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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.

This study aims to examine the influence of bounding (lompat kijang) and split squat jump training on sprint performance among Physical Education students at a university in Medan. A descriptive qualitative approach was used, involving ten participants selected through purposive sampling. Data were collected through in-depth interviews and analyzed using thematic analysis. The findings indicate that bounding exercises significantly improve stride length, movement coordination, and sprint acceleration. Meanwhile, the split squat jump contributes more to initial push-off strength, body stability, and lower-limb muscular endurance. Most participants reported that combining both exercises produces the most optimal sprint improvement, as it simultaneously trains horizontal and vertical power. Additionally, the combined training enhances running efficiency and increases participants’ confidence during short-distance sprinting. The study concludes that both plyometric exercises are effective and recommended for speed-training programs, particularly for students and beginner athletes seeking comprehensive sprint performance enhancement.