تأثير تمرينات خاصة في تطوير ميكانيكية القدرة الانفجارية للأطراف السفلى و الأداء المهاري للاعبي حائط الصد (السنتربلوك) بالكرة الطائرة

Addressing the explosive power of the most important duties of a mechanical key to the analysis of motor performance and the most important indicators that could measure the level of the impact of the training process and its evolution as scientific .. Access to the highest level of performance skill, and adopted a researcher hypothesis supports the use of overlapping training and diversification using a large mechanical methods of training, which will create various effects and multi-functional devices in which will be reflected thereby to increase the ability to adapt to the requirements of the skill of the players. The importance of this research lies in the importance of the effects of mechanical ability of the explosive for skill bulwark (Alsntr Block) volleyball as the skill of additional duties of offensive web volleyball and the importance of the best methods and techniques for its development as one of the seeking to find most important requirements for the players Alsntr Block volleyball, and therefore the impact in improving the level of achievement for the player and the team alike. The research problem is the low level of ability explosive players, which is one of the disadvantages suffered by volleyball and that impede the course of its development, he noted researcher that the majority of players, clubs, Iraqi and from suffer from the apparent decrease in the level of different denominations to performance, due to the low level of ability explosive special for the players, who lead to the case of hospitalization, and slow early fatigue and to the lack of focus and the low level of overall performance. The study aimed to: - identify the variables Albayumkanikih explosive power of lower limbs and performance skills of the players bulwark (Alsntr Block) volleyball. - Understand the impact of exercise on the development of mechanical ability of the Parties to the lower explosive and performance skills of the players bulwark (Alsntr Block) volleyball. The hypotheses are: - the special vocabulary exercises a positive impact in the development of mechanical ability of the Parties to the lower explosive and performance skills of the players bulwark (Alsntr Block) volleyball.