Hubungan Kekuatan Otot Lengan Bahu Dan Kelenturan Otot Punggung Dengan Hasil …

The observation of researchers, students of class VIII can not generate maximum repulsion, can be seen from the deficiencies in the prefix, while holding the bullet, bullet exit position, the arm strength and position of the body at the time refused. The purpose of this research to look at the relationship of muscle strength and flexibility of the arm and shoulder muscles of the back with the s…