JP2005253819A - Stabilometer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stabilometer, when a postoperative patient or a patient who needs rehabilitation exercise carries out rehabilitation, with which the patient's state of rehabilitation practice can be grasped quantitatively and feedback can be provided to the patient when he/she intentionally shifts his trunk center of gravity after he/she stands up. <P>SOLUTION: The stabilometer comprises a center-of-gravity measuring device 2 detecting a location of the trunk center of gravity, an arithmetic device 10 calculating output from the center-of-gravity measuring device 2, a display apparatus 12 displaying calculation results from the arithmetic device 10, and a data storing device 13 storing calculation results. The arithmetic device 10 shows a target location of the center of gravity and a location of the trunk center of gravity on the display device 12, measures the distance between the target location of the center of gravity and the location of the trunk center of gravity with time, adds up the time of each distance, and displays a level of proficiency based on the total time. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a center-of-gravity sway measuring device suitable for rehabilitation of elderly people, persons with disabilities and the like, and in particular, when consciously moving the trunk center of gravity after standing up, practice status of rehabilitation of a trainee The present invention relates to a center-of-gravity sway measuring device that can quantitatively grasp the above.

Trunk movement exercises are intended for daily activities and rehabilitation for elderly people, people with disabilities, people with stroke and diabetes, patients after knee surgery, etc. Is very important.
In this rehabilitation process, training of balance of the trunk and training of the center of gravity of the trunk are performed, and after becoming autonomous, walking practice is performed with a walking practice device, and then a process of shifting to walking with a cane is performed.

As one of these trunk movement exercisers, a pair of left and right floor reaction force meters are arranged on the floor, and each center reaction force meter measures the force applied from the left and right feet, respectively. is there.
This center-of-gravity sway measurement device stands up on a pair of floor reaction force meters, and stands up on a patient, and the force applied to the floor from the left and right feet is measured by each floor reaction force meter to train the movement of the center of gravity. Is supposed to do.

  By the way, the conventional center-of-gravity fluctuation measuring apparatus measures and analyzes the result of the center-of-gravity movement. Therefore, it is possible to determine the progress of rehabilitation by evaluating whether the range of movement of the center of gravity is large or small, but there is a restriction that it cannot be determined whether or not it can move actively.

  In view of the problems of the above-described conventional center-of-gravity fluctuation measurement device, when a patient having surgery or a patient having rehabilitation performs rehabilitation, when consciously moving the trunk center of gravity after standing up, It is an object of the present invention to provide a center-of-gravity sway measurement device that can quantitatively grasp the rehabilitation practice situation of a trainee and feed back to the trainee.

  In order to achieve the above object, the center-of-gravity fluctuation measuring device of the present invention displays a center-of-gravity measuring device that detects the position of the center of gravity of the trunk, an arithmetic device that calculates the output of the center-of-gravity measuring device, and a calculation result of the arithmetic device. And a data storage device for storing the calculation result, wherein the calculation device displays the target position of the center of gravity and the center of gravity position of the trunk on the display device, and the target position and the center of gravity position of the trunk. The distance is measured over time, the time is summed for each distance, and the proficiency level is displayed based on the sum of the time.

  In this case, the proficiency level can be displayed as a frequency graph.

  Further, the proficiency level can be displayed as the most frequent distance.

  Further, the proficiency level can be displayed as a standard deviation value.

  According to the center-of-gravity fluctuation measuring device of the present invention, a center-of-gravity measuring device that detects the position of the center of gravity of the trunk, an arithmetic device that calculates the output of the center of gravity measuring device, a display device that displays the calculation result of the arithmetic device, A data storage device for storing the calculation result, and the calculation device displays the target position of the center of gravity and the center of gravity position of the trunk on the display device, and calculates the distance between the target position and the center of gravity position of the trunk over time. The total time is measured for each distance, and the proficiency level is displayed based on the total time. By confirming the evaluation and the degree of recovery, and feeding back the result to the trunk movement posture, a higher practice effect can be obtained.

  In this case, by displaying the proficiency level as a frequency graph, it is possible to confirm the relative evaluation and recovery level of the trainee, and feed back the results to the trunk movement posture. An effect can be obtained.

  In addition, by displaying the proficiency level as the most frequent distance, it is possible to confirm the relative evaluation and recovery level of the trainee, and to feed back the results to the trunk movement posture. An effect can be obtained.

  In addition, by displaying the proficiency level as a standard deviation value, it is possible to confirm the relative evaluation and recovery level of the trainee, and to feed back the results to the trunk movement posture. An effect can be obtained.

