تأثير تدريبات باستخدام الحبال المطاطية (4dpro)‎ لتنمية القوة المميزة بالسرعة و مستوى أداء بعض مهارات الكرة الطائرة

الملخص EN

The current research aims to develop some exercises using pro 4D to develop the speed-to-speed strength of volleyball players and improve the skill level of SLIHKS (crushing, fender wall) of the players of the New Valley University volleyball team for the academic year 2020 / 2021 through the design of a set of trainings similar to performance and in the same motor range of skills in question, where the research was conducted on the players of the volleyball volleyball team (22) Player and the researcher used the tool Pro 4D to apply the proposed exercises and the application of the research for (6) weeks by (3) training units weekly, and takes the time of unit (90) s divided between the trainings of arms, torso and legs and the researcher reached the results of satisfactory confirmed the extent of the impact of the exercises on the development of the special force at speed, which in turn reflects on improving the skill level of the skills of the crushing multiplication, the wall of repellent i have a sample of research