The Effects of Concurrent Training on Female Soccer Players

Abstract

Background
Due to the high metabolic and physical demands in soccer, an optimal strength and conditioning program is essential. The benefits of resistance training and high-intensity interval training in young athletes has been well documented; however, the effect of a concurrent strength and metabolic conditioning program on female soccer players has yet to be investigated.
Purpose
This study examined the effects of an 8-week concurrent strength and metabolic conditioning program on body composition, flexibility, speed, agility, anaerobic capacity, strength, and power in female soccer players.
Methods
Body composition and performance testing measures were recorded in female soccer players (n=14, age=16±1.0 yrs) before and after an 8-week sports performance camp that combined high-intensity interval training methods and periodized resistance training. Performance testing included 3-site skinfolds, sit and reach, pro agility test, 40-yd sprint, 300-yd shuttle run, and vertical jump. Strength testing included a 5-repetition maximum back squat, shoulder press, and bench press, and a 3-repetition maximum power clean. Comparisons were made using a paired samples t-test, and Pearson’s correlations between variables were calculated.
Results
Significant improvements were made in vertical jump (p<0.05), pro agility test (p<0.05), 40 yd sprint (p<0.05), squat (p<0.05), shoulder press (p<0.05), bench press (p<0.05), and power clean (p<0.05). There were significant correlations between power, agility and speed performance, and between power and strength.
Conclusion

A preseason concurrent strength and metabolic conditioning program can improve soccer players’ explosive strength and performance. Training protocols that use low volume and high loads (3 sets of 5-RM) to improve neural adaptations and avoid muscular hypertrophy should be studied in future research.