PERBEDAAN PENGARUH LATIHAN PLYOMETRIC BOX JUMP DAN BARRIER HOPSS TERHADAP DAYA LEDAK OTOT TUNGKAI PADA ATLET PEMULA BOLA VOLLEY KLUB DISPORA BINJAI TAHUN 2021

This study aims to determine the different effects of plyometric box jump and barrier hopss exercises and on increasing leg power in beginner volleyball athletes at the Dispora Binjai Club in 2021. This research was carried out at Club Dispora Binjai with a population of 25 people and using a sample of 12 people. This study uses an experimental research method with an instrument in the form of a test. The variables in this study are independent and dependent variables. From the results of research that has been carried out and the results of data processing with statistical analysis, it is obtained: Hypothesis I, tcount = 8.03 and ttable = 2.57 then tcount > t table , thus Ho rejected. Hypothesis II, tcount = 6.51 and ttable = 2.57 then tcount >t table. thus Ho rejected. Hypothesis III, tcount = 0.28 and ttable = 1.81 then tcount < ttable,. thus Ho accepted. From the research conducted, there is an effect of plyometric box jum and barrier hops exercises on increasing leg muscle power. And also there is no significant effect between plometric box jump and barrier hops training on beginner athletes in volleyball club Dispora Binjai in 2021.