Pengaruh Latihan Jump To Box, Depth Jump dan Single Leg Depth Jump Terhadap Peningkatan Kekuatan Otot Tungkai dan Power Otot Tungkai

Abstract

Plyometric exercise is form of exercise which vary. In this research, the researcher only uses three kinds of exercise – jump to box, depth jump and single-leg depth jump. This research aims to analyze the influence of jump to box, depth jump and single-leg depth jump towards enhancement of limbs muscle strength and power. Subject of this research is 40 students of SMA Negeri 1 Ngunut who join extracuricular, all of them are boy. This is quantitative semi experimental research which use matching-only design to clasify the group and Anova to analyze the data. During pretest and posttest, leg dynamometer were used to take the data of limbs muscle strength, while Jump MD were used to take the data of of limbs muscle power. Furthermore, the data were analyze using SPSS version 21. The result of this research shooed that there is influence of jump to box, depth jump and single-leg depth jump towards enhancement of limbs muscle strength and power. It can be concluded that plyometric exercise using box jump is very efficient to enhance the leg muscle performance.