Kontribusi Kekuatan Otot Lengan Dan Bahu Dan Kelentukan Pergelangan Tangan Te…

The purpose of this study was to determine how much the contribution of arm and shoulder muscle strength, the contribution of wrist flexion and flexion of arm and shoulder muscles and wrist flexion with volleyball service in male students of SMA Negeri 5 Pekanbaru. This research was conducted at a volleyball court at SMA Negeri 5 Pekanbaru Jalan. Bawal No.43, Wonorejo, Kec, Marpoyan Damai, Peka…