Heavier Warm-Up, higher jump? testing weighted plyometrics in soccer

This study tests whether adding a weighted vest during plyometric warm-up exercises improves vertical jump height more than doing the same exercises without extra weight. Young male soccer players will perform both weighted and unweighted conditioning sessions, with jump performance measured at several time points afterward. The goal is to see if the extra load offers a performance boost and how long any effect lasts, which could help coaches design better warm-ups.