We studied the physiological parameters of ball hitting by volleyball players in unsupported position and opportunities for their improvement by training with biological feedback. Physiological and biomechanical parameters of a direct attack hit from supported position correlate with biomechanical features ofjump shots. At the same time, the physiological basis of accuracy of shots consists of the improvement of trunk and arm movement coordination in the flight phase, the factors of intramuscular and intermuscular coordination of the hitting arm and the change in the displacement of the center of pressure. The use of computer stabilography training with biological feedback helps to optimize physiological and biomechanical parameters of physical actions in unsupported position, which ultimately causes an increase in the accuracy of jump hitting of the ball. The obtained results open the prospects for applying the method of computer stabilography to improve the performance of accuracy-targeted actions in unsupported position in various sports.
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