혈중 젖산축적개시점 수준에서의 유,무산소성 운동이 신체조성, 에너지 섭취량, 식욕조절관련 호르몬에 미치는 영향 = Influence of Aerobic and Resistance Exercise on Body Composition, Energy Intakes, and Appetite Regulating Hormones in the Onset of Blood Lactate Accumulation

국문 초록 (Abstract)

이 연구는 혈중 젖산축적개시점 수준에서의 유·무산소성 운동이 신체조성, 에너지 섭취량, 그리고 식욕조절관련 호르몬에 어떠한 영향을 미치는가를 규명하는데 그 목적이 있었다. 연구대상은 중년비만여성 50명을 선정하였으며, 젖산축적개시점 수준에서의 유산소성 운동그룹(AE-OBLA) 10명, 젖산역치 수준에서의 유산소성 운동그룹(AE-LT) 10명, 젖산축적개시점 수준에서의 무산소성 운동그룹(NE-OBLA) 10명, 젖산역치 수준에서의 무산소성 운동그룹(NE-LT) 10명, 통제그룹(CON) 10명으로 구분하였다. 본 실험의 운동프로그램은 주 3회씩, 12주간의 과정으로 진행하였으며, 준비운동 및 정리운동 각 10분, 본운동은 40분간 실시하여 매 운동시마다 총 60분씩 수행하였다. 운동강도는 혈중젖산농도가 2mmol·L-1을 의미하는 젖산역치수준 시점과 젖산축적개시점인 4mmol·L-1 수준으로 설정하여 운동프로그램을 적용하였으며, 체중, 체지방률, 제지방량, 에너지 섭취량, 렙틴, 그렐린, 인슐린을 측정하여 다음과 같은 결과를 얻었다. NE-OBLA그룹은 AE-LT그룹과 비교하여 체지방률의 유의한 감소 결과를 가져왔으며(p＜.001), NE-LT그룹보다 제지방량의 증가 현상을 나타내었지만(p＜.05), 체중 및 에너지 섭취량에서는 그룹간 차이가 없었다(p＞.05). 식욕조절관련 호르몬에서, 렙틴과 인슐린은 NE-OBLA그룹이 AE-LT그룹(p＜.001) 및 NE-LT그룹(p＜.05)보다 감소하였으며, 그렐린은 유의하게 증가하는 결과를 나타내었다. 결론적으로, 고강도의 무산소성 운동에 따른 신체조성의 변화는 식욕조절관련 호르몬에 긍정적인 변화를 야기시켰지만, 에너지 섭취량에는 영향을 주지 않았다.

다국어 초록 (Multilingual Abstract)

The purpose of this sudy was to determine the influence of aerobic and resistance exercise on body composition, energy intakes, and appetite regulating hormones in the onset of blood lactate accumulation. The subject were 50 obese women, 10 aerobic exercise group in the onset of blood lactate accumulation (AE-OBLA), 10 aerobic exercise group in the blood lactate accumulation (NE-OBLA) 10 anaerobic exercise group in the blood lacate threshold (NE-LT), and 10 control group (CON). The subjects have performed the exercise program for 60 minytes a day and 3 times a week with a level of 2mmol·L-1 for the blood lactate threshold and a level of 4mmol·L-1 for the onset of blood lactate accumulation during 12 weeks. Body fat significantly decreased in NE-OBLA comoared with AE-LT (p<.001) and NE-LT (p<.05). In conclusion, there was positive reponses for body composion and appetite regulating hormones to anaerobic exercise in high intensity, but not for energy intakes.

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