JP2006312029A - Support device for gait training - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the size and lower the cost of a support device for gait training, while analyzing the load state at high level. <P>SOLUTION: In this device, a display control part 142 instructs a person to be measured to step on a pressure distribution sensor 11. An analyzing part 131 analyzes the load state of the person to be measured when he steps on based upon the pressure distribution data from the pressure distribution sensor 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a walking training support device that supports walking training performed to recover a walking function when the walking function is deteriorated due to aging, illness, injury, or the like.

  As a walking training support device for improving the walking function, a pressure distribution sensor that enables the subject to walk is provided, and the load applied to the sole and the foot position when the subject walks on the pressure distribution sensor are measured. The technique to do is known (refer patent document 1). According to this technology, the walking state of the subject can be digitized, the difference from the ideal walking state can be objectively grasped, and walking training can be performed efficiently. In addition, a technology is known that includes a load cell that can obtain the position of the center of gravity of the subject in the standing position, and performs training for the subject to move the position of the center of gravity so as to coincide with the instructed center of gravity (Patent Document 2). reference).

Japanese Unexamined Patent Publication No. 2000-308698 (FIGS. 1 and 2) Japanese Unexamined Patent Publication No. 07-275307 (FIG. 4)

  According to the technique of Patent Document 1, since the subject needs to increase the area of the pressure distribution sensor in order to perform normal walking, the apparatus becomes large. In addition, since the pressure distribution sensor is expensive, the manufacturing cost of the device increases. On the other hand, according to the technique of Patent Document 2, the device is downsized and the manufacturing cost is low because an inexpensive load cell is used, but the load cell can obtain the position of the subject's center of gravity, Since the foot pressure distribution cannot be obtained, it is not possible to perform advanced analysis on the walking state.

  A main object of the present invention is to provide a walking training support device that can achieve downsizing and cost reduction while performing advanced analysis of a load state.

Means for Solving the Problems and Effects of the Invention

  A walking training support apparatus according to the present invention includes a pressure distribution sensor having a plurality of pressure detection areas for detecting pressures applied from a person to be measured, and an instruction unit for instructing the person to be measured to step on the pressure distribution sensor. Corresponding to the pressure detected in each of the plurality of pressure detection areas included in the pressure distribution data from the pressure distribution sensor when the measurement subject steps on the pressure distribution sensor based on the instruction means. And analyzing means for analyzing the load state of the measurement subject on the pressure distribution sensor based on the output value.

  According to the present invention, since the person to be measured does not move on the pressure distribution sensor, the pressure distribution sensor can be made small. This makes it possible to reduce the size and cost of the walking training support device by downsizing the pressure distribution sensor while performing advanced analysis of the load state when the measurement subject steps on the pressure distribution sensor. it can.

  In the present invention, the analysis means includes a one-foot center-of-gravity position calculating means for calculating a center-of-gravity position of one foot of the person to be measured on the pressure distribution sensor, and one foot of the person to be measured on the pressure distribution sensor; The one foot center of gravity locus length calculating means for calculating the one foot center of gravity locus length which is the locus length of the center of gravity position of the one foot calculated by the one foot center of gravity position calculating means within the contact area is preferably included. According to this, the stability of each foot at the time of stepping can be measured.

  Further, in the present invention, the analysis means calculates a gravity center position calculation means for calculating the gravity center position of the measurement subject on the pressure distribution sensor, and the gravity center calculated by the gravity center position calculation means on the pressure distribution sensor. It is preferable to include a specific step outer periphery area calculating means for calculating a specific step outer periphery area obtained by dividing the area of the region where the locus of the position is drawn by the distance between the left and right feet when the measurement subject steps. . According to this, even when the step of the measurement subject fluctuates, the gravity center fluctuation of the measurement subject can be accurately measured.

  From another viewpoint, the walking training support apparatus according to the present invention includes a pressure distribution sensor having a plurality of pressure detection areas for detecting pressures applied by a person to be measured, and a target to jump on the pressure distribution sensor. Each of the plurality of pressure detection regions included in the pressure distribution data from the pressure distribution sensor when the measurement target jumps on the pressure distribution sensor based on the instruction means And analyzing means for analyzing the load state of the person to be measured on the pressure distribution sensor based on the output value corresponding to the pressure detected in step (b).

  According to the present invention, it is only necessary that the person to be measured can jump on the pressure distribution sensor, so the pressure distribution sensor can be made small. This makes it possible to reduce the size and cost of the walking training support device by downsizing the pressure distribution sensor while performing advanced analysis of the load state when the measured person jumps with the pressure distribution sensor. it can.

  Further, in the present invention, the analysis means calculates a jump time that is a time from when the load of the person to be measured disappears on the pressure distribution sensor until the load of the person to be measured appears again. It is preferable that the calculation means is included. According to this, it is possible to measure the leg strength and stability of the measurement subject at the time of jumping.

  Furthermore, in the present invention, the analysis means calculates a gravity center position calculation means for calculating the gravity center position of the measurement subject on the pressure distribution sensor, and a jumping gravity center that is a locus length of the gravity center position calculated by the gravity center position calculation means. It is preferable to include jumping gravity center locus length calculating means for calculating the locus length. According to this, it is possible to measure the accurate center-of-gravity fluctuation of the measurement subject at the time of jumping.

  In these aspects of the present invention, the analyzing means calculates the center-of-gravity position calculation means for calculating the center-of-gravity position of the person to be measured on the pressure distribution sensor, and the plurality of pressure detection areas included in the pressure distribution data from the pressure distribution sensor. A comparison means for comparing an output value corresponding to the pressure detected by each of the pressure and a threshold value, and the comparison means detects each of the plurality of pressure detection areas included in the pressure distribution data from the pressure distribution sensor. When a comparison result is obtained that the output value corresponding to the pressure is equal to or greater than the threshold value, a first conversion unit that converts the output value to a first predetermined value, and the comparison unit from the pressure distribution sensor When a comparison result is obtained that the output value corresponding to the pressure detected in each of the plurality of pressure detection areas included in the pressure distribution data is smaller than the threshold value. And a second conversion means for converting the output values into a second predetermined value different from the first predetermined value, and an output from the measured person converted into the first predetermined value by the first conversion means. Based on the position of the center of gravity of the person to be measured when the pressure corresponding to the value and the output value converted to the second predetermined value by the second conversion means is applied to each of the plurality of pressure detection regions, A reference position calculating means for calculating a reference position serving as a reference for the position of the center of gravity of the measurement subject on the pressure distribution sensor; a center position calculated by the center of gravity position calculating means; and a reference position calculated by the reference position calculating means. A central displacement length calculating means for calculating a central displacement length as a relative distance every sampling time, and a total central displacement length obtained by integrating the central displacement lengths calculated by the central displacement length calculating means within the measurement time. Preferably contains a total center displacement length calculating means for. According to this, by calculating the reference position for each sampling time within the measurement time, when the subject's center of gravity position and the contact area with the measurement subject in the pressure distribution sensor change during stepping, A total center displacement length having a high correlation can be calculated. Thereby, it is possible to accurately measure the degree of fluctuation of the measurement subject.

