sensor 110 is formed by one base portion 112 and one sensor portion 111, but the present invention is not limited to this. For example, the base portion 112 and the sensor portion 111 may be separate for the right foot and the left foot, respectively, and may be configured to be detachable or foldable. In this case, the slope portion 113 may be configured to be detachable from the base portion 112.
　更に、上記第１実施形態の分割位置算出部２１１では、ステップＳ４０２において、複数の足圧分布データに基づいて足型を識別する構成としたが、本発明はこれに限定されず、足型以外の他の図形（例えば、四角形あるいは楕円形）を用いるように構成してもよい。 Furthermore, in the division position calculation unit 211 of the first embodiment, the foot shape is identified based on a plurality of foot pressure distribution data in step S402. However, the present invention is not limited to this, and other than the foot shape. Another figure (for example, a quadrangle or an ellipse) may be used.
　なお、上記の実施形態では、自動で被検者の足裏の前方部分と後方部分とを規定する規定手段を有する構成を説明しているが、それに限定されない。例えば、規定手段は、理学療法士が手動で脚の中心位置を入力するように構成されていてもよい。 In addition, although said embodiment demonstrated the structure which has a prescription | regulation means which prescribes | regulates the front part and back part of a subject's sole automatically, it is not limited to it. For example, the defining means may be configured such that the physical therapist manually inputs the center position of the leg.
　また、上記の実施形態では、前方部分と後方部分の位置座標を固定しているが、計測途中で足が動く可能性があるため、その際には、位置座標を更新できるように構成してもよい。 In the above embodiment, the position coordinates of the front part and the rear part are fixed. However, since the foot may move during the measurement, the position coordinates can be updated. Also good.
　本発明は上記実施の形態に制限されるものではなく、本発明の精神及び範囲から離脱することなく、様々な変更及び変形が可能である。従って、本発明の範囲を公にするために、以下の請求項を添付する。 The present invention is not limited to the above embodiment, and various changes and modifications can be made without departing from the spirit and scope of the present invention. Therefore, in order to make the scope of the present invention public, the following claims are attached.

Claims (11)

  1. 　複数の圧力センサが配列されたセンサ部と接続され、被検者の足圧分布データを算出する情報処理装置であって、
    　前記被検者の足圧分布データにおいて、前記被検者の足裏の前方部分と後方部分とを規定する規定手段と、
    　前記被検者の足圧分布データのうち、前記前方部分において検出された足圧分布データを加算することにより得られた第１の荷重値と、前記後方部分において検出された足圧分布データを加算することにより得られた第２の荷重値とを算出する算出手段と、
    　前記算出手段により算出された前記第１の荷重値と前記第２の荷重値とを比較可能に表示する表示手段と、
    　を備えることを特徴とする情報処理装置。     An information processing apparatus that is connected to a sensor unit in which a plurality of pressure sensors is arranged and calculates foot pressure distribution data of a subject,
    In the foot pressure distribution data of the subject, a defining means for defining a front portion and a rear portion of the sole of the subject,
    Of the foot pressure distribution data of the subject, the first load value obtained by adding the foot pressure distribution data detected in the front portion and the foot pressure distribution data detected in the rear portion. A calculating means for calculating a second load value obtained by adding,
    Display means for displaying the first load value calculated by the calculation means and the second load value in a comparable manner;
    An information processing apparatus comprising:
  2. 　前記被検者の指先部分が検出された足圧分布データと前記被検者のかかと部分が検出された足圧分布データとを含む複数の足圧分布データを取得する取得手段を更に有し、
    　前記規定手段は、前記取得手段により取得された前記足圧分布データに基づいて前記被検者の足裏の形状を識別し、前記被検者の足裏の前方部分と後方部分とを規定する、ことを特徴とする請求項１に記載の情報処理装置。     Further comprising an acquisition means for acquiring a plurality of foot pressure distribution data including the foot pressure distribution data in which the fingertip portion of the subject is detected and the foot pressure distribution data in which the heel portion of the subject is detected;
    The defining means identifies the shape of the sole of the subject based on the foot pressure distribution data acquired by the acquiring means, and defines a front portion and a rear portion of the subject's sole. The information processing apparatus according to claim 1.
