RU2263528C1 - Apparatus for evaluation and exercising of joint mobility by "cord" test - Google Patents

Abstract

FIELD: physical culture and sports equipment.

SUBSTANCE: apparatus has working platform consisting of two surfaces movably connected with one another, and is further equipped with two vertical columns, each of said columns having at one side centimeter markings and at other side angular markings. Two clips are provided on each vertical column for fixing said surfaces of working platform. Apparatus for measuring angle of spreading of legs is formed as protractor rigidly attached by means of pressing screw to junction site of said surfaces. Leg retaining device is made in the form of belts fixed on surfaces of said working platform. Apparatus may be further equipped with central column positioned so that its height may be adjusted. Said column is disposed under working platform at the site of junction of its surfaces.

EFFECT: increased precision in evaluating mobility of lower limb joints.

2 cl, 3 dwg

Description

The proposed device relates to the field of physical culture and sports and is used to measure and train mobility in the joints of the lower extremities according to the test "Twine (right, left foot and straight)."

In the diagnosis of physical fitness of students (especially in complex coordination sports, in particular gymnastics), “Twine” is often used as a test to assess mobility in joints and elasticity of ligaments and muscles of the lower extremities.

It is known (1) to measure the degree of mobility in the joints of the lower extremities according to the "Twine" test using a belt with a plumb line attached to it, which shows the distance to the support.

However, the measurement using a plumb line attached to the belt does not allow fixing the legs in a straightened position and does not take into account the constitutional features of the subject (in particular, the length of the legs), which reduces the objectivity of the assessment.

In addition, a gravitational goniometer (2) is known, to which two branches are movably attached. When measuring mobility in a particular joint (ankle, knee, hip), the goniometer is fixed directly on the measured joint, and the branches - on the corresponding parts of the limbs (body). This device is the closest to the claimed and selected as a prototype.

Meanwhile, this device does not allow a comprehensive assessment of the mobility of all joints of the lower extremities and the elasticity of the ligaments and muscles surrounding the joint being studied, and also does not allow fixing the legs in a straightened position.

Therefore, the task that the proposed device solves is to increase the accuracy of assessing mobility in the joints of the lower extremities using the "Twine" test by fixing the position of the body when performing this test and the effectiveness of the training due to the possibility of regulating the load.

This task is achieved due to the fact that the known device for assessing and training mobility in the joints of the lower extremities according to the "Twine" test, containing a working platform consisting of two planes, movably connected to each other, a fixing device for the legs in the form of belts fixed on planes the working platform, and a device for measuring the angle of spreading the legs, the working platform is equipped with two vertical racks, each of which has, on the one hand, centimeter markings, and on the other, angular, with each on ikalnoy rack mounted two shackle fixing planes, with the work platform, and the device for measuring the toe angle is the dilution protractor, with clamping screw is rigidly attached to the junction planes of the working platform.

In addition, the device is additionally equipped with a central rack installed with the ability to adjust its height, which is installed under the work platform at the junction of its planes.

Analysis of the existing level of technology did not reveal a combination of features that match the distinctive features of the prototype of the claimed device. The search results showed that the claimed invention does not follow explicitly from the prior art and, therefore, meets the criterion of "inventive step".

The proposed device is shown in FIG. 1 where

1 - work site,

2 _{1, 2} - two planes of the working platform,

3 - central rack

4 - vertical racks.

5 - protractor,

6 _{1, 2, 3, 4} - four removable staples,

7 _{1, 2} - belts for fixing the legs on the working platform.

In FIG. Figure 2 shows the calculation of the angle of spreading legs as "positive" (ie, less than 180 °) ("a"), and negative (more than 180 °) ("b"), where

α is the angle between the plane of the platform and the "horizontal" connecting the "zero level" of the vertical rack and the upper point of the central rack;

β is the angle between the planes of the working platform;

A is the distance from the "zero level" to the place of attachment of the plane of the working platform;

C is the length of one plane of the working platform (in the proposed device design, equal to 120 cm).

In FIG. 2, in addition to the figure, there is a table showing the procedure for determining the "angle" of legs breeding according to the "Twine" test.

In FIG. Figure 3 shows in a table form a system for converting linear indicators of "vertical racks" into angular values and vice versa (in the case of using horizontal divisions on the vertical racks of the simulator as a guide).