  Further, in the present invention, the analysis means calculates each step gravity center position calculation means for calculating the gravity center position of each step of the measurement subject on the pressure distribution sensor, and each step gravity center position calculation means calculated by each of the step gravity center positions calculation means. It is preferable to include variation degree calculation means for calculating the variation degree of the gravity center position of each foot of the measurement subject based on the gravity center position of the step. According to this, it is possible to grasp the degree of lightness of the measurement subject by measuring the degree of variation that is highly related to the degree of lightness.

  Further, in the present invention, the degree-of-variation calculating means relates to the distance in the front-rear direction and the left-right direction from the center of gravity of the m-2th step (m is a positive integer) to the center of gravity of the m-th step. The variation degree may be calculated by integrating at least one of the distances.

  Alternatively, the degree-of-variation calculating means calculates the degree of variation by integrating the distance from the center of gravity of the m-2th step (m is a positive integer) of the measurement subject to the center of gravity of the m-th step. Also good. According to these, the variation degree of the person to be measured can be accurately measured.

  Each of the step gravity center position calculation means for calculating the gravity center position of each step of the measurement subject on the pressure distribution sensor by the analysis means, and the n−1th step (n is the nth step calculated by each of the step gravity center position calculation means) It is preferable to include a center point movement locus length calculating means for calculating a movement locus length of the center point between the gravity center position of (positive integer) and the gravity center position of the nth step. According to this, it is possible to measure a change in the position of the person to be measured on the pressure distribution sensor when the step is performed. Thereby, it is possible to accurately grasp the degree of fluctuation of the measurement subject.

  Each step center of gravity position calculating means is configured such that only the left foot of the measured person is positioned on the pressure distribution sensor, the center position of the measured person located on the leftmost side, and only the right foot of the measured person is the It is preferable to calculate the position of the center of gravity of the person to be measured located on the rightmost side when placed on the pressure distribution sensor as the position of the center of gravity of each step of the person to be measured. According to this, it is possible to reliably reflect the degree of wobbling of the measurement subject on the position of the center of gravity of each step.

<First Embodiment>
Hereinafter, a first embodiment according to the present invention will be described with reference to the drawings. FIG. 1 is an external view showing a schematic configuration of the walking training support apparatus of the first embodiment. FIG. 2 is a block diagram showing a schematic configuration of the walking training support apparatus of FIG.

  A walking training support apparatus 1 shown in FIG. 1 includes a sheet-like pressure distribution sensor 11, a pressure detection unit 12 connected to the pressure distribution sensor 11, a personal computer (personal computer) 20, a pressure detection unit 12, and a personal computer 20. And a connection unit 40 for connecting the two. The connection unit 40 includes an interface box 45 and an interface cable 46, and both ends thereof are connected to the pressure detection unit 12 and input / output interfaces (not shown) of the personal computer 20. The walking training support device 1 analyzes the load state of the measurement subject when the measurement subject performs a predetermined operation on the pressure distribution sensor 11.

  The pressure distribution sensor 11 includes a large number of pressure-sensitive sensors 11a that are pressure detection areas for detecting pressure applied from both feet of the measurement subject when the measurement subject stands on the grid. . The pressure detection unit 12 is connected to each of a number of pressure sensitive sensors 11a and detects the state of each pressure sensitive sensor 11a. In the present embodiment, the thickness of the pressure distribution sensor 11 is about 0.1 to 0.2 mm. Here, in this embodiment, the state of each pressure-sensitive sensor 11 a is represented by a digital output value of 0 to 255 corresponding to the pressure applied thereto, and the output value is output to the personal computer 20.

  Thus, in the present embodiment, a detection plate having sufficient rigidity for the person to be measured to stand on it is not necessary, and both feet of the person to be measured can be placed on the pressure distribution sensor 11. In addition, the magnitude | size of the pressure distribution sensor 11 is determined by the operation | movement content of the to-be-measured person on the pressure distribution sensor 11 at the time of measurement. The pressure distribution sensor 11 can be used as a single sheet, but a rubber sheet may be laminated for buffering from the viewpoint of protecting the sheet. Further, for the purpose of facilitating the setting on the floor, the sensor may be laminated on a metal or resin plate such as aluminum that holds the sensor.

  The personal computer 20 includes a display 21, a keyboard 25, a mouse 26, and a control unit 30 (see FIG. 2). Here, the control unit 30 generates a signal for controlling the operation of each part of the walking training support device 1, a hard disk storing a walking training support program and data for controlling various operations related to the walking training support device 1, and the like. Therefore, a CPU for executing various calculations, a RAM for temporarily storing data such as calculation results in the CPU, and the like are included.

  As shown in FIG. 2, the control unit 30 includes a pressure distribution data storage unit 132, an analysis unit 131, a gravity center position storage unit 138, a reference position storage unit 139, a center displacement length storage unit 140, and a display control unit. 142. In addition, a display 21, a keyboard 25, and a mouse 26 are connected to the control unit 30.

  The pressure distribution data storage unit 132 stores the pressure distribution data transmitted from the pressure detection unit 12 to the personal computer 20 via the connection unit 40. The pressure distribution data storage unit 132 stores pressure distribution data for every sample time within the measurement time for each of a number of pressure sensitive sensors 11 a arranged in a grid pattern on the pressure distribution sensor 11. That is, the pressure distribution data of many pressure-sensitive sensors 11a at one detection time corresponding to each sample time is stored for the number of detection times. Accordingly, it is possible to grasp the temporal change in pressure detected by each pressure sensor 11a based on the pressure distribution data. Further, a temporal change in the pressure distribution detected by the pressure distribution sensor 11 can be detected.