  Hereinafter, embodiments of the center-of-gravity fluctuation measuring device of the present invention will be described with reference to the drawings.

1 to 4 show an embodiment of the center-of-gravity fluctuation measuring device of the present invention.
In the figure, 1 is a trunk movement practitioner, 2 is a center of gravity shaking measuring device, and the center of gravity shaking measuring device 2 includes a pair of left and right support bars 3a and 3b that are gripped by trunk movement, and the support bars 3a and 3b. And two support columns 4 that are horizontally supported.

  The floor reaction force detectors 6a and 6b are composed of a pair of left and right floor reaction force meters disposed on the floor as a center of gravity measurement device. The floor reaction force meter uses the force applied to the upper surface as an electrical signal. A load detection device or the like to be converted is provided, and a signal of the load detection device is guided to the arithmetic device 10.

  The foot position detection device (not shown) can include, for example, a plurality of strain gauges respectively disposed on the floor reaction force detection devices 6a and 6b, and the force applied to the strain gauge at a predetermined position can be electrically The positions of the left and right feet 9a and 9b can be detected by converting them into signals and performing arithmetic processing in the arithmetic device 10.

  The computing device 10 computes each output signal of the floor reaction force detection devices 6a and 6b, and in this embodiment, a synchronous computation processing device 11 that performs computation processing to synchronize the computation results of each sensing device, For example, a personal computer or the like provided with the display device 12 and the data storage device 13 is configured.

The synchronization processing device 11 can take in analog signals such as leg loads by the floor reaction force detection devices 6a and 6b. These captured signals are sent to the arithmetic / recording device via the A / D or D / A conversion board, and converted into force signals and the like.
In addition, the synchronous calculation processing device 11 can perform force statistical processing, vector calculation of the direction and magnitude of the force, and the like by calculating each signal or data between signals.

The display device 12 is sent with the calculation result by the synchronous calculation processing device 11, and necessary information is selectively displayed by the operation of the operator.
The display device 12 can display not only the temporal fluctuation value of the calculation result but also a comparison display with past practice data read from a storage medium such as a flexible disk.
Further, the sound output device 14 including a speaker or the like built in the display device 12 can generate a warning sound or a sound as necessary.

The data storage device 13 can record practice data obtained using a personal computer or the like on a storage medium such as a flexible disk.
Further, the data storage device 13 can also compare and reproduce the past practice results, and the results are sent to the display device 12 for display.
The trunk movement practitioner 1 confirms his / her trunk movement balance, the current recovery degree, and the like while looking at the display device 12, and feeds back the results to his / her trunk movement posture, thereby realizing higher practice. An effect can be obtained.

  From the sound output device 14, it is possible to output a voice of the magnitude of the force applied to the floor reaction force detection devices 6 a and 6 b, the balance condition, etc., so that the practitioner can learn his own faults and practice status. You can practice while listening to your ears.

And this center-of-gravity fluctuation measuring device calculates the center-of-gravity position of the trunk from the output results of the floor reaction force detection devices 6a and 6b, the foot position detection device, etc. 12 displays a center-of-gravity target graphic 15 that is the target position of the center of gravity, displays the center-of-gravity target graphic 15 in a predetermined pattern, and displays a mark 16 that is the center-of-gravity position of the trunk and its locus 17. It is trying to display.
Further, the arithmetic unit 10 can measure the distance between the center-of-gravity target graphic 15 and the mark 16 with time, sum the times for each distance, and display the proficiency level based on the sum of the times.
In this case, the center-of-gravity target graphic 15 is moved to the maximum within the range in which the center-of-gravity movement can be measured, and the practitioner moves the center of gravity so that the mark 16 traces the center-of-gravity target graphic 15 on this screen.

Next, a training method using the center-of-gravity fluctuation measuring device of the present embodiment will be described.
When standing on the center of gravity measuring apparatus, the position of the center of gravity of the trunk is displayed as a mark 16 on the screen of the display device.
For example, as shown in FIG. 3, the center of gravity target graphic 15 indicated by a circle is displayed on the screen, so that the body is shaken so that the center of gravity of the trunk comes at the position of the center of gravity target graphic 15 to be moved. .

