دراسة مقارنة لبعض المتغيرات الفسيولوجية و البايوكيميائية بعد الجهد بين مراكز اللعب المختلفة في الكرة الطائرة

الملخص EN

The great development occurring among the different sports levels is a result of the interpretation of scientific researches and studies in the field of physical education as each sports game needs requirements distinguishing it from others ; those requirements are different, including the physical, physiological, psychological, and mechanical requirements according to the specialization as in the field of volleyball, it is noted that it is necessary that the sports teams’ coaches know their requirements and what is needed to be developed, such as fitness through developing and adapting the working functional devices, consequently, there will be biochemical changes coming along with the exerted effort during training and contests so that there will be no focus on one side over others, especially the physiological requirements and the energy system working on the game of volleyball as their positions are different (spiking and serving player, Libero or the sweeper, and the super volleyball shots players)Those different positions have different skills; therefore, their physical requirements are different and there is a difference in training them based on the playing position and this affects their functional adaptations.

The research problem is that some coaches in volley balldo not focus in their training sessions on the playing positions and the common training is the collective training and this negatively affects the performance of the volleyball players, which affects the adaptation among the plays based on the prevailing energy system in the game.

The aim of the study was to identify the differences of some physiological and biochemical variables after Anaerobic physical effort in the different playing positions (the spiking player, the server, and the sweeper) in volleyball.

Among the most important conclusions was the position of the spiking player is the lowest position in the pulse beating rate, the numbers of breathing, and the concentration of the lactic acid after effort compared to the rest of the other positions and that indicates to the adaptation occurring in the special training.