  Based on the pressure distribution data stored in the pressure distribution data storage unit 132, the analysis unit 131 analyzes a load state when the person to be measured steps on the pressure distribution sensor 11. The content of the stepping action will be described with reference to FIG. FIG. 3 is a diagram showing the contents of the stepping action. In addition, the foot shape shown in the figure has shown the arrangement position of the to-be-measured person's leg arrange | positioned on the pressure distribution sensor 11. FIG. Moreover, the curve in the figure shows the locus of the center of gravity position of the measurement subject.

  As shown in FIG. 3, in the stepping, the person to be measured is an operation in which only the left foot is disposed on the pressure distribution sensor 11 near the center of the pressure distribution sensor 11 and only the right foot is disposed on the pressure distribution sensor 11. The operation is alternately performed. At this time, a trajectory is drawn such that the position of the center of gravity of the measurement subject reciprocates between both feet. Thus, in stepping, the subject's movement includes a state in which one foot of the person to be measured is separated from the pressure distribution sensor. That is, the position of the center of gravity of the measurement subject and the contact position of the sole change.

  Returning to FIG. 2, the analysis unit 131 includes a centroid calculation unit 133, a comparison unit 134, a conversion unit 135, a reference position calculation unit 136, a center displacement length calculation unit 137, and a parameter calculation unit 141. ing.

  The center-of-gravity calculation unit 133 calculates the center-of-gravity position of the measurement subject on the pressure distribution sensor 11 at each detection time based on the pressure distribution data stored in the pressure distribution data storage unit 132, and the calculated center-of-gravity position The information is stored in the storage unit 138.

  A calculation method of the center of gravity position in the center of gravity calculation unit 133 will be described with reference to FIG. FIG. 4 shows pressure distribution data detected by a number of pressure sensitive sensors 11a in a predetermined time. In the pressure distribution sensor 11 of the present embodiment, a large number of pressure-sensitive sensors 11a are arranged in m + 1 rows in the X-axis direction (left-right direction) and in n + 1 rows in the Y-axis direction (up-down direction). . Therefore, a large number of pressure-sensitive sensors 11a are arranged in a (m + 1) × (n + 1) lattice shape.

  Moreover, in FIG. 4, the pressure data detected by each pressure sensor 11a is shown by the symbol. For example, the pressure data detected by the pressure-sensitive sensor 11a corresponding to the u-th row in the X-axis direction and the v-th row in the Y-axis direction is a (u, v) (where u is 0 or more) m or less, and v is an integer of 0 to n.

  In this case, the center-of-gravity position Cfx in the X-axis direction is calculated by the following equation.

Formula 1

  Further, the center-of-gravity position Cfy in the Y-axis direction is calculated by the following equation.

Formula 2

  Returning to FIG. 2, the center-of-gravity calculation unit 133 includes a one-foot center-of-gravity calculation unit 133a. Based on the pressure distribution data stored in the pressure distribution data storage unit 132, the one leg center of gravity calculation unit 133a calculates the position of the center of gravity of each foot of the measurement subject on the pressure distribution sensor 11 at each detection time and calculates the calculated center of gravity. The position is stored in the barycentric position storage unit 138.

  The comparison unit 134 compares the output value detected by each pressure sensor 11a with the threshold value 1. As described above, the output value detected by each pressure-sensitive sensor 11a is represented by a digital output value from 0 to 255. When there is an output from each pressure sensor 11a, the output value is equal to or greater than the threshold value 1.

  The conversion unit 135 sets the output value to 1 (first predetermined value) when the comparison unit 134 obtains a comparison result that the output value detected by each pressure-sensitive sensor 11a is equal to or greater than the threshold value 1. When the comparison result that the output value detected by each pressure-sensitive sensor 11a is smaller than the threshold value 1 is obtained in the comparison unit 134, those output values are converted to 0 (second predetermined value). Is. Therefore, in the conversion unit 135, when the output value at each pressure sensor 11a is equal to or greater than the threshold 1, the output value is converted to 1, and when there is no output (0) at each pressure sensor 11a. The output value remains 0. Thus, in this embodiment, the output value of each pressure-sensitive sensor 11a is binarized and converted to either 0 or 1.

  FIG. 5 shows an example in which the output value when the measured person places both feet on the pressure distribution sensor 11 is binarized and converted. In FIG. 5, the region where the output value is converted to 0 is shown in white, and the region where the output value is converted to 1 is shown in black. Further, a reference position for measuring the degree of wobbling of the measurement subject is indicated by A, and a center of gravity position is indicated by B. Further, a center displacement length to be described later is indicated by C. As shown in FIG. 5, the output value of each pressure-sensitive sensor 11 a is binarized and converted, so that the contact area between the measurement subject's feet and the pressure distribution sensor 11 can be accurately represented. When the center position of the contact area and the gravity center position B coincide with each other, the stability is the highest, in other words, the stagger is the smallest. That is, the center position of the contact area is set as the reference position A for measuring the degree of wobbling, and the center displacement length C, which is the distance between the reference position A and the gravity center position B, is used as an index representing the degree of wobbling.

  Returning to FIG. 2, the reference position calculation unit 136 calculates the reference position of the person to be measured at each detection time and stores the calculated reference position in the reference position storage unit 139. As described above, the center position of the contact area between the person to be measured and the pressure distribution sensor 11 is calculated and used as the reference position. Then, the reference position Cpx in the X-axis direction is calculated by the following formula.

Formula 3

  Further, the reference position Cpy in the Y-axis direction is calculated by the following equation.

Formula 4

  Here, in Expression 3 and Expression 4, an output value after being converted by the conversion unit 135 is used as the pressure data a (u, v). That is, when the output value detected by each pressure sensor 11a is equal to or greater than the threshold value 1, all of the output values are set to 1. On the other hand, when the output value is smaller than the threshold value 1, those output values are set. Are all 0, and the reference position is calculated by Equation 3 and Equation 4. The calculated reference position is sequentially stored in the reference position storage unit 139. That is, for each detection time, the position of the center of gravity of the measurement subject is stored in the center of gravity position storage unit 138 and the reference position is stored in the reference position storage unit 139.

