젖산역치 , 젖산최고치 및 회복기 젖산농도에 대한 체중감량 기간의 효과

다국어 초록 (Multilingual Abstract)

The purpose of the present study was to compared a difference of 3day rapid weight reduction and 10day weight reduction in treadmill performance, lactate threshold, peak lactate and recovery lactate concentration. Twenty taekwondo athletes participated as subjects of this study. The subject were randomly devided into two group. 1) 3day rapid weight reduction group (3day RG, n=l0) 2) 10day weight reduction group (10day RG, n=10). All subject was performed a weight loss through the use of exercise with a sweat suit and some diet restriction. It was allowed a weight loss of 1-1,5kg/day in 3day RG, and 300-500g/day in 10day RG. Body weight was 6Yo lower than initial body weight. 3day RG was revealed a signi5cantly reduced results for treadmill time to exhaustion (p<010) and peak lactate (p<004) in weight reduction state than normal weight state, whereas 10day RG was shown a significantty decreased value for peak heart rate (p<023) and peak lactate (p<005) in weight reduction compared to initial normal weight. It was demonstrated a significant difference in treadmill run time to exhaustion between 3day RG and 10day RG (p<048). Also, recovery blood lactate concentration was shown a significantly reduced values in weight loss state compared to normal weight state in both group, but no significant difference between 3day RG and 10day RG. In conclusion, results of the present study indicate that two weight reduction procedures results in decrease in treadmill run time, peak lactate and recovery lactate concentration. It can be suggest that two weight loss rnethods decrease the anaerobic metabolism from reaching its maximum