فاعلية تمرينات التوازن على قيم انحراف مسار مركز ثقل الجسم خلال مراحل الأداء الفني للضربة الساحقة للاعبات الكرة الطائرة تحت 18 سنة

Abstract EN

The aim of the research was to try to identify the effectiveness of balance exercises on the values of the deviation of the body mass center during the stages of technical performance of the smash hit for the under-18 years female volleyball players.

The research sample was randomly selected from the u-18 team of Smouha Social Sports Club in Alexandria, where 8 players were purposively selected out of (16 players).

The researchers used the experimental approach using the one-group experimental design with the pre- and postmeasurements for its relevance to the nature and purpose of the research.

The most important results were that the proposed training program using the balance exercises improved the stable and motor balances as well as the values of the deviation of the body mass center during the stages of technical performance of the smash hit for the under 18 years female volleyball players.

The most important recommendations were using the proposed training program using the balance exercises improved the stable and motor balances as well as the values of the deviation of the body mass center during the stages of technical performance of the smash hit under study, also similar studies should be conducted on other skills and different age groups for the female volleyball players using different forms of physical exercise.