  The center displacement length calculation unit 137 corresponds to each detection time, and the distance between the centroid position (Cfx, Cfy) calculated by the centroid calculation unit 133 and the reference position (Cpx, Cpy) calculated by the reference position calculation unit 136. The center displacement length is calculated, and the calculated center displacement length is stored in the center displacement length storage unit 140 for each detection time. That is, the center displacement length is calculated by the number corresponding to each detection time within one measurement time. As described above, the center displacement length is an indicator of the degree of wobbling of the measurement subject (see C in FIG. 5).

  The parameter calculation unit 141 includes various parameters (in this embodiment, “total center displacement length”, “unit total center displacement length”, “total X center displacement length”, “unit total X center displacement length”, "Total Y center displacement length", "unit total Y center displacement length", "one leg center of gravity locus length" and "specific step outer circumference area"), and a total center displacement length calculation unit 141a, A center displacement length calculation unit 141b, a one leg center of gravity locus length calculation unit 141c, and a specific step outer peripheral area calculation unit 141d are included.

  The total center displacement length calculation unit 141a calculates “total center displacement length”, “total X center displacement length”, and “total Y center displacement length”. The “total center displacement length” is obtained by integrating the center displacement lengths calculated so as to correspond to the respective detection times within one measurement time. The “total X center displacement length” is the length of the X direction component in the “total center displacement length”. The “total Y center displacement length” is the length of the Y direction component in the “total center displacement length”.

  The unit total center displacement length calculation unit 141b calculates “unit total center displacement length”, “unit total X center displacement length”, and “unit total Y center displacement length”. “Unit total center displacement length” is obtained by multiplying “total center displacement length” by a ratio of predetermined unit time to measurement time. The unit time may be any time. Similarly, “unit total X center displacement length” is obtained by multiplying “total X center displacement length” by a ratio of a predetermined unit time to measurement time, and “unit total Y center displacement length” is “total Y center displacement length”. The displacement length is multiplied by the ratio of a predetermined unit time to the measurement time. By comparing the “unit total center displacement length”, “unit total X center displacement length” and “unit total Y center displacement length”, even if the total center displacement length differs greatly depending on the person being measured, Can understand the typical walking state.

  The one leg center of gravity trajectory length calculation unit 141 c calculates the “one leg center of gravity locus length” based on the center of gravity position of each foot of the measurement subject stored in the center of gravity position storage unit 138. The “one leg center of gravity locus length” will be described with reference to FIG. FIG. 6 is a diagram showing the locus of the center of gravity of one foot of the measurement subject on the pressure distribution sensor 11. As shown in FIG. 6, the “one leg center of gravity trajectory length” is the length of the trajectory of the center of gravity position of each foot within the contact area with one foot of the measurement subject on the pressure distribution sensor 11 within the measurement time. That's it.

  The specific step outer peripheral area calculation unit 141d calculates the “specific step outer peripheral area” based on the barycentric position of each foot of the measurement subject stored in the barycentric position storage unit 138. The “specific step outer peripheral area” will be described with reference to FIG. FIG. 7 is a diagram showing the locus of the center of gravity position of the measurement subject on the pressure distribution sensor 11. As shown in FIG. 7, the “specific step outer peripheral area” is an area on the pressure distribution sensor 11 in which the locus of the center of gravity of the measurement target calculated by the center of gravity calculation unit 133 is drawn (enclosed by a broken line in the figure). Area S) is divided by the distance L between the left and right feet when the measurement subject steps. As the distance L between the left and right feet, a distance calculated from the trajectory of the center of gravity of the person to be measured may be used, or a distance input in advance may be used.

  Returning to FIG. 2, as described above, the center-of-gravity position storage unit 138 calculates the center-of-gravity position calculated by the center-of-gravity calculation unit 133 and the center-of-gravity position of each foot calculated by the one foot center-of-gravity calculation unit 133 a for each detection time. It is something to remember. The reference position storage unit 139 stores the reference position calculated by the reference position calculation unit 136 for each detection time. Further, the center displacement length storage unit 140 stores the center displacement length calculated by the center displacement length calculation unit 137 for each detection time.

  The display control unit 142 causes the measurement subject to display the content of the stepping action and the measurement result on the display 21. In other words, the display control unit 142 instructs the subject to perform a stepping action.

  That is, in the operation of the walking training support apparatus 1, first, the display control unit 142 displays on the display 2 that the person to be measured is stepping on the pressure distribution sensor 11. The person to be measured performs stepping according to the instruction displayed on the display 2. When the step of the person to be measured is completed, the analysis unit 131 analyzes the load state of the person to be measured and calculates each parameter. When the calculation of each parameter by the analysis unit 131 is completed, the display control unit 142 displays each calculated parameter on the display 2.

  An analysis result displayed on the display 2 by the display control unit 142 will be described with reference to FIG. FIG. 8 is a diagram showing the display contents of the analysis result of the stepping action. As shown in FIG. 8, the display control unit 142 displays the pressure distribution window 51 and the result display window 52 on the display 21.

  In the pressure distribution window 51, a pressure distribution 61 applied on the pressure distribution sensor 11 from both feet of the measurement subject is displayed based on the pressure distribution data stored in the pressure distribution data storage unit 132. Here, the pressure distribution 61 is displayed in an isobaric line shape, and is displayed according to a color scale that changes stepwise as the pressure value changes. Further, in the pressure distribution window 51, a locus 62 when the center of gravity of the measurement subject moves is drawn based on the center of gravity position data stored in the center of gravity position storage unit 138. Therefore, the operator can grasp the pressure distribution 61 and the trajectory 62 of the gravity center position of both feet of the measurement subject by looking at the pressure distribution window 51.

  In the result display window 52, “total center displacement length”, “unit total center displacement length”, “total X center displacement length”, “unit total X center displacement length”, “ Numerical values of “total Y center displacement length”, “unit total Y center displacement length”, “one leg center of gravity locus length”, and “specific step outer circumference area” are displayed. By referring to each of these parameters, it is possible to objectively grasp the load state when the measurement subject steps.

  As described above, according to the walking training support device 1 of the present embodiment, the person to be measured performs stepping that does not move on the pressure distribution sensor 11, and thus the pressure distribution sensor 11 can be reduced. As a result, downsizing and cost reduction of the walking training support device 1 are achieved by downsizing the pressure distribution sensor 11 while performing advanced analysis of the load state when the measurement subject steps on the pressure distribution sensor 11. Can be achieved.

