Pengaruh Latihan Double Leg Box Bound Terhadap Daya Ledak Otot Tungkai Pada S…

Based on the results of observations that have been carried out on extracurricular students at SMA Negeri 1 Benai, problems have been found related to the leg muscle power of long jump extracurricular students. This research was conducted in the field of SMA Negeri 1 Benai, Jalan Perintis No.5 Benai, Benai District. The design of this research is pre-test post-test one group design that begins …