JPH0724119Y2 - Isometric leg force meter - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is mainly used for running, jumping, and throwing on land, on ice, on snow,
Alternatively, isometric legs that measure leg strength, which plays an important role in all underwater sports, specifically leg strength shortening (push strength), leg extension (kick strength) and leg flexion (curl strength). It relates to a dynamometer.

[Prior Art] Conventionally, as shown in FIG. 6, for example, as shown in FIG. 6, a chain 32 connected to a rear leg of a vertically long table-shaped measuring table 31 is used.
The belt 34 was connected to the measurement table 31 via the dynamometer 33, and the subject P laid on the measuring table 31 with his ankle in contact with the belt 34, and the leg was extended to measure the leg muscle extension force.

[Problems to be Solved by the Invention] However, in the above-described conventional technique, although the leg muscle extension force can be measured among the leg muscle forces, other leg muscle forces, that is, leg muscle bending force and leg muscle shortening force cannot be measured. , There was a problem that we had to rely on another measurement method.

Therefore, the present invention provides an isometric leg strength meter capable of measuring the three items of leg strength, leg extension strength, leg flexion strength, and leg strength shortening force, and is intended to solve the problems of the prior art. is there.

[Means for Solving the Problems] That is, according to the present invention, an upper measuring table is provided on the rear part of a vertically long frame via legs and the front part of the frame serves as a lower measuring table. Attach a pair of brackets on both sides of the front end, and attach a pair of brackets to these brackets.
Also, the base ends of the arm-shaped arms are pivotally attached, and a lower measuring bar for measuring leg muscle extension force is installed between the lower end portions of these arms, and leg muscle flexion is provided between the front end portions of these arms. Installed a front measurement bar for both force measurement and leg muscle shortening force measurement,
The isometric leg muscle force meter is characterized in that the front measuring bar and the lower measuring bar are equidistant from the pivot axis of the arm, and a dynamometer of a strain gauge is connected to the lower measuring bar. It is a thing.

[Operation] In the isometric leg dynamometer thus configured,
When measuring the leg muscle extension force, the subject sits down on the front part of the upper measuring table and extends the leg with the ankle in contact with the lower measuring bar, and this extending force is applied to the lower measuring bar. When measuring the flexion force of the leg muscles with a connected dynamometer, bend the leg with the subject lying down on the upper measurement table and the ankle in contact with the front measurement bar. Is measured with the dynamometer via the arm, and when measuring the leg muscle shortening force, the subject lies on the lower measurement table and presses the front measurement bar with the sole of the foot, and this pressing force is Measure with a dynamometer.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, an upper measuring table 3 is provided on a rear portion of a vertically long frame 1 via height adjustable legs 2. The upper part of the frame 1 is formed as a lower measuring table 4, and the legs 2 are provided on the left, right, left and right of the upper measuring table 3, and the upper legs 5 to 5 are hung on the center of the rear part of the frame 1, respectively. Established lower leg 6-6
The pin 9 can be inserted into and removed from a desired pin hole 8 of the pin holes 7 provided on the side surfaces of the lower legs 6 to 6 and a plurality of pin holes 8 to 8 provided on the upper and lower sides of the upper legs 5 to 5 respectively. Inserting.

Horizontal bases of L-shaped brackets 10 are fixed to the left and right of the front end of the upper measuring table 3, respectively.
A pair of left and right bifurcated arms 11, 1 on the outside of the front upper end of 0, 10.
The base end of 1 is supported by a pivot 12 in the left-right direction, and between the front upper end 13 of the pair of arms 11, 11, between the leg muscle shortening force measurement and leg muscle bending force measurement A bar (14) is installed, and a lower measurement bar (16) for measuring leg muscle extension force is installed between tip parts (15, 15) of the lower part of the pair of arms (11, 11). The front measuring bar 14 and the lower measuring bar 16 are equidistant from the axis of the pivot 12 and the lower measuring bar 16 is connected with a strain gauge dynamometer 18 via a connecting chain 17. A total of 18 is connected to the lower leg 6 in the center with a pin 19,
A chain 17 is arranged substantially at right angles to the line X connecting the pivot 12 and the lower measuring bar 16.

Further, 20 is a stopper attached to the bracket 10, which is an arm.
The arm 11 is brought into contact with the rear surface of the arm 11 to maintain the normal posture of the arm 11. Reference numerals 21 and 22 denote grips projecting from the left, right, front, and rear of the upper measuring table 3, respectively, and 23 grips installed on both sides of the lower measuring table 4 and on the lower legs 6 on both front sides.

In the leg dynamometer of this example as described above, when measuring the leg extension force (kick force), the subject P is placed on the front part of the upper measurement table 3 as shown in FIG. The leg is extended with the ankle in contact with the lower measurement bar 16 while sitting on a chair, and the extension force is measured by a dynamometer 18 connected to the lower measurement bar 16 to obtain a measured value of the leg muscle extension force. Further, when measuring the flexion force (curl force) of the leg muscles, as shown in FIG. 4, the subject P is lying down on the upper measuring table 3 and the ankle is in contact with the front measuring bar 14. Since the legs are bent and the front measurement bar 14 and the lower measurement bar 16 are equidistant from the pivot 12, this bending force is applied via the arm 11 to the dynamometer.
Measure with 18 and use as the measurement value of leg flexion force. When measuring the leg muscle shortening force (bushing force), as shown in FIG. 5, the subject P lies on the lower measuring table 4 and the front measuring bar on the sole.
14 is pressed, and the pressing force is measured by a dynamometer 18 to obtain a measured value of the leg muscle shortening force.

Further, in this example, in order to maintain the posture of the subject P, the front grip 21 is grasped in the case of measuring the leg muscle extension force, and the rear grip 22 is grasped in the case of measuring the leg flexion force. In the case of grasping and measuring the leg muscle shortening force, it is desirable to grasp the grip 23 and perform each measurement.

[Effects of the Invention] As described above, in the present invention, a single leg dynamometer measures the three items of leg muscle extension force, leg muscle flexion force, and leg muscle shortening force, which are important measurement items of leg muscle strength. Therefore, it is possible to eliminate the inconvenience of conventionally requiring a leg dynamometer for measuring each of these measurement items.

[Brief description of drawings]

FIG. 1 is a right side view of an embodiment of the present invention, FIG. 2 is a turning plan view thereof, FIG. 3 is a front view thereof, and FIGS. 4 and 5 are right side views in use thereof. , FIG. 6 is a right side view of a conventional example. 1 ... frame, 2 ... leg, 3 ... upper measuring table, 4 ... lower measuring table, 10 ... bracket, 11 ... arm, 14 ... front measuring bar,
16 ... Lower measuring bar, 18 ... Force meter

Claims (1)

[Scope of utility model registration request] 1. An upper measuring table is provided on a rear portion of a vertically long frame via legs, a front measuring portion of the frame is a lower measuring table, and a pair of brackets are attached to both sides of a front end portion of the upper measuring table. The base ends of a pair of bifurcated arms are pivotally attached to these brackets, and a lower measurement bar for measuring leg muscle extension force is installed between the lower ends of these arms, and the front of these arms is also installed. A front measurement bar for both leg muscle flexion force measurement and leg muscle shortening force measurement is installed between the tip ends of the, and the front measurement bar and the lower measurement bar are equidistant from the pivot axis of the arm, An isometric leg dynamometer characterized in that a strain gauge dynamometer is connected to the lower measurement bar.