  Further, the total center displacement length calculation unit 141a is based on the pressure distribution data at each detection time, and the reference position that is the center position of the contact area between the measured person and the pressure distribution sensor 11 based on the measured person's center of gravity. Based on the calculated center of gravity position and the reference position, the center displacement length at each detection time and the total center displacement length obtained by integrating the center displacement length are calculated. As described above, since the reference coordinates are calculated for each detection time within the measurement time, when one foot of the person to be measured is separated from the pressure distribution sensor 11 at the time of stepping, the position of the center of gravity and the contact position of the sole are determined. Even when it changes, it is possible to calculate the center displacement length having a high correlation with the degree of wobbling. Therefore, the “total center displacement length”, “unit total center displacement length”, “total X center displacement length”, “unit total X center displacement length” calculated by the parameter calculation unit 141 based on the center displacement length, “ From the “total Y center displacement length” and the “unit total Y center displacement length”, it is possible to accurately measure the degree of fluctuation of the measurement subject.

  Furthermore, the unit total center displacement length calculation unit 141b calculates “unit total center displacement length”, “unit total X center displacement length”, and “unit total Y center displacement length”, thereby increasing the measurement time by the measurement subject. Even if they are different, the relative walking state can be grasped.

  In addition, the one foot center of gravity locus length calculation unit 141c can calculate the “one foot center of gravity locus length” to measure the stability of each foot when stepping.

  In addition, the specific step outer peripheral area calculation unit 141d calculates the “specific step outer peripheral area”, whereby the center-of-gravity fluctuation of the measurement subject at the time of stepping can be measured.

Second Embodiment
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 9 is a block diagram illustrating a schematic configuration of the walking training support apparatus according to the second embodiment. In addition, what has the substantially same function as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits the description.

  As shown in FIG. 2, the walking training support apparatus 201 includes a sheet-like pressure distribution sensor 11, a pressure detection unit 12 connected to the pressure distribution sensor 11, a personal computer 220, a pressure detection unit 12, and a personal computer 220. And a connection unit 40 (see FIG. 1). The personal computer 220 includes a display 21, a keyboard 25, a mouse 26, and a control unit 230.

  The control unit 230 includes a pressure distribution data storage unit 132, an analysis unit 231, a gravity center position storage unit 138, a reference position storage unit 139, a center displacement length storage unit 140, and a display control unit 242. . The analysis unit 231 analyzes the load state when the measurement subject jumps on the pressure distribution sensor 11 based on the pressure distribution data stored in the pressure distribution data storage unit 132.

  The analysis unit 231 includes a gravity center calculation unit 133, a comparison unit 134, a conversion unit 135, a reference position calculation unit 136, a center displacement length calculation unit 137, and a parameter calculation unit 241.

  The parameter calculation unit 241 includes various parameters (in this embodiment, “total center displacement length”, “unit total center displacement length”, “total X center displacement length”, “unit total X center displacement length”, “Total Y center displacement length”, “unit total Y center displacement length”, “jumping time”, and “jumping center of gravity locus length”), a total center displacement length calculation unit 141a, and a unit total center displacement length A calculation unit 141b, a jump time calculation unit 241c, and a jump center of gravity locus length calculation unit 241d are included. The functions of the total center displacement length calculation unit 141a and the unit total center displacement length calculation unit 141b are substantially the same as those in the first embodiment, and thus description thereof is omitted.

  The jump time calculation unit 241 c calculates “jump time” based on the pressure distribution data stored in the pressure distribution data storage unit 132. The “jump time” is the time from when the measurement subject's load disappears until the measurement subject's load appears again on the pressure distribution sensor 11. The “jumping time” is calculated every time the measured person jumps within the measurement time.

  The jumping centroid locus length calculation unit 241d calculates the “jumping centroid locus length” based on the centroid position of the measurement subject stored in the centroid position storage unit 138. The “jumping center of gravity locus length” is the length of the locus of the center of gravity position of the measurement subject on the pressure distribution sensor 11 within the measurement time.

  The display control unit 242 causes the measurement subject to display the jump operation content and the measurement result on the display 21. In other words, the display control unit 242 instructs the measurement subject to jump.

  In the operation of the walking training support apparatus 201, first, the display control unit 242 displays on the display 2 that the person to be measured jumps on the pressure distribution sensor 11. The measured person jumps according to the instruction displayed on the display 2. When the measurement subject's jump is completed, the analysis unit 231 analyzes the measurement subject's load state and calculates each parameter. When the calculation of each parameter by the analysis unit 231 is completed, the display control unit 242 displays the calculated parameter on the display 2.

  An analysis result displayed on the display 2 by the display control unit 242 will be described with reference to FIG. FIG. 10 is a diagram showing the display contents of the analysis result of the jumping motion. As shown in FIG. 10, the display control unit 142 displays a pressure distribution window 251 and a result display window 252 on the display 21.

  In the pressure distribution window 251, a pressure distribution 261 to be applied on the pressure distribution sensor 11 from both feet of the measurement subject is displayed based on the pressure distribution data stored in the pressure distribution data storage unit 132. Here, the pressure distribution 261 is displayed in an isobaric line, and is displayed according to a color scale that changes stepwise as the pressure value changes. Further, in the pressure distribution window 251, a trajectory 262 when the center of gravity of the measurement subject moves is drawn based on the center of gravity position data stored in the center of gravity position storage unit 138. Therefore, the operator can grasp the pressure distribution 261 and the trajectory 262 of the gravity center position of both feet of the measurement subject by looking at the pressure distribution window 251.

  In the result display window 252, “total center displacement length”, “unit total center displacement length”, “total X center displacement length”, “unit total X center displacement length”, “ Numerical values of “total Y center displacement length”, “unit total Y center displacement length”, “jumping time”, and “jumping center of gravity locus length” are displayed. FIG. 10 shows the result when the person to be measured jumped four times within the measurement time, and “jumping time” for four times is displayed as “jumping time 1” to “jumping time 4”. Yes. By referring to these parameters, it is possible to objectively grasp the load state when the measurement subject jumps.

  As described above, according to the walking training support apparatus 201 of the present embodiment, the person to be measured only needs to jump on the pressure distribution sensor 11, and thus the pressure distribution sensor 11 can be made small. As a result, the walking training support apparatus 1 can be reduced in size and cost by reducing the size of the pressure distribution sensor 11 while performing advanced analysis of the load state when the measured person jumps with the pressure distribution sensor 11. Can be achieved.

