Pengaruh Latihan Variasi Plyometric terhadap Peningkatan Kemampuan Vertical Jump pada Atlet Putra Klub Bola Voli Usia Remaja

Abstract

The jump smash technique relies on the strength of the leg muscles. Leg muscles are the most important muscle group that supports jumping. Plyometric is a type of exercise that forces muscles to work quickly. Volleyball athletes must use different plyometric training methods before performing vertical jumps. The research method used a "one group pretest-posttest design" with a total sampling of 20 male volleyball players. This study used A vertical jump test to obtain pretest and posttest data. Data analysis using T-Test. The results showed a significant improvement in vertical jump ability after 18 training sessions, with a posttest score between 34 and 57 and a percentage increase of 24.3%. Statistical analysis showed a t-count of -18.685 with a significance of 0.000, indicating that plyometric exercise had a significant positive effect. These results can help sports coaches and teachers improve volleyball athletes' jump ability.