The training device consists of a working platform (1), made in the form of two planes (2 ₁ , 2 ₂ ) movably fastened to each other (using two loops). To fix the test subject's legs on each plane, belts are provided (7 ₁ , 7 ₂ ). A protractor (5) is fixedly attached to the junction of the planes (on the front side) of the working platform. Adjoining the right and left of the work platform planes with removable clamps (6 _1, 6 _2, 6 _3, 6 ₄₎ are mounted vertical struts (4: _{1, 2),} which with one side lined centimeter graduations, the other - graduations showing the angular quantities. On each vertical rack, two removable brackets are mounted, attached to them by stop screws. In the case of measuring the "positive" angle in the "Twine" (ie, less than 180 °), a central stand (3) is used as a stand for the work platform.

The device operates as follows.

The test subject (trainer) assumes a sitting position along the working platform (1) with the legs frontally or sagittally apart, while the body and head are upright. Moreover, regardless of the degree of mobility in the joints, the legs take a straightened position and press firmly against the support, even at a “positive” angle in “Twine” (less than 180 °) (that is, in fact, the “Twine” position is imitated). To fix the legs of the subject, belts are used (7 ₁ , 7 ₂ ).

For “everyday” purposes, say, for operational purposes, only the indicators of the protractor can be used for evaluation (5). To do this, you need to set its ruler exactly horizontally by pre-setting the planes of the working platform at the "zero" marks of the vertical racks and the desired rotation of the protractor using the clamping screw. For more accurate measurements use indicators of vertical racks.

When the subjects demonstrate a “positive” angle in the “Twine”, a central stand (3) is placed under the work platform. If mobility in the joints of the legs is high (i.e., the angle of leg extension is greater than 180 °), then the central post (3) is removed, but at the same time, vertical posts (4 ₁ , 4 ₂ ) are placed with the corresponding angular divisions.

To assess mobility in the hip joints according to the test "Twine (right, left foot and straight)" is used, for example, a 10-point system:

1 point - the angle of leg extension in the "twine" is in the limit of 140 ° or less;

2 points - the angle of the legs in the "twine" is in the range from 140 ° to 150 °;

3 points - the angle of the legs in the "twine" is in the range from 150 ° to 160 °;

4 points - the angle of leg extension in the "twine" is in the range from 160 ° to 170 °;

5 points - the angle of leg extension in the "twine" is from 170 ° to 180 °;

6 points - the angle of leg extension in the "twine" is in the range from 180 ° to 190 °;

7 points - the angle of leg extension in the "twine" is in the range from 190 ° to 200 °;

8 points - the angle of leg extension in the "twine" is in the range from 200 ° to 210 °;

9 points - the angle of leg extension in the "twine" is in the range from 210 ° to 220 °;

10 points - the angle of leg extension in the "twine" is in the range of 220 ° and above.

Thus, the proposed training device can, regardless of the level of preparedness (for this test) and constitutional features of the subjects (trainees) with a high degree of objectivity, measure mobility in the joints using the "Twine" test both through linear and angular values. In addition, other advantages of the claimed device are:

- simplicity in its manufacture;

- relatively high accuracy of measuring mobility in joints according to the test "Twine";

- use of the device as a simulator (experimental data indicate the rapid achievement of the desired effect). At the same time, a special training on the development of mobility in the joints is controllable, since the load can be planned and adjusted using landmarks available either on the protractor or on upright posts;

- reducing the load on the knee joints (due to the fact that the legs fit snugly on the working platform) and its increase in the hip due to the weight of the upper body (head, arms, torso), which greatly facilitates the achievement of the necessary training effect.

The proposed simulator was tested in the training process of acrobats and aerobists at the initial stage of preparation and allowed to achieve significant improvement in athletes mobility in the joints of the legs in a short time.

Information sources.

1. Kholodov J.K., Kuznetsov V.S. Theory and methodology of physical education and sports. Textbook allowance for students. higher textbook. institutions. - M.: Publishing Center "Academy", 2000. - 480 p.

2. Dorokhov R.N., Guba V.P. Sports morphology. Textbook for higher and secondary special institutions of physical education. - M.: SportAkademPress, 2002 .-- 236 p.

3. RF patent No. 2211718, cl. A 63 B / 04, 2003 - prototype

Claims (2)

1. A device for assessing and training mobility in the joints of the lower extremities according to the "Twine" test, containing a working platform consisting of two planes movably connected to each other, a fixing device for the legs in the form of belts, mounted on the planes of the working platform and a device for measuring the angle breeding of legs, characterized in that the working platform is equipped with two vertical racks, each of which has centimeter markings on one side and angular markings on the other, and on each vertical stand There are two staples with the possibility of fixing the planes of the working platform, and the device for measuring the angle of spreading the legs is a protractor, with the help of a clamping screw, rigidly attached to the junction of the planes of the working platform. 2. The device according to claim 1, characterized in that it is additionally equipped with a central rack installed with the ability to adjust its height, which is installed under the work platform at the junction of its planes.

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