Hubungan Kekuatan Otot Lengan Dan Bahu Dengan Kemampuan Service Atas Bola Vol…

Based on the problem found that the volleyball service capacity of 20 students, there are 12 students who are not categorized as good at performing top service. this is because the physical condition of students such as muscle strength in the arms, shoulders and balance is not optimal. The purpose of this research was to determine the relationship between arm and shoulder muscle strength an…