Comparison of the Iso-Push and Oscillatory Methods on Physical Performance in Youth Soccer Players

Abstract

This study evaluated the effects of six weeks of Iso-Push and Oscillatory training on strength, power, and agility in adolescent soccer players. A quasi-experimental pre-test/post-test design was employed with fifteen participants (age: 15.40 ± 1.51 years; weight: 63.4 ± 9.23 kg; height: 159 ± 14.2 cm), divided into two experimental groups (Iso-Push and Oscillatory) and one control group. The training program was implemented during the transitional period, incorporating various stimuli (Jump, Throw, Speed, Iso-Push, Oscillatory, and Strength training). Valid and reliable performance tests were used to assess outcomes in youth soccer players: Countermovement Jump (CMJ), Isometric Mid-Thigh Pull (IMTP), and the Modified 505 Agility Test. Data analysis was conducted using ANCOVA and effect size estimation (Cohen’s d). No statistically significant differences were found between groups (p > .05); however, small effects favored the Oscillatory group in CMJ (ES = 0.32) and agility (ES = −0.45), indicating potential functional benefits. The Iso-Push group showed moderate improvements in the rate of force development, though not statistically significant. These findings suggest that both methods may be viable for inducing neuromuscular adaptations in young soccer players, with Oscillatory training showing potential advantages in power and change of direction performance.