For example, the determination is based on the sum of the time t (s) at which the distance between the center-of-gravity target graphic 15 and the mark 16 serving as the center of gravity at a certain time is d (mm). Can be evaluated.
Incidentally, if the horizontal axis is the distance d (mm) between the target graphic 15 and the mark 16 (center of gravity position) and the vertical axis is the sum of the distances, the histogram shown in FIG. 4 is obtained. A difference between the minimum distance L1 and the maximum distance L2 in an appropriate width, for example, 80% of the entire area from the median value L3 is defined as a proficiency level.

Further, the determination can be evaluated by the most frequent distance, which is the most frequent distance.
Incidentally, if the horizontal axis is the distance d (mm) between the target figure 15 and the center of gravity (mark 16) and the vertical axis is the sum of the distances, the histogram shown in FIG. 4 is obtained. The most frequent distance TM (mm) that maximizes the sum of the values is taken as the proficiency level.

Further, the determination can be evaluated by a standard deviation value.
Incidentally, the horizontal axis shown in FIG. 4 is the distance d (mm) between the target graphic 15 and the center of gravity (mark 16), and the vertical axis is the sum of the distances, and the standard deviation SD at this time is Can be evaluated.
For example, a large standard deviation indicates that the distance between the target graphic 15 and the center of gravity position (mark 16) is not stable, indicating that the body center of gravity could not be moved as intended.

Thus, the center-of-gravity fluctuation measuring device of the present embodiment displays the center-of-gravity measuring device 6 that detects the position of the center of gravity of the trunk, the arithmetic unit 10 that calculates the output of the center-of-gravity measuring unit 6, and the calculation result of the arithmetic unit 10 And a data storage device 13 for storing the calculation result. The calculation device 10 displays the target position of the center of gravity and the center of gravity position of the trunk on the display device 12, and the target position and the body. Measure the distance to the center of gravity of the trunk over time, sum the time for each distance, and display the proficiency level based on the sum of the time, so practice to bring the trunk center of gravity position closer to the target position to move While performing, it is possible to obtain a higher practice effect by confirming the relative evaluation and recovery degree of the trainee and feeding back the result to the trunk movement posture.
In this case, the proficiency level is displayed as a frequency graph, the most frequent distance, or the standard deviation value, specifically confirming the relative evaluation and recovery level of the trainee, etc. By providing feedback, it is possible to obtain a higher practice effect.

  As mentioned above, although the center-of-gravity fluctuation measuring device of the present invention has been described based on a plurality of embodiments, the present invention is not limited to the configurations described in the above embodiments, and the configurations described in the respective embodiments are appropriately combined. The configuration can be changed as appropriate without departing from the spirit of the invention.

  Since the center-of-gravity sway measuring device of the present invention has a characteristic that it can confirm its own trunk movement balance, current recovery degree, etc. while looking at the display device, the result is converted into its own trunk movement posture. It can be suitably used for rehabilitation with higher practice effects for feedback.

It is a perspective view which shows one Example of the gravity center fluctuation measuring apparatus of this invention. It is a figure which shows the structure of each sensor and arithmetic unit of the Example. It is a figure which shows the center-of-gravity target figure and mark of the center-of-gravity position of a trunk of the Example. It is the figure which displayed frequency distribution of the distance of a gravity center target figure and the mark of a gravity center position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Trunk movement practitioner 2 Center of gravity fluctuation measuring device 3a Support rod 3b Support rod 4 Post 5a Upper limb force detection device 5b Upper limb force detection device 6a Floor reaction force detection device (foot position detection device)
6b Ground reaction force detection device (foot position detection device)
7 floor 8a hand 8b hand 9a foot 9b foot 10 arithmetic unit 11 synchronous arithmetic processing unit 12 display unit 13 data storage unit 14 sound output unit 15 center of gravity target figure 16 mark (trunk center of gravity position)
17 Trajectory

Claims (4)

  A center-of-gravity measuring device that detects the position of the center of gravity of the trunk, a computing device that computes the output of the center-of-gravity measuring device, a display device that displays the computation results of the computing device, and a data storage device that stores the computation results The arithmetic unit displays the target position of the center of gravity and the center of gravity of the trunk on the display device, measures the distance between the target position and the center of gravity of the trunk over time, and sums the time for each distance. And a center-of-gravity fluctuation measuring device that displays a proficiency level based on the sum of the times.   The center-of-gravity fluctuation measuring device according to claim 1, wherein the proficiency level is displayed as a frequency graph.   The center-of-gravity fluctuation measuring device according to claim 1, wherein the proficiency level is displayed as the most frequent distance.   The center-of-gravity fluctuation measuring device according to claim 1, wherein the proficiency level is displayed as a standard deviation value.

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