Pengaruh Latihan Standing Barbell Triceps Extention Terhadap Kekuatan Otot Le…

The problem in this researh it still a lack of muscle strength of the arms and shoulders during serving up a ball can not pass trough the net Based on these problems the writer give the standing barbell triceps extention exercises to know the effect of standing barbell triceps extention on muscle arm strength and shoulder in doing up service on the men's volleyball team of SMP Negeri 34 Pekanba…