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KMID : 0359420180360030149
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Korean Journal of Sports Medicine
2018 Volume.36 No. 3 p.149 ~ p.157
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An Analysis of Change on Alpine Skiers’ Body Composition, Anaerobic Power, and Isokinetic Muscular Function between before and after Winter Season
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Choi Hye-Jung
Kim Seok-Hee
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Abstract
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Purpose: The purpose of this study was to investigate the changes on alpine skiers’ body composition, anaerobic power, isokinetic knee strength and muscle balance ratio (hamstring to quadriceps [HQ] ratio) before and after winter season.
Methods: The subjects of this study was 22 elite alpine skier, aged 16?20 years. Participants were divided into two groups (male, 12; female, 10). The study conducts a periodization training program in the winter season for 4 months. The data processing of this study was analyzed by paired t-test, using SPSS 21.0 statistics program.
Results: There was significance on fat free mass in male group (p＜0.05); there was significance on anaerobic power and average power in female group (p＜0.01), and fatigue index significantly increased in male group (p＜0.05). There was significance on extension power of male group and flexion power of female group in 30°/sec. There was significance on extension power of both groups in 180°/sec (p＜0.05). There was significant increase on flexion power of male group in 240°/sec (p＜0.01). There was significant increase on H/Q% of female right side in 30°/sec (p＜0.01). There was significance on right side of both groups in 180°/sec (p＜0.05). There were significances on right and left side of both groups in 240°/sec (male, p＜0.01; female, p＜0.05).
Conclusion: Therefore, this study suggests that the periodization training should be important to maintain and to develop seasonal condition of alpine skiers.
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KEYWORD
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Alpine ski, Anaerobic power, Isokinetic strength, Muscle balance ratio, Periodization training
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