The Acute Fatigue Effects of Small-Sided Games on Lower Limb Strength, Inter-Limb Asymmetry and Landing Technique in Young Under-15 Female Soccer Players
DOI:
https://doi.org/10.17309/tmfv.2025.5.10Keywords:
small-sided games, jump, inter-limb asymmetry, young female soccer player, high-intensity drillAbstract
Background. The increase in young female soccer players requires understanding the adaptations determined by sport-specific exercises both to enable improvements in sports performance and to reduce injury risk in women’s soccer.
Objectives. This study aimed to analyze the acute effects of Small-Sided Games (SSG) on landing technique control, lower limb strength and lower limb functional asymmetry in Under-15 female soccer players.
Materials and methods. A total of 18 young female soccer players (age:14.04±0.26 years, weight: 51.56±2.9 kg; height: 146.9±3.22 cm) randomly performed hop test, Landing Error Scoring System assessment and vertical jump at the end of warm-up (pre-fatigue condition) and post SSG (3vs3, 4 x 4 min on field 24,5m x 24,5 m, post-fatigue condition). The inter-limb asymmetry value was calculated by comparing the two hop tests (left and right) using the formula: (highest performing limb – lowest performing limb/highest performing limb)×100.
Results. The hop test and vertical jump results in the pre vs. post-SSG comparing showed a significant performance decrease (p<0.001, ES:1.43 and 1.43, respectively). The inter-limb asymmetry value significantly increased (p<0.001, ES:1.18) from 9.07±2.67% to 13.42±7.49%. The landing control value has undergone a substantial decrease from 5.72±0.67 to 7.83±0.86 (p<0.001, ES:1.29).
Conclusions. The findings indicate that high-intensity soccer drills have an impact on the landing control quality, decrease explosive strength performance, and increase inter-limb asymmetry value. Soccer-specific exercises must be carefully modulated within the training session.
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