Contribution rates of some mechanical variables at the moment of hitting the ball in the level of skill performance of the backhand shot with both hands among tennis players

نسب مساهمة بعض المتغيرات الميكانيكية لحظة ضرب الكرة في مستوى الاداء المهاري للضربة الخلفية بكلتا اليدين للاعبي التنس

الملخص

The  research aimed to  identify the contribution rates of some mechanical variables at the moment of hitting the ball in the skill level of the backhand  shot with both hands  among tennis players. The researchers hypothesized the existence of contribution rates  for some mechanical variables in the level of skill performance of the backhand  shot with both hands among  tennis players. The  research sample consisted of (8) tennis  advanced  Players from ten in Nineveh Governorate. The researchers concluded that there were significant contribution rates for the two variables (right knee angle, height of the center of gravity) at the moment of hitting the ball in the skill level of the backhand shot  with both hands. The researchers  recommended tennis coaches  emphasize  on adopting  mechanical variables that showed moral  contribution for its role in developing the skill of backhand shot  with both hands, with more  attention to mechanical variables that were produced by the study.