Comparison Plyometric Rope Jumping with Different Work Interval 10,20,30 Second towards Speed

Plyometric rope jumping is an easy training, and it can be done anywhere, also have an effect of physical performance. The goal of this research is to compare the effectiveness of plyometric rope jumping training with 10, 20 and 30 second - work interval toward speed. The total of subjects in this research was 33 students (trained) which would be divided into 3 groups of 10 second - work interval (n=11), 20 second - work interval (n=11), and 30 second - work interval (n=11). The measurement of speed was by using running 40 meters test. This research used consecutive sampling method with pre-test - post-test control group design. Research has shown mean of age 19.30±0.91 years old, body mass index 22.05±2.46 kg/cm2, leg 85.09±4.98 cm. There were significant differences (p>0.05) in speed with 10 second - work interval group (0.002), 20 second-work interval group (0.000) and 30 seconds-work interval group (0.037). In the ANOVA test there were not significant differences in speed(0.488). Plyometric rope jumping decrease speed with work interval 10, 20, 30 second.