EE01528U1 - Measuring instrument of body front-bendability - Google Patents

Abstract

Measuring instrument of body front-bendability shaped as cuboid has the measuring scales shaped as rectangle, the measuring scales are located on two facets of the cuboid, and a conducting instruction of the measuring is located on another facet of the cuboid and one another facet of the cuboid is for other information. The measuring scales are provided to measure in metric system and inches separately. The different facets of the measuring scales are provided to measure the human body front-bendability for humans having different levels of bendability.

Description

 Technical field

The invention belongs to the field of (therapeutic) physical education, more specifically, the invention relates to a device for measuring the flexibility of the human body.

State of the art

Body flexibility is an important characteristic that indicates the flexibility of the human body and its readiness to soften the consequences of accidents and traumas. Nowadays, many children, including people involved in training, have insufficient flexibility. There are several solutions for determining flexibility, but they are based on placing the results of measurements of the length of various body parts into complex formulas and solving these formulas (in document SU1709995, in document RU2296506).

A method for determining the flexibility of the human body is known (in document SU971256, GO INZH STR INST, 07.11.1982), which is used to provide a quick and comprehensive assessment of the flexibility of the human body. The measurement of flexibility is carried out at a vertical wall equipped with four horizontal beams. The front edge of the beams is located at the level of the wall plane. The subject stands in a guard position, touching the wall with the heels, buttocks, shoulder blades and nape. The subject bends forward, with the arms extended at the elbow joints and is allowed to rise on the toes. The experimenter measures the distance from the sacrum point to the wall at the moment of maximum flexibility with a horizontal, taut centimeter tape measure. The sacrum point is previously measured and marked. In order to avoid lateral displacements between the body and the tape measure, there is a vertical line on the wall, relative to which the subject's body is located symmetrically. The result is divided by the body length up to the seventh cervical vertebra to obtain the flexibility index. The disadvantage of this solution is that the measurement results must be calculated.

A device and method for measuring flexibility ("4. Sit & Reach Test" (https://slideplayer.com/slide/11979165/) are known, where the measuring device is a stationary device placed horizontally with respect to the base surface, which is a box-shaped product with a table extending from the box. A measuring scale is cut into the middle of the table,

on which there is a sliding part, which is intended to fix the reading. In order to obtain a more accurate measurement result, the box is leaned against the wall. The subject sits in front of the device, places his straight legs against the device and bends his body forward and extends his arms to the maximum extent to measure the flexibility of the device. The disadvantage of the device is the material complexity of its manufacture and its high price.

The closest to the invention in terms of technical nature is a measuring instrument and method, where measurements of body forward bending are performed while standing using a device that includes a base or chair, a rigid ruler and a sliding wooden fixator (“Основы спортивной метрологии”, Zatsiorski, V., M., Moscow, 1979, 144 Ik). The test subject stands on the base, feet together, toes at the edge of the base. Without bending the knees, the test subject bends forward, trying to reach as low as possible with his hands. This position must be held for at least two seconds. The test is repeated twice. The result is recorded in centimeters. The ruler is fixed perpendicular to the base so that the ruler is level with the upper plane of the base, then the zero reading is approximately at the level of the test subject's knees. The best result corresponds to greater flexibility. The disadvantage of this solution is the instability of the measurement and it is not possible to make measurements en masse.

The essence of the invention

The aim of the invention is to produce a flexibility measuring instrument that is easy to manufacture and use.

The present invention comprises a rigid cuboid with a measuring scale, two faces of which have rectangular measuring scales and, optionally, one face of which has a guide for carrying out the measurement, wherein the measuring scales are provided separately for measuring in metric and inches. The measuring scale on one face is provided for people with little flexibility and the measuring scale on the other face is provided for people with flexibility. The fourth face is left free, e.g. for manufacturer's data or other information. The measuring instrument has a handle at its upper end.

The presented device works as follows: the measuring instrument is placed in the measuring position between the test subject's legs (the distance between the legs should be kept 10-20 cm) on the base surface.

(floor, step, exercise or sitting bench, etc.) vertically to the surface. Standing on straight legs, bend your body forward with your fingertips towards the surface, hold the maximum bending position for 2-3 seconds so that another person can record the measurement result on the measuring scale.

List of drawings

Figure 1 shows the first face with measuring scales of a cuboid measuring instrument intended for measuring the body flexibility of a person with little flexibility;

Figure 2 shows a second face with measuring scales of a cuboid measuring instrument intended for measuring the flexibility of a flexible human body;

Figure 3 shows a top view of the measuring instrument with a handle;

Figure 4 shows a measuring instrument in axonometric view - a basic drawing, with no measuring scales marked on the faces of the measuring instrument for the sake of simplicity.

