JP2577569B2 - Balance function measurement and training device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention measures an abnormality in a sense of balance in accordance with the movement of the center of gravity of a person to be measured and, at the same time, a balance function measurement in which correction training can be performed at the same time. And training equipment.

(Prior Art) Various types of balance measuring devices have been known. For example, the invention described in Japanese Patent Publication No. 50-16918
The movement of the center of gravity of the person to be measured is detected as an electric signal of X and Y coordinates, and the detected signal is displayed on a display.

If the movement of the center of gravity of the person is detected in this way, the balance function of the person to be measured can be measured, and the dysfunction can be inspected.

(Problems to be Solved by the Present Invention) The conventional device as described above can detect a balance dysfunction of a subject, but cannot perform correction training for removing the dysfunction. There was a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to detect a balance dysfunction and to simultaneously perform training for removing the dysfunction.

(Means for Solving the Problems) The present invention provides a barycenter for detecting the movement of the center of gravity of a person to be measured as electric signals of X and Y coordinates, and a function failure pattern in accordance with an output signal of the barymeter. An identification circuit for identification, a program selection circuit for selecting a training program according to the identification signal of the identification circuit, and a control circuit for outputting a control signal according to an output signal of the program selection circuit;
A drive mechanism that enables the pedestal of the barymeter to tilt in all directions, and that operates in response to a control signal from the control circuit; and an actual barycentric position and a target movement position in response to a control signal from the control circuit. And a display for displaying designated points such as.

(Operation of the present invention) Since the present invention is configured as described above, the degree of balance dysfunction can be measured by riding on the pedestal of the barycenter meter. Tilt the pedestal.

When the pedestal is tilted in this manner, the subject can move the center of gravity in accordance with the tilt of the pedestal, and can recognize the actual movement position at the indicated point on the display.

Therefore, the subject can correct the balance dysfunction while moving the center of gravity for moving the designated point to the center position which is a normal position.

In addition, if the designated point is set as the target moving position, if the center of gravity is constantly moved so that the center of gravity of the user is adjusted to the target moving position, training for correcting a functional disorder will be performed by itself.

(Embodiment of the Present Invention) In the illustrated embodiment, the base plate 2 is rotatably supported on the base 1 and the base plate 2 can be rotated by the electric motor 3.

The base plate 2 as described above has three electric motors 4 to
6 are provided, and eccentric cams 7 to 9 are provided on the rotating shafts of the motors 4 to 6, and the eccentric cams 7 to 9
The specific configuration of the barycenter a is as follows.

That is, the eccentric cams 7 to 9 are provided on the lower surface of the support plate 10.
And a pair of rollers 11 and 12 corresponding to the eccentric cams 7 to 9 are provided. Therefore, by driving the electric motors 4 to 6 and rotating the eccentric cams 7 to 9 corresponding thereto, the eccentric cam 7
The support plate 10 can be tilted in accordance with the amount of eccentricity of .about.9, but if the movements of the individual eccentric cams 7 to 9 are integrated, the support plate 10 can be tilted in all directions.

In the support plate 10 as described above, three charged electric converters 13 to 15 are provided at positions corresponding to the respective vertices of the isosceles triangle shown in FIG.
A pedestal 16 is placed on 15.

Then, the center of gravity when a person gets on the barycenter a as described above is measured as follows.

That is, the load received by the load electric converters 13 to 15 when a person rides on the pedestal 16 is set to P _{1 to} P ₃ , the position of the converter 13 is set as the origin, and a line connecting the converters 14 and 15 is used. An axis parallel to the X axis is defined as an X axis, and an axis perpendicular to the X axis is defined as a Y axis.
Are defined as (−x ₁ , y ₁ ) and (x ₁ , y ₁ ). Further, the position of the center of gravity of the subject on the pedestal 16 is (x, y).

Among the above setting conditions, the equilibrium condition of the moment about the Y axis is P · x where P is the weight of the subject.
= Because it is _{P 2 x 1 -P 1 x 1} , x = from this equation becomes _{{(P 2 -P 1) -x} 1} / P ...... (1). Similarly, the equilibrium condition of the moment about the x axis is
P · y = P ₂ y ₁ + P ₁ y _{1. From} this equation, y = {(P ₂ + P ₁ ) · y ₁ } / P (2)

Since P = P ₁ + P ₂ + P ₃ (3), x = {(P ₂ −P ₁ ) · x ₁ } / P ₁ + P from the expressions (1) and (3). ₂ + P ₃ ... (4), and from Expressions (2) and (3), y = {(P ₂ + P ₁ ) · y ₁ } / P ₁ + P ₂ + P ₃ ... (5)

Therefore, from a load-electrical transducer 13 to 15 x _1, y ₁ Prefecture,
By calculating the equations (4) and (5), the position of the center of gravity (x, y) of the subject can be obtained.

