الفهرس 
الإطار العام للبحثيوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
The research aims to identify the effect of Isokinetic exercises using elastic ropes inside and outside the water on each of :-
1 - The level of some special physical variables (under study) among crawlers swimming on the abdomen (the main research sample).
2- The skillful level of the crawlers swimming on the abdomen (the basic research sample).