| Articles : Change of Body Composition after Rapid Weight Loss as Different Body Weight of Taekwondo Players |
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| Abstract |
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Taekwondo players perform at the lowest weight class possible in order to gain a competitive advantage. The major technique of rapid weight loss was using a combination of the dehydration, fasting, and increased exercise in taekwondo players. This study examined the changes of body composition after rapid weight loss of about 5% through dehydration and caloric restriction of 3 days. Subjects were 24 college-aged male taekwondo players, and divided to three groups as the heavy-weight (n=6: HW), light-weight (N=6: LW) and control(n = 6: CO). HW and LW group performed the rapid weight loss program of 3 days through sauna (30 min/day) and caloric restriction (18 kcal/kg/day). Body weight significantly (p＜.05) decreased after rapid weight loss in HW and LW group, but percent body fat showed no significant difference. In HW group, upper arm skinfold thickness, waist, hip, thigh circumference, and in LW group, waist, thigh circumference, abdominal, supra-iliac skinfold thickness significantly (p＜.05) decreased after rapid weight loss as compared to before weight loss. From these results, the rapid weight loss through dehydration and caloric restriction of 3 days showed no significant change in body composition, but reduced a preferential reduction suggested the imbalance of blood electrolytes after rapid weight loss. |
| Key Words:
rapid weight Loss, taekwondo, body composition |
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