An Analysis of Change on Alpine Skiers' Body Composition, Anaerobic Power, and Isokinetic Muscular Function between before and after Winter Season.
10.5763/kjsm.2018.36.3.149
- Author:
Hye Jung CHOI
1
;
Seok Hee KIM
Author Information
1. Department of Counseling, Health and Kinesiology, Texas A&M University-San Antonio, San Antonio, TX, USA.
- Publication Type:Original Article
- Keywords:
Alpine ski;
Anaerobic power;
Isokinetic strength;
Muscle balance ratio;
Periodization training
- MeSH:
Body Composition*;
Education;
Fatigue;
Female;
Humans;
Knee;
Male;
Seasons*
- From:The Korean Journal of Sports Medicine
2018;36(3):149-157
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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.