  Further, the total center displacement length calculation unit 141a is based on the pressure distribution data at each detection time, and the reference position that is the center position of the contact area between the measured person and the pressure distribution sensor 11 based on the measured person's center of gravity. Based on the calculated center of gravity position and the reference position, the center displacement length at each detection time and the total center displacement length obtained by integrating the center displacement length are calculated. In this way, since the reference coordinates are calculated for each detection time within the measurement time, it is possible to calculate a center displacement length that has a high correlation with the degree of stagger during jumping. Therefore, the “total center displacement length”, “unit total center displacement length”, “total X center displacement length”, “unit total X center displacement length” calculated by the parameter calculation unit 141 based on the center displacement length, “ From the “total Y center displacement length” and the “unit total Y center displacement length”, it is possible to accurately measure the degree of fluctuation of the measurement subject.

  Further, the unit total center displacement length calculation unit 141b calculates “unit total center displacement length”, “unit total X center displacement length”, and “unit total Y center displacement length”, so that the measurement subject can measure time and jump. Even if the number of times is greatly different, the relative walking state can be grasped.

  In addition, the jump time calculation unit 241c can calculate the “jump time” to measure the leg strength of the person to be measured and the stability thereof during the jump.

  In addition, the jumping center-of-gravity locus length calculation unit 141d calculates the “jumping center-of-gravity locus length”, whereby the accurate center-of-gravity sway of the measurement subject during the jump can be measured.

<Third Embodiment>
Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 11 is a block diagram illustrating a schematic configuration of the walking training support apparatus according to the third embodiment. In addition, what has the substantially same function as 1st and 2nd embodiment attaches | subjects the same code | symbol, and abbreviate | omits the description.

  As shown in FIG. 11, the walking training support device 301 includes a sheet-like pressure distribution sensor 11, a pressure detection unit 12 connected to the pressure distribution sensor 11, a personal computer (personal computer) 320 having a control unit 330, a pressure A connection unit 40 for connecting the detection unit 12 and the personal computer 320 is provided.

  The control unit 330 includes a pressure distribution data storage unit 132, a centroid position storage unit 138, an analysis unit 331, and a display control unit 342. The analysis unit 331 includes a center of gravity calculation unit 333 and a parameter calculation unit 341.

  Based on the pressure distribution data stored in the pressure distribution data storage unit 132, the centroid calculation unit 333 calculates the centroid position of the measurement subject on the pressure distribution sensor 11 at each detection time, and calculates the calculated centroid position as the centroid position. The information is stored in the storage unit 138. The center-of-gravity calculation unit 333 includes each step center-of-gravity position calculation unit 333a.

  Each step center-of-gravity position calculation unit 333 a calculates “each step center-of-gravity position” based on the center-of-gravity position of each foot of the measurement subject stored in the center-of-gravity position storage unit 138. “Each centroid position” is the centroid position of each step on the pressure distribution sensor 11 when the measurement subject steps. Each step center-of-gravity position calculation unit 333a includes, in each step, the position of the center of the person to be measured that is located on the leftmost side when only the left foot of the person to be measured is disposed on the pressure distribution sensor 11, and The position of the center of gravity of the person to be measured located on the rightmost side when only the right foot is arranged on the pressure distribution sensor 11 is calculated as “the position of the center of gravity of each step”.

  The parameter calculation unit 341 calculates various parameters (in this embodiment, “variation degree” and “center point movement trajectory length”) as measurement results, and the variation degree calculation unit 341a and the center point movement trajectory length. And a calculation unit 341b.

  The variation degree calculation unit 341a calculates the “variation degree” based on “each step gravity center position” calculated by each step gravity center position calculation unit 333a. The variation degree calculation unit 341a will be described with reference to FIG. 12 shows the “each step gravity center position” and the “each step gravity center position” of the m-th step (m is a positive natural number) of the measurement subject when the measurement subject steps. Show. Note that both the m-2 step and the m step are steps with the left foot, and the footprint shown in FIG. 12 indicates the position of the foot of the m step. In FIG. 12, the x direction is the left-right direction of the person to be measured, and the y direction is the front-rear direction of the person to be measured. As shown in FIG. 12, in each of the (m−2) th step and the mth step, “each step gravity center position” is shifted by the distance Lx in the x direction and the distance Ly in the y direction. The degree-of-variation calculation unit 341a each time the measured person steps on the distance Lx and the distance Ly, which are deviation amounts related to the “each step center of gravity position” of the m-2 step and the “each step center of gravity position” of the m step. By integrating, a total of four integrated values of the integrated value of the distance Lx and the integrated value of the distance Ly regarding the left foot and the integrated value of the distance Lx and the integrated value of the distance Ly regarding the right foot are calculated. Then, the final “variation degree” is calculated by summing up these integrated values.

  The method for calculating the “variation degree” is not limited to this. For example, as shown in FIG. 13, the distance from the “each step gravity center position” of the m-2 step of the measurement subject to the “each step gravity center position” of the m step on the pressure distribution sensor 11 by the variation degree calculation unit. The “variation degree” may be calculated by integrating L.

  Returning to FIG. 11, the center point movement trajectory length calculation unit 341b calculates the “center point movement trajectory length” based on “each step center of gravity position” calculated by each step center of gravity position calculation unit 333a. The center point movement trajectory length calculation unit 341b will be described with reference to FIG. FIG. 14 is a diagram illustrating the n-1th step (n is a positive natural number) and the “each step gravity center position” of the nth step when the measured person steps on. As shown in FIG. 14, the “center point movement trajectory length” is the center point (c0, c1, c2, ...). The center point movement trajectory length calculation unit 341b determines the center point (c0, c1, c2) based on “each step center of gravity position” calculated by each step center of gravity position calculation unit 333a each time the measured person steps on the left and right feet step by step. ,... Are calculated in order and the distance from the center point (c0, c1, c2,...) Calculated this time to the center point (c0, c1, c2,. "Length" is calculated.

  Returning to FIG. 11, the display control unit 342 causes the measurement subject to display the content of the stepping action and the measurement result on the display 21. In other words, the display control unit 342 instructs the measurement subject to perform a stepping action.

  In the operation of the walking training support apparatus 301, first, the display control unit 342 displays on the display 2 that the person to be measured is stepping on the pressure distribution sensor 11. The person to be measured performs stepping according to the instruction displayed on the display 2. When the measurement subject's stepping is completed, the analysis unit 331 analyzes the measurement subject's load state and calculates each parameter. When the calculation of each parameter by the analysis unit 331 is completed, the display unit 342 displays the calculated parameter on the display 21.

