Afrizal2013-03-062013-03-062013-03-06Nickmatil Verdani Fitrihttp://repository.unri.ac.id:80/handle/123456789/2446Perbandingan Pengaruh Latihan Hurdle Jumps Dan Box Jump Terhadap Daya Ledak Otot Tungkai Pada Atlet Sekolah Sepak BolaThis study is an experimental research.Ttrials using experimental and statistical analysis to examine research done at the University of Riau Football School Athlete.Obtained through an initial test and final test before and after exercise to compare the two groups of samples with different treatments to find out which one is better training for explosive power leg muscles.This is due lack of exercise that leads to physical exercise and training programs that are less systematic and planned. The issues raised in this study is "What are the effects of increased exercise Hardle Jumps and Box Jump with explosive legs muscles power School Football Athletes Riau University" The hypothesis of this study "Comperative Effect of Exercise There Hardle Jumps and Box Jump with explosive power in the legs muscles power School Football Athletes Riau University "aims. This study for the Comparison Hardle Jumps and Box Jump with explosive power in the legs muscles. The analysis showed that there was a significant effect of increased exercise Box Jump and Hurdle Jumps (X) and explosive leg muscles power output (Y) . Based on t- test analysis results are t_hitung of 2.394 and 2.074 for t_tabel . t-count> TTable so it can be concluded that H0 is rejected and H1 accepted. Mean increase after tested by t-test showed that t-calculation is greater than t-table, exercise for 16 times Hurdle Jumps Exercise can increase leg muscle explosive power significantly.en-USHurdle Jumps and Box Jumpexplosive leg musclesstudent Paper Post Degree