Pengaruh Latihan Power Otot Tungkai Terhadap Hasil Lompat Jangkit Pada Siswa Putra Kelas XI SMK Negeri 2 Tanah Putih Kabupaten Rokan Hilir

Based on the author's observation of the male students of class XI of Negeri Negeri 2 Tanah Putih Vocational School, Rokan Hilir Regency, it is known that when students do triple jump number athletic branch, it is found that the student is still low and lacking in strength, the movement coordination is not optimal, so the jump is not far. The purpose of this study was to find out whether there was an effect of leg muscle power training on the results of infectious jump in male students of class XI of Negeri Negeri 2 Tanah Putih, Rokan Hilir Regency. This type of research is an experiment. The population in this study amounted to 19 people. The sampling technique used is total sampling. in this study used a pre-test and post-test limb muscle power for 30 seconds in each form of exercise. The data analysis technique used is the t test. Based on the results of data processing and discussion, it can be concluded that there is an effect of exercise of leg muscle power on the results of infectious jump on male students of class XI of SMK Negeri 2 Tanah Putih, Rokan Hilir Regency. With tcount = 2.94 while t table = 1.734 and with an increase in the ability of infectious jump in male students of class XI Negeri 2 Tanah Putih SMK Rokan Hilir Regency at 7.79%