  An analysis result displayed on the display 2 by the display unit 342 will be described with reference to FIG. FIG. 15 is a diagram illustrating display contents of the analysis result of the stepping motion. As shown in FIG. 12, the display control unit 342 displays the pressure distribution window 51 and the result display window 352 on the display 21.

  In the result display window 352, the numerical values of “degree of variation” and “center point movement trajectory length” calculated by the parameter calculation unit 341 are displayed.

  As described above, according to the walking training support apparatus 301 of the present embodiment, since the person to be measured performs stepping that does not move on the pressure distribution sensor 11, the pressure distribution sensor 11 can be made small. As a result, downsizing and cost reduction of the walking training support device 301 are achieved by downsizing the pressure distribution sensor 11 while performing advanced analysis of the load state when the measurement subject steps on the pressure distribution sensor 11. Can be achieved.

  In addition, each step center of gravity position calculation unit 333a is configured so that only the measurement subject's left foot when only the measurement subject's left foot is arranged on the pressure distribution sensor, and only the measurement subject's right foot. Since the center of gravity position of the person to be measured that is positioned on the rightmost when the pressure distribution sensor 11 is arranged on the pressure distribution sensor 11 is calculated as “the center of gravity of each step”, the degree of wandering of the person to be measured at the center of gravity of each step Can be reliably reflected.

  Further, the position variation calculation unit 341a can measure the degree of fluctuation of the measurement subject by measuring the “variation degree” of each step that is highly related to the degree of fluctuation.

  In addition, the center point movement trajectory length calculation unit 341b can calculate a “center point movement trajectory length” to measure a change in the position of the person to be measured on the pressure distribution sensor 11 when stepping on. it can. Thereby, the variation degree of a to-be-measured person can be grasped | ascertained correctly.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various design changes can be made as long as they are described in the claims. For example, in the first and second embodiments, in the conversion unit 135, when the output value detected by each pressure-sensitive sensor 11a is equal to or greater than the threshold value 1, it is converted to 1, and when the output value is smaller than the threshold value 1, , 0, but the threshold is not limited to 1. Therefore, when the output value is a digital output value, the threshold value may be an integer of 2 or more. When the output value is an analog output value, the threshold value may be a number greater than 0 and less than 1, or a positive number greater than 1. Further, the first predetermined value converted when the output value is equal to or greater than the threshold value is not limited to 1, and may be other positive numbers. Similarly, the second predetermined value converted when the output value is smaller than the threshold value is not limited to 0, and may be other numbers.

  In the first embodiment, the parameter calculation unit 141 performs “total center displacement length”, “unit total center displacement length”, “total X center displacement length”, “unit total X center displacement length”, “total Y center displacement”. `` Length '', `` Unit total Y center displacement length '', `` One leg center of gravity locus length '' and `` Specific step outer circumference area '' are calculated, but may be configured to calculate at least one of these, It may be configured to calculate other parameters.

  Furthermore, in the second embodiment, the parameter calculation unit 241 performs “total center displacement length”, “unit total center displacement length”, “total X center displacement length”, “unit total X center displacement length”, “total Y center displacement”. “Length”, “Unit Total Y Center Displacement Length”, “Jumping Time”, and “Jumping Center of Gravity Length” may be configured to calculate at least one of these, or other parameters May be configured to calculate.

  In addition, in the second embodiment, the unit total center displacement length calculation unit 141b calculates the “total center displacement length” multiplied by a ratio of a predetermined unit time to the measurement time. The displacement length calculation unit 141b may calculate a value obtained by dividing the “total center displacement length” by the number of jumps of the person being measured.

  In the third embodiment, the parameter calculation unit 341 is configured to calculate the “degree of variation” and the “center point movement trajectory length” in the present embodiment, but is configured to calculate at least one of these. Alternatively, it may be configured to calculate other parameters.

  In each of the above-described embodiments, the display control units 142, 242, and 342 function as instruction means for instructing the measurement subject to the operation content at the time of measurement by displaying the operation content on the display 21. However, the instruction means is not limited to such a configuration. For example, the configuration may be such that the operation content is instructed by sound, or the operator may directly instruct the operation content to the measurement subject.

It is an external view which shows schematic structure of the walking training assistance apparatus which concerns on 1st Embodiment of this invention. It is a block diagram which shows schematic structure of the walking training assistance apparatus of FIG. It is the figure which showed the operation content of the stepping in the walking training assistance apparatus shown in FIG. It is a figure which shows the pressure distribution data detected by the pressure sensor shown in FIG. It is a figure which shows the state by which the output value when a test subject has arrange | positioned both legs on the pressure distribution sensor shown in FIG. It is the figure which showed the locus | trajectory of the gravity center position of one leg | foot of a to-be-measured person on the pressure distribution sensor shown in FIG. It is the figure which showed the locus | trajectory of the gravity center position of a to-be-measured person on the pressure distribution sensor shown in FIG. It is a figure which shows the display content of the measurement result by the display control part shown in FIG. It is a block diagram which shows schematic structure of the walking training assistance apparatus which concerns on 2nd Embodiment of this invention. It is a figure which shows the display content of the measurement result by the display control part shown in FIG. It is a block diagram which shows schematic structure of the walking training assistance apparatus which concerns on 3rd Embodiment of this invention. It is a figure for demonstrating the "variation degree" which the variation degree calculation part shown in FIG. 11 calculates. It is a figure for demonstrating the modification of a dispersion | variation degree calculation part. It is a figure for demonstrating "the center point movement locus | trajectory length" which the center point movement locus | trajectory length calculation part shown in FIG. 11 calculates. It is a figure which shows the display content of a measurement result by the display control part shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Walking training assistance apparatus 11 Pressure distribution sensor 11a Pressure sensor (pressure detection area)
20 Personal computer 21 Display 30 Control unit 131 Analysis unit (analysis means)
132 Pressure distribution data storage unit 133 Center of gravity calculation unit (center of gravity position calculation means)
133a One foot center of gravity calculation unit 134 comparison unit (comparison means)
135 Conversion unit (first conversion unit, second conversion unit)
136 Reference position calculation unit (reference position calculation means)
137 Center displacement length calculation unit (center displacement length calculation means)
138 Center of gravity position storage section 139 Reference position storage section 140 Center displacement length storage section (center displacement length calculation means)
141 Parameter calculation unit 141a Total center displacement length calculation unit 141b Unit total center displacement length calculation unit 141c One foot center of gravity locus length calculation unit (one foot center of gravity locus length calculation means)
141d Specific step outer peripheral area calculation unit (specific step outer peripheral area calculation means)
142 Display Control Unit (Instruction Unit)
241c Jump time calculation unit (jump time calculation means)
241d Jumping center of gravity locus length calculation unit (jumping center of gravity locus length calculation means)
333a Each step gravity center position calculation unit (each step gravity center position calculation means)
341a Variation degree calculation unit (variation degree calculation means)
341b Center point locus length calculation unit (center point locus length calculation means)

