Pengaruh Reactive Jump Terhadap Power Otot Tungkai Siswa Ekstrakurikuler Bola…

Problems in the residence of the student exctracurricular SMA An Naas Pekanbaru is still of the student exstracurricular Pekanbaru such, it is seen to be done from various tests and official competitions, so the lack of maneuverability is a factor contributing to the defeat. The purpose of this research was to observe the effect of practice reactive jump for legs muscle strength on student extr…