فاعلية تدريبات الحقيبة البلغارية على بعض المتغيرات البدنية و المستوى الرقمي لمتسابقي رمي الرمح

الملخص EN

The research aims at designing a set of Bulgaria bag exercises and recognizing the effectiveness of these exercises on some physical variables and record level for javelin throwing competitors.

The researcher used the experimental method by using the experimental design of the pre– post measurement for two groups, one is an experimental group , the other is a control group representing the research community of third female graders (modern regulation) at faculty of physical education– Beni -Suef university on the university year 2020/2021.

The research sample was selected randomly from the research community of (30) female students divided into two equal groups , one is an experimental group , the other is a control group.

The research findings found the positive effectiveness of Bulgaria bag exercises on the physical variables representing in ( legs – arms muscular strength , back – legs muscles strength , grip strength , dynamical balance , flexibility) and improve the record level of javelin throwing competitors for (the research sample) individuals.

The researcher recommends the necessity of interesting in operating the role of Bulgaria bag exercises in sport field in general and field and track competitions in particular for it's effective effect on the physical fitness and transfer this effect to the record level , interested in making and designing Bulgaria bag exercises and applying them on the faculty female students for it's important role in improving physical capacities and record level for javelin throwing competitors ,interested in Bulgaria bag exercises and related them with legs – arms exercises and the center muscles in the light of the nature and requirements of the athletics competitions for it's effective effect on the skilful and record level and that the programs of exercising the athletes of field and track competitions should include the Bulgaria bag exercise.