Effect of Plyometric Training Jump Techniques on Speed and Explosive Power of Lower Limbs in Football Players

Abstract

This study examined the effects of plyometric jump training on speed and lower-limb explosive power in football players. Twenty U21 elite male players from Algeria's Association El Khroub club were randomly allocated into an experimental group (n=10) undergoing plyometric jump training and a control group (n=10) following conventional training. Performance was assessed using the 30-meter sprint test and countermovement jump (CMJ) test. Statistical analyses included independent/paired t-tests and two-way ANOVA. The study results revealed significant improvements in CMJ performance between pre- and post-tests (p<0.05; ES=0.63-1.31), with a pronounced main time effect (p<0.05; η²=0.693-0.935). The experimental group demonstrated superior CMJ gains compared to controls (p<0.05; η²=1.31). However, no significant 30-meter sprint enhancements were observed (p>0.05). While plyometric training proves effective for developing explosive power, its speed-related outcomes require cautious interpretation due to the study's limited sample size. The variability in training responses underscores the influence of program design factors (duration, volume, intensity). These findings highlight the necessity for tailored interventions addressing sport-specific speed physiology. Further research should incorporate larger cohorts and extended intervention periods to validate these observations.