일회성 복합운동 실시순서에 따른 남성의 호르몬 및 대사 반응
The Effect of Sequence of Aerobic and Resistance Exercise on Hormones and Metabolism in Males.
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초록
본 연구의 목적은 유산소-저항운동으로 구성된 복합운동의 실시 중 운동순서에 따른 인체반응의 차이를 알아보고자 하였다. 이를 위하여 8명의 남성을 대상으로 65%VO2max의 유산소 달리기 운동(Aerobic exercise)과 10RM의 7종목 근력운동(Resistance exercise)으로 구성된 복합운동을 1차 저항운동, 2차 유산소운동(RA), 1차 유산소운동, 2차 저항운동(AR)의 순서로 실시하였고 그에 따른 시기별 에너지대사변인 (글루코스, 유리지방산, 젖산) 및 호르몬변인 (성장호르몬, 코티졸, 테스토스테론) 차이를 알아보았으며 결과는 다음과 같다. 첫째 글루코스는 운동순서와 시기에 의한 상호작용은 없었으나 단지 시기간의 주효과만 나타났다 (p<.05). 둘째, 유리지방산과 젖산은 시기와 운동순서에 의한 유의한 상호작용효과가 나타났으며(P<.05), 특히 회복기 1시간동안 RA에서 더 높은 경향을 보였다. 셋째, 코티졸은 운동순서와 시기에 의한 상효작용 및 주효과는 없었지만, 성장호르몬과 테스토스테론은 유의한 상호작용이 나타났다(P<.05). 특히 테스토스테론 최종운동종료 직후 AR에서 높았다. 이러한 결과는 남성의 근비대 등과 같은 효과를 위해선 복합운동 중 AR의 순서가 적합할 수 있으며, 지질대사의 촉진을 위해서는 RA 순서의 복합운동이 적합할 수 있을 것이다.
Abstract
The purpose of this study was to compare the difference in hormones and in metabolism according to the sequence of aerobic and resistance exercise in males. For this, 8 males participated and the exercises were composed of A(aerobic exercise : 65%VO2max running for 25min) and R(resistance exercise : 65%1-RM 7 kinds of exercise). All of subjects exercised AR(resistance exercise after aerobic exercise) and RA(aerobic exercise after resistance exercise) with term of 1 week. For the measure of hormones(growth hormone, cortisol, testosterone) and metabolic factors(FFA, glucose, lactate), bloods were sampled 5 times at before, post 1st exercise session, post 2nd exercise session, recovery 30min and 1 hour. The results were followed as blow : First, there was a no significant interaction in glucose level but just time main effects were found in both RA and AR (p<.05). Second, lactate and FFA had interaction by times and sequence, especially RA showed the higher tendency at recovery periods. Third, the levels of growth hormone and testosterone had significant interaction by times and sequence, but not cortisol. Additionally AR had higher testosterone tendency at post 2nd exercise session. These results indicated that AR may be more profitable for muscular hypertrophy, on the other hand, RA may be more effective for lipolysis or weight loss.
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