The effect of isolation exercises using the maximum repetition method on some biomotor abilities and the accuracy of the offensive blocking skill in volleyball for young players

Abstract

The research aims to study the effect of isolation exercises using the maximum repetition  method on improving some biomotor abilities ( such as strength , speed and flexibility) and the accuracy of performing the offensive blocking wall skill in volleyball for young players.By studying the values of biomechanical variables and seeking to develop those variables that have a major role in the performance of skills, including the skill of the offensive block wall according to mechanical foundations and indicators that give a good explanation for the values of some mechanical variables that have a major impact on skill performance through the amount of force applied, which helps to gain a large amount of the push index in less time, which may have a positive role in the performance of the skill of the offensive block wall. The importance of the research lies in the researchers' endeavor to use isolation exercises in the short repetitive method with a variable rhythm in developing some physical abilities and biomechanical variables that constitute an important essence for the technical performance of the skill of the offensive block wall in volleyball, in addition to achieving accuracy in performance by developing the strength of the legs to reach the highest possible height to block the ball, thus reaching the best performance in the game of volleyball. As for the problem of the research, it is through following up on the developments in the development of the game of volleyball in general and the development in the skill of the offensive block wall in particular at the local level and its impact on the result of the match.