여대생의 유산소 운동과 저항운동의 일회성 복합운동 실시순서에 따른 인체대사 및 호르몬 반응 = The Effects of Sequence of Aerobic and Resistance Exercise on Metabolic Factors and Hormones in College Aged-Women

국문 초록 (Abstract)

이 연구에서는 여대생을 대상으로 유산소운동과 저항운동의 일회성 복합운동 실시 순서에 따른 인체대사 및 호르몬 반응의 차이를 알아보고자 하였다. 이를 위하여 8명의 20대 신체 건강한 여성을 대상으로 1주일 간격으로 65%VO2max의 달리기 유산소운동과 7종목의 65% 1-RM 저항운동으로 구성된 복합운동의 순서를 달리하여 실시하였다. 단일 유산소운동과 단일 저항운동은 참고독립변인으로서 함께 관찰하였다. 운동순서 및 시기(운동전, 운동직후, 회복 30분, 회복 1시간)에 따른 호르몬(성장호르몬, 코티졸, 테스토스테론 및 에스트라디올) 및 인체 에너지 대사변인 (글루코스, 유리지방산, 젖산)을 비교한 결과는 다음과 같다． 첫째, 성장호르몬(p＝007)과 코티졸(p＝027)은 운동의 순서와 시기에 의한 유의한 상호작용 효과가 나타났으며, 그 중 성장호르몬은 저항운동－유산소운동이 유산소운동－저항운동 순서보다 높았다. 반면 테스토스테론과 에스트라디올은 운동 순서와 시기에 의한 상호작용 효과 및 운동순서에 의한 주효과는 없었다. 둘째m 글루코스(p＝024), 유리지방산(p＝010), 젖산(p＝002)은 운동형태와 시기에 의한 상호작용 효과가 있었으며, 특히 운동직후의 유리지방산은 저항운동－유산소운동이 높았다. 글루코스는 저항운동－유산소운동 직후가 유산소운동－저항운동 직후보다 높았다. 코티졸은 유산소운동－저항운동이 저항운동－유산소운동보다 낮았다. 셋째, EPOC(p＝000)와 호흡교환율(p＝000)은 운동형태별로 시기에 따른 변화경향에 차이가 있었다. 그 중 EPOC는 저항운동－유산소운동이 유산소운동－저항운동보다 높았다. 이상의 결과들은 여성에게 있어 저항운동－유산소운동의 순서로 복합운동을 실시할 경우 스트레스호르몬(코티졸) 반응 및 RPE는 더 높을 수 있지만, 운동 중 및 운동직후 성장호르몬 분비를 촉진함으로써 유리지방산 농도 증가로 인한 지방산화가 더 높게 나타날 수 있다. 특히, 운동종료 후 1시간까지의 EPOC 결과 또한 저항운동－유산소운동 순서에서 더 높게 나타남으로써 여성들의 지방산화 촉진을 위한 복합운동 순서로서 저항운동 후 유산소운동의 실시가 추천될 수 있다，

다국어 초록 (Multilingual Abstract)

This study examined the influence of hormonal response to various subsequence of aerobic and resistance exercise. Eight females participated in four times exercise which were organized with single aerobic exercise (A: treadmill running at 65%VO2max for 25mm), single resistance exercise (R: bench press, squat, lat pull down, leg arid arm curl, triceps extension, shoulder press, three sets at ten repetitions 65%1-RM with an interset rest period of 105s), resistance exercise after aerobic exercise (A-R) and aerobic exercise after single resistance (R-A) as a combined exercise type. Blood was obtained before and after the exercise and 30min and one hour after finishing the exercise. Growth hormone (p=007), cortisol (p=027) showed the significant interaction effects by exercise and trials, No significant difference was seen in the concentrations of estradiol and testosterone between exercise, but just showed the highest increase after finishing R-A exercise and which maintained the highest concentration among the exercises. Glucose (p=024), free fatty acids (p=010) and lactic acid (p=002) had significant interaction effect by exercise type arid trials respectively, especially glucose showed more concentration of R-A than A-R. EPOC and RER had significant interaction by exercise and trials (p=000 and p=000, respectively), particularly EPOC m R-A was higher than single resistance and A-R. These results indicated that growth hormone response to aerobic exercise is revitalized by the prior resistance exercise. This effect might be caused by the increase in blood FFA concentration.

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