THE USE OF BIOMECHANICAL CONTROL METHODS DURING THE PREPARATION OF VOLLEYBALL PLAYERS (LIBERO)

Abstract

The article presents the results of biomechanical control of volleyball players (libero) stances in the process of receiving the ball from serving and receiving the ball in defense. The use of the stabilography method made it possible to objectively assess the coordination stability of female libero volleyball players.

It has been proven that the stance for receiving the ball from serving differs from the stance for receiving the ball in defense according to biomechanical indicators, which is due to the difference in the performance of motor actions and, accordingly, affects the technique of game techniques.

Goal. To prove the effectiveness of the biomechanical control methods use during the training process of volleyball players in the position of libero.

Methodology. Theoretical and empirical methods such as comparison and generalization, computer stabilization, modeling, and mathematical and statistical methods were used to achieve the main objectives of the study.

Scientific novelty. The coordination structure differences of the volleyball players (libero) main stances execution, depending on the execution of technical actions, were determined.

Conclusions. In the process of biomechanical control, comparing the performance of two types of stances of libero volleyball players, it was found that the amplitude-frequency characteristics differ significantly depending on the specifics of the players. The amplitude indicators of female libero volleyball players playing in defense are significantly less than the indicators of female libero volleyball players who receive the ball after serving. For that reason, female libero volleyball players who specialize in defense have a higher level of coordination abilities to maintain a stable balance position.

According to the results of the correlation analysis, it was determined that the main contribution to the maintenance of the libero volleyball players static balance, when performing two types of stance of players L-1 and L-2 is made by amplitude indicators.

The range of the number of the significant connections in libero volleyball players is from 57 to 72.

With the help of biomechanical control, significant differences (p<0.05) in the coordination structure of volleyball players (libero) were found, and the expediency of changing libero players on the court depending on the performance of technical actions was confirmed, i.e. one libero player goes to receive the ball after serving the opponent, and the other – when submitting your team.

Prospects for further research on the outlined topic: further research into the coordination structure of the movements of female athletes in volleyball, depending on the volleyball players' performance of the technical techniques of the game.