What helps gymnasts control their body position in space?

Usually, when performing various gymnastic exercises, the athlete clarifies the position of his body in space based on the trainer's instructions, such as “above”, “below”, “good”, etc. The coach's subjective perceptions may not always be accurate. What can help gymnasts and their coaches control their body position in space? It is precisely for the purpose of differentiating body position during exercises that we are considering. training apparatus. With its help, the quality of training and preparation of gymnasts is significantly accelerated and improved.

A simulator for determining the position of a gymnast’s body in space.

Let's consider the diagram of the device (Fig. a). The first block includes: a frame with holes in it for belts 8, a protractor 1, a small disk 4, a locking screw 10. A stand 3 with an axis in its upper part is attached to the duralumin frame. Protractor 1 and two arrows with weights rotate on the axis: one large (arrow 2 of the protractor), the other small (arrow 5 of the small disk). On the protractor and on the small disk located on the protractor, there is one fixed contact 6 and 11 and a limiter 7 and 9 for the movement of the arrows (respectively, on the small disk there is a small arrow, on the protractor there is a large one). Small disk 4 rotates on its axis and is fixed in the desired position by tightening the nut (with a “wing”) on the other side. The protractor is fixed with a locking screw 10, which is unscrewed from the base of the frame. Resting its tip against the end surface of the protractor, it fixes it in any position.

The second unit - power supply and alarm - consists of a rechargeable battery and a small-sized bell (or light bulb). The protractor is fixed so that when the device is tilted, a large arrow with a weight under the influence of its gravity, turning on an axis, reaches contact in a given position, closing the circuit. The small disk also turns so that the small arrow on the contact, if the device continues to tilt under the influence of gravity, moves away from it. The operation of the device is based on the closing and opening of an electrical circuit. Therefore, when the gymnast reaches a given position, the bell rings; when deviating from it, the bell stops. The device can provide both sound (bell) and light (light) information. The power source can be located both on the device frame and on the athlete’s body.