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Plyometric training is an effective training method in increasing muscle power, especially in the lower body which is very much needed in various sports. This study aims to examine the effectiveness of two types of plyometric training, namely Single Leg Hop and Double Leg Hop, on increasing leg muscle power. The study was conducted using a literature review approach to eight previous relevant studies. The results of the review showed that both types of training had a positive and significant effect on increasing leg muscle power. However, most studies concluded that Single Leg Hop training was superior in increasing unilateral strength and specific muscle explosive power, especially in sports such as futsal, basketball, and long jump. Thus, Single Leg Hop training can be recommended as a more effective method for developing lower muscle power, although the selection of training types still needs to be adjusted to the characteristics and needs of athletes.

The purpose of this study was to determine: (1) The difference in the effect of plyometric training methods between double leg bound training and double leg vertical power jump training on 100-meter running ability, (2) The difference in the effect between high balance and low balance on 100-meter running ability, (3) Interaction between plyometric and balance training methods on 100-meter running ability. The instruments used to collect data were: (1) Balance test (Modified Bass Test of Dynamic Balance), (2) 100-meter running ability test with time test, (3) Training program as a guideline that will be used in providing treatment . The data analysis technique used was Analysis of Variance (ANOVA) at a significance level of α = 0.05. The results of the hypothesis testing proved that: (1) There is no difference in the influence between double leg bound training and double leg vertical power jump training on 100-meter running ability. By looking at the similarity of the movements that both jump use both legs, it seems that these two exercises are variations in training, as a result the two plyometric training methods are not significantly different. (2) There is a difference in the influence between high balance and low balance on 100-meter running ability. The results of the data analysis showed that high balance has a significant difference in influence with low balance. (3) There is no interaction of influence between plyometric and balance training methods on 100-meter running ability. Related to the interaction hypothesis, it turns out that the results of the hypothesis testing have proven that there is no interaction between plyometric and balance training methods on 100-meter running ability where the calculated F value = 0.006 < than the F table value = 2.82 at a significance level of α = 0.05. Conclusion of the study: 1) There is no significant difference in influence between double leg bound training and double leg vertical power jump training on 100-meter running ability. 2) There is a significant difference in the influence of high balance and low balance on 100-meter running ability. 3) There is no interaction between plyometric training methods and balance on 100-meter running ability.