Pengaruh Latihan Medicine Ball Terhadap Kekuatan Otot Lengan Dan Bahu Pada At…

The problem in this study is that the strength of the jump smash athletes of Club PB Bank Riau badminton sons of Riau Islands Pekanbaru is still lacking, this can be seen from various trials and official matches and this is one of the factors causing the defeat. This type of research is a type of experimental research to see the effect of the form of training. The purpose of this study was to l…