Example of carrying out the invention

The presented body flexibility measuring device 1 is a cuboid with a depth of A (preferably 4.5-8 cm), a width of B (preferably 6-8 cm) and a height of C (in the range of 28.5-31 cm, in the preferred embodiment 30-31 cm). The cuboid has a handle 4 at its upper end, preferably made of a flexible material.

The first face 2 of the measuring device 1 has a measuring scale for measuring while standing on the floor, with the zero reading of the measuring scale being at the lower end of the first face 2. The first face 2 of the measuring device 1 has two measuring scales, one of which is given in centimeters and the other in inches: 0 to preferably 30 cm (with an accuracy of 1 cm) and 0 to preferably 12 inches (with an accuracy of 1/4 inch). The measuring scale of the first face 2 is used to measure people who do not bend well (cannot touch the base surface (e.g. the floor) by bending forward while standing on straight legs).

The second face 3 of the measuring device 1 has a measuring scale for measuring while standing on a bench or step, with the zero reading of the measuring scale at the upper end of the second face 3. The second face 3 of the measuring device 1 also has two measuring scales, one of which is given in centimeters and the other in inches: preferably 30 to 0 cm (with an accuracy of 1 cm) and preferably 12 to 0 inches (with an accuracy of 1/4 inch). The measuring scale of the second face 3 is used to measure flexible people from an elevated surface (e.g. from a gymnastic bench or from the bottom step of a staircase).

The third side of the measuring instrument 1 contains instructions for carrying out the measurement - a measurement method with diagrams and an example of measurement from a raised surface. In addition, the fourth side of the measuring instrument is left free and other information can be placed there (e.g. information about the manufacturer of the measuring instrument or the owner of a specific measuring instrument, etc.). These two sides are not shown separately in the drawings, but it is clear to a person skilled in the art that the measuring instrument according to the invention is four-sided (see also Figure 4).

The measuring instrument 1 optionally has a handle 4 at its upper end, preferably made of strong cord, leather or other flexible material.

The measuring instrument 1 is preferably made of wood, but other materials (e.g. plastic, cardboard, metal) may also be used. The operating principle of the measuring instrument does not depend on the material of the measuring instrument.

The measurement is performed as follows. The subject (preferably in socks or barefoot) stands on a surface, which can be the floor or an elevated surface (e.g. a (gymnastic) bench or a step) and the body flexibility measuring device is placed in the measurement position on the surface between the legs of the person being measured, vertically to the surface. The distance between the subject's legs is kept within 10-20 cm, the legs are kept straight and bent forward towards the surface with the fingertips. The bending position must be maintained for 2-3 seconds so that another person standing in front of the subject can record the measurement result on the measuring scale. The measurement result is the reading between the fingertips and the surface. More flexible people are measured on an elevated surface (e.g. a (gymnastic) bench or a step). For example, the measurement from a step is performed as follows: the measurement result is taken, from which the missing part, i.e. the height of the step and the step, is subtracted.

The distance between the height and the zero reading on the scale. This subtraction raises the zero reading to the step where the subject is standing. For example, if the step is 20 cm and the scale reading is 30 cm, the correct flexion measurement result is obtained by subtracting 10 cm from the measured result.

Nowadays, many children are unable to perform a flexibility exercise with their feet 20 cm apart (they lack the physical skills to do so, and losing balance when bending forward). Usually, flexibility has never been measured separately in children. However, body flexibility is a trainable and necessary characteristic so that people are less likely to get injured when falling, which is why the measuring device according to the invention has useful properties in the field of (therapeutic) physical education.

The presented flexibility measuring instrument is simple, lightweight, portable and can be used in any situation.

Claims (4)

1. A body flexibility measuring instrument comprising a rigid cuboid with a measuring scale, characterized in that the measuring instrument (1) has rectangular measuring scales on two sides (2, 3), the measuring instrument (1) has a handle (4) at its upper end, and the measuring instrument (1) is intended to be placed on a base vertically in the measuring position. 2. A body flexibility measuring instrument according to claim 1, characterized in that the first face (2) of the measuring instrument (1) has two measuring scales, one measuring scale being in metric units and the other measuring scale being in inches, and the zero reading of the measuring scales is at the lower end of the first face (2). 3. A body flexibility measuring instrument according to claim 1, characterized in that the second face (3) of the measuring instrument (1) has two measuring scales, one measuring scale being in metric units and the other measuring scale being in inches, and the zero reading of the measuring scales being at the upper end of the second face (3). 4. A body flexibility measuring device according to claim 1, characterized in that the handle (4) is made of a flexible material.