Effective the flexibility back hand in tennis serve

Abstract

the search goals is knowing the effect of training program toback hand in serve skill in tennis by use the practical way andequal group where chooses randomly.the sample of research where from 4th sport collage 30student experimental group (15), control group (15).the program is taking (8) weeks with 16 untie8 weeks with 16untie the time of each is (90) mints, the results are the programis developing the flexibility of back hand in tennis thereforeEffective tennis serve.