Claims (12)

A pressure distribution sensor having a plurality of pressure detection regions for detecting the pressure applied from the person to be measured;
Instruction means for instructing the person to measure to step on the pressure distribution sensor;
Output corresponding to the pressure detected in each of the plurality of pressure detection areas included in the pressure distribution data from the pressure distribution sensor when the person to be measured steps on the pressure distribution sensor based on the instruction means An gait training support apparatus comprising: an analysis unit that analyzes a load state of the measurement subject on the pressure distribution sensor based on the value. The analysis means is
One foot center of gravity position calculating means for calculating the center of gravity position of one foot of the measurement subject on the pressure distribution sensor;
One foot for calculating a one foot center of gravity locus length which is a locus length of the center of gravity position of the one foot calculated by the one foot center of gravity position calculating means in a contact area with one foot of the measurement subject on the pressure distribution sensor. The walking training support apparatus according to claim 1, further comprising a center-of-gravity locus length calculation unit. The analysis means is
Centroid position calculating means for calculating the position of the centroid of the person to be measured on the pressure distribution sensor;
On the pressure distribution sensor, a specific step outer peripheral area obtained by dividing the area of the region where the locus of the center of gravity calculated by the center of gravity calculating unit is drawn by the distance between the left and right feet when the measurement subject steps. The walking training support apparatus according to claim 1, further comprising a specific step outer peripheral area calculating means for calculating. A pressure distribution sensor having a plurality of pressure detection regions for detecting the pressure applied from the person to be measured;
Instruction means for instructing the measurement subject to jump on the pressure distribution sensor;
Output corresponding to the pressure detected in each of the plurality of pressure detection regions included in the pressure distribution data from the pressure distribution sensor when the person to be measured jumps on the pressure distribution sensor based on the instruction means An gait training support apparatus comprising: an analysis unit that analyzes a load state of the measurement subject on the pressure distribution sensor based on the value.   The analysis means includes jump time calculation means for calculating a jump time, which is a time from when the load of the person to be measured disappears on the pressure distribution sensor until the load of the person to be measured appears again. The walking training support device according to claim 4, wherein: The analysis means is
Centroid position calculating means for calculating the position of the centroid of the person to be measured on the pressure distribution sensor;
The walking training support apparatus according to claim 4, further comprising: a jumping center of gravity locus length calculating unit that calculates a jumping center of gravity locus length that is a locus length of the center of gravity position calculated by the center of gravity position calculating unit. The analysis means is
Centroid position calculating means for calculating the position of the centroid of the person to be measured on the pressure distribution sensor;
Comparison means for comparing an output value corresponding to a pressure detected in each of the plurality of pressure detection regions included in the pressure distribution data from the pressure distribution sensor with a threshold value;
When the comparison result that the output value corresponding to the pressure detected in each of the plurality of pressure detection regions included in the pressure distribution data from the pressure distribution sensor is equal to or greater than a threshold value is obtained by the comparison unit. First output means for converting the output value of the first output value to a first predetermined value;
When the comparison result that the output value corresponding to the pressure detected in each of the plurality of pressure detection regions included in the pressure distribution data from the pressure distribution sensor is smaller than the threshold is obtained by the comparison unit, Second conversion means for converting an output value into a second predetermined value different from the first predetermined value;
The pressure corresponding to the output value converted from the measured person to the first predetermined value by the first conversion means and the output value converted to the second predetermined value by the second conversion means is the plurality of pressures. A reference position calculating means for calculating a reference position serving as a reference for the position of the center of gravity of the measured person on the pressure distribution sensor based on the position of the center of gravity of the measured person when added to the detection region;
A center displacement length calculating means for calculating a center displacement length that is a relative distance between the center of gravity position calculated by the center of gravity position calculating means and the reference position calculated by the reference position calculating means;
5. A total center displacement length calculating means for calculating a total center displacement length obtained by integrating the center displacement lengths calculated by the center displacement length separation calculating means within a measurement time. The walking training support device according to claim 1. Each step gravity center position calculating means for calculating the gravity center position of each step of the measurement subject on the pressure distribution sensor;
And a variation degree calculating means for calculating a variation degree of the center of gravity position of each foot of the measurement subject based on the center of gravity position of each step calculated by each of the step gravity center positions calculating means. Item 2. The walking training support device according to Item 1.   The variation degree calculating unit accumulates at least one of a distance in the front-rear direction and a distance in the left-right direction from the center-of-gravity position of the measurement subject's m-2 step (m is a positive integer) to the center of gravity of the m-th step. The gait training support device according to claim 8, wherein the degree of variation is calculated by performing the step.   The degree-of-variation calculating means calculates the degree of variation by integrating the distance from the center-of-gravity position of the m-2th step (m is a positive integer) of the measurement subject to the center-of-gravity position of the m-th step. The walking training support apparatus according to claim 8. Each step centroid position calculating means for calculating the centroid position of each step of the measurement subject on the pressure distribution sensor, and
Center point movement locus length calculation for calculating the movement locus length of the center point between the gravity center position of the (n-1) th step (n is a positive integer) and the gravity center position of the nth step calculated by each step gravity center position calculation means. The walking training support apparatus according to claim 1, further comprising means.   Each step center of gravity position calculating means is configured such that only the left foot of the measured person is positioned on the pressure distribution sensor, the center position of the measured person located on the leftmost side, and only the right foot of the measured person is the 12. The center of gravity position of the person to be measured located on the rightmost side when arranged on the pressure distribution sensor is calculated as the center of gravity position of each step of the person to be measured. The walking training support device according to claim 1.

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