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effect of 12 weeks of circuit training on body composition and VO2max, foot muscle strength and speed performance in soccer adolescents

Poster Presentation XML
Paper ID : 1534-12THCONG
Oral / Poster Presentation File: sample_template_fa_1 (1) [Autosaved].pptx 
Authors
1Department of Physical Education and Sport Sciences, School of Humanities, Shahed University, Tehran, Iran.
2Sport Science Department, Faculty of Education and Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran
3Department of Sport Sciences, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
4Physical Education and Sport Science, Department of Physical Education, Shahid Chamran Campus, Farhangian University, Tehran, Iran.
5Department of Sport Physiology, Faculty of Sport Sciences, Islamic Azad University of Tehran Branch, Tehran, Iran
Abstract
Different exercise methods can have different effects on physical and physiological performance of athletes. The purpose of this study was to investigate the effect of 12 weeks of circuit training on body composition, VO2max, leg muscle explosive power, speed performance in adolescent soccer players. 30 adolescent boys and girls soccer players (mean age 15 years, weight average 36.44±5.55 kg, height 148.20±8.06 cm and body mass index 19.31±2.03) were selected randomly. The experimental (n = 15) and control (n = 15) groups were divided. The experimental group performed the exercises for 12 weeks / three sessions per week / 40 minutes per session. Data were analyzed using Kolmogorov-Smirnov test, two-way ANOVA at the significant level P≤0.05. The results showed that circuit training significantly improved the speed performance performed by the Bangsbo Repeated Speed Test in both sexes (P=0.03). Bonferroni post- hoc test showed that boys had more than girls (P = 0.04). Also, the explosive power of foot using the Sargent jump test showed a significant increase over 12 weeks (P=0.02), which was higher in boys compared to girls. Also, exercise training significantly increased the maximum oxygen consumption (P≥0.05), which was not significantly different between the two sexes. But the changes in body mass index and fat percentage of the football players were not statistically significant (P <0.05). Also, according to the results, these exercises were more effective in boys than girls. It can be said that circuit training increases the fitness and performance factors of adolescent soccer players. However, according to the results, these exercises have improved the adolescent boys soccer performance as well as the effect on the body composition of adolescent boys and girls.
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