  3. 　前記取得手段は、前記被検者の複数の足圧分布データを取得し、
    　前記規定手段は、前記複数の足圧分布データを重ね合わせることで前記被検者の足裏の形状を識別し、前記被検者の足裏の前方部分と後方部分とを規定する、ことを特徴とする請求項２に記載の情報処理装置。     The acquisition means acquires a plurality of foot pressure distribution data of the subject,
    The defining means identifies the shape of the sole of the subject by overlapping the plurality of foot pressure distribution data, and defines a front portion and a rear portion of the subject's foot. The information processing apparatus according to claim 2.
  4. 　前記規定手段は、前記被検者の足裏のつま先側の端点と、かかと側の端点との間の所定の位置を通り、前記被検者の足裏の長軸方向に略直交する方向に延びる分割線により、前記前方部分と前記後方部分とを規定することを特徴とする請求項２に記載の情報処理装置。 The defining means passes through a predetermined position between an end point on the toe side of the sole of the subject and an end point on the heel side, and is in a direction substantially orthogonal to the major axis direction of the sole of the subject. The information processing apparatus according to claim 2, wherein the front part and the rear part are defined by an extending dividing line.
  5. 　前記所定の位置は、前記被検者の足裏のつま先側の端点と、かかと側の端点との間の中心位置であることを特徴とする請求項４に記載の情報処理装置。 The information processing apparatus according to claim 4, wherein the predetermined position is a center position between a toe side end point and a heel side end point of the subject's sole.
  6. 　前記規定手段は、前記被検者の一方の足の前記複数の足圧分布データに基づいて規定した前記前方部分と前記後方部分とに基づいて、前記被検者の他方の足の前方部分と後方部分とを規定することを特徴とする請求項２乃至５のいずれか１項に記載の情報処理装置。 The defining means includes a front portion of the subject's other foot based on the front portion and the rear portion defined based on the plurality of foot pressure distribution data of one foot of the subject. 6. The information processing apparatus according to claim 2, wherein a rear portion is defined.
  7. 　前記算出手段は、前記第１の荷重値と前記第２の荷重値との比率を算出し、
    　前記表示手段は、前記第１の荷重値と前記第２の荷重値との比率を表示する、ことを特徴とする請求項１乃至６のいずれか１項に記載の情報処理装置。     The calculating means calculates a ratio between the first load value and the second load value;
    The information processing apparatus according to claim 1, wherein the display unit displays a ratio between the first load value and the second load value.
  8. 　前記表示手段は、更に、前記規定手段により識別された前記被検者の足裏の形状を表示することを特徴とする請求項１乃至７のいずれか１項に記載の情報処理装置。 8. The information processing apparatus according to claim 1, wherein the display unit further displays a shape of a sole of the subject identified by the defining unit.
  9. 　前記表示手段は、更に、前記算出手段により算出された第１の荷重値と前記第２の荷重値とを表示することを特徴とする請求項８に記載の情報処理装置。 The information processing apparatus according to claim 8, wherein the display means further displays the first load value and the second load value calculated by the calculation means.
  10. 　請求項１乃至９のうちいずれか１項に記載の情報処理装置と、
    　複数の圧力センサが配列されたセンサ部と
    　を備えることを特徴とする足圧分布計測システム。     An information processing apparatus according to any one of claims 1 to 9,
    A foot pressure distribution measuring system comprising: a sensor unit in which a plurality of pressure sensors are arranged.
  11. 　請求項１乃至９のうちいずれか１項に記載の情報処理装置の各手段を、コンピュータに実行させるためのプログラム。 A program for causing a computer to execute each means of the information processing apparatus according to any one of claims 1 to 9.
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