Effects of Plyometric Jump Training on Sprint Performance in Young Male Soccer Players: A Systematic Review and Metaanalysis

This systematic review and meta-analysis evaluated the effects of supplementary plyometric training on sprint performance in highly trained male youth soccer players. A comprehensive literature search was conducted across PubMed, and Web of Science, resulting in the inclusion of 13 randomized controlled trials, with 8 studies providing data for quantitative synthesis. Participants were aged 1521 years, competing at regional to national levels, and engaged in structured soccer training for over four years. The pooled analysis revealed a statistically significant, moderate-to-large improvement in sprint performance following plyometric training compared to active controls (Hedges g = -1.31, 95% CI: -1.86 to -0.76, p < 0.00001). Heterogeneity was moderate to high (I = 68%), reflecting variability in training protocols and participant characteristics. Subgroup analyses indicated that interventions lasting >8 weeks and incorporating 3 sessions per week yielded larger effects. The findings support the inclusion of structured plyometric training as a complementary strategy to enhance sprint performance in elite youth soccer athletes, despite their high baseline training loads. Future research should address gender gaps, optimize dose-response relationships, and explore long-term adaptations.