That is, the output signals of the load electric transducers 13 to 15 are amplified by the amplifiers 17 to 19 as shown in FIG.
The signals are converted into digital signals by the converters 20 to 22, and are processed by the arithmetic circuit 23.
To enter. The arithmetic circuit 23 calculates the position of the center of gravity, and the position of the center of gravity (x,
y) is input to the pattern identification circuit 24.

The pattern identification circuit 24 identifies the failure pattern according to the movement form of the center of gravity, and inputs the identification signal to the program selection circuit 25.

In the program selection circuit 25, an optimum program for correcting the failure pattern is selected and transmitted to the control circuit 26 in accordance with the failure pattern.

The control circuit 26 is connected to a drive mechanism b having the three electric motors 4 to 6 as main elements via an interface 27, and is connected to a display 29 fixed to a support 28 standing on the base plate 2. Is also connected.

In the display 29, the center O is a pedestal of the center of gravity a.
The scale 30 corresponds to the center of 16, and the scale 30 is displayed before and after the center O in the Y-axis direction, and the scale 31 on the left and right is displayed in the X-axis direction.

Reference numeral 32 in the drawing denotes a ring provided on the column 28. The ring 32 functions as a safety device for preventing the subject from dropping from the pedestal 16, and the ring is used during measurement by the subject. It also has a function as a sensor to determine whether or not it has touched 32.

Thus, a pattern identification circuit for identifying a failure pattern
In 24, a pattern of the center of gravity position that moves from moment to moment is identified, the symptom is determined according to the pattern detected by the identification circuit 24, and a program for directly displaying the symptom on a display can be selected.

Further, a training program is selected according to the movement pattern of the center of gravity measured by the center of gravity a. For example, as shown in FIG. 6, the display 29 gives a positive feedback indicating the actual position of the center of gravity of the person to be measured as the designated point 33, whereby the person to be measured recognizes the movement trajectory of the center of gravity of the person to be measured. And if there is something wrong,
It is possible to judge the abnormal pattern by oneself and to cope with it. Moreover, according to the identification pattern, the drive mechanism b is driven to tilt the pedestal 16, and the abnormality can be corrected while identifying the movement of the center of gravity according to the tilt direction.

In the case of FIG. 7, the position of the designated point 33 is displayed at a position shifted by 180 degrees with respect to the actual position G of the center of gravity, and so-called reverse feedback is performed.

In this way, the indication point 33 is displayed at the position opposite to the actual center of gravity G, and a stimulus completely opposite to that in the actual case is given to try to correct the abnormality. Also in this case, the training can be performed in relation to the tilt direction of the pedestal 16.

Further, in the case of FIG. 8, an indication point 34 for indicating the target movement position and an indication point 33 for indicating the actual position of the center of gravity are simultaneously displayed on the display.
This allows, for example, training how to bring the position of the center of gravity of the subject closer to the target movement position.

When the ring 32 is kept at the horizontal position shown in the figure, the limit switch 35 is turned on to make it function as a sensor.

Therefore, when the subject touches the ring 32 in the process of tilting the pedestal 16, the abnormality can be identified by detecting the touching direction, the strength, and the like.

FIGS. 9 and 10 show that a plurality of speakers
36 is provided for training to move the center of gravity of the subject in the direction of the sound emitted from the speaker 36.

(Effects of the Present Invention) Since the present invention is configured as described above, the movement trajectory of the center of gravity is patterned, and when there is an abnormality, the abnormality can be identified.

In addition, it is possible to perform correction training while grasping the movement locus of the center of gravity on the display and self-controlling the movement of the center of gravity.

In this way, while measuring the equilibrium function of the person to be measured, corrective training according to the measured disability pattern can be performed, so that the effect of diagnosis, that is, treatment, can be obtained.

[Brief description of the drawings]

1 is a perspective view, FIG. 2 is a side view partially in section, FIG. 3 is a plan view of a pedestal, and FIG. 4 is a principle of detecting a center of gravity. FIG. 5 is a circuit diagram, FIGS. 6 to 8 are views showing the display state of the display, FIGS. 9 and 10 show another embodiment of the ring, FIG. 9 is a partial perspective view, FIG. 10 is a sectional view taken along line XX. a ... centimeter, 24 ... pattern identification circuit, 25 ... program selection circuit, 26 ... control circuit, 29 ... display,
b ... Drive circuit, 33, 34 ... Point.

Claims (1)

(57) [Claims] 1. A barycenter for detecting the movement of the position of the center of gravity of a person to be measured as an electric signal of X and Y coordinates, an identification circuit for identifying a functional failure pattern in accordance with an output signal of the barymeter, and A program selection circuit that selects a training program according to the identification signal of the identification circuit, and a control circuit that outputs a control signal according to an output signal of the program selection circuit,
A drive mechanism that enables the pedestal of the barycenter to tilt in all directions and that operates in response to a control signal from the control circuit; and an actual movement position and a target movement position in response to a control signal from the control circuit. Equilibrium function measuring and training apparatus comprising a display for displaying an indication point such as