2021, Vol. 8, Issue 3, Part D

The importance of the research came in evaluating some Biocinematics variables, delving into the skill parts, diagnosing and addressing gaps in the technique of players ’performance, leading to better performance in the barrier skill than volleyball movement. Therefore, the two researchers decided to evaluate some Biocinematics variables to diagnose the strengths and weaknesses, working to address them and promoting a good performance by establishing numerical and quantitative values to benefit from them by coaches, players and researchers, and to emphasize them during training programs. The research aims to evaluate some Biocinematics variables when performing the blocking wall skill of movement for players of the youth national team in volleyball.

As for the most important results, it was found that there is a difference between the research sample and the national team of applicants in the variable approach speed, time of arrival variable for the maximum height that the player can reach, as well as the shoulder angle, the moment of blocking, and the variable wrist angle. The most important recommendations are to emphasize the timing of the advancement and meeting with the ball and to emphasize training according to the foundations of biomechanics for all stages, especially getting up and hitting the ball.