Pengaruh Latihan Medicine Ball Terhadap Power Otot Lengan Atlet Putra Club Pb…

The problem in this research is stepping in to perform basic punches such as drop shot, net, drive and smash. Only the strength of the arm and shoulder muscles does not look good, this can be seen during the jump smash. there are still many balls that do not pass the net. This type of research is an experiment with the One-Group Pretest-Posttest Design approach. The purpose of this research was…