비만 및 대사증후군 지표의 개선을 위한 복부비만 중년여성의 적정운동량
Effect of Weekly Exercise Volume on obesity and its metabolic syndrome in centrally obese mid-life women
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강현식, 홍혜련, 강국희, 이지영, 진영수. 비만 및 대사증후군 지표의 개선을 위한 복부비만 중년여성의 적정운동량. 운동과학, 제15권 제4호, 301-308, 2006. 본 연구의 목적은 중년여성들을 대상으로 12주간 실시한 운동 프로그램에서 비만과 대사증후군 개선을 위한 적정 운동량을 제시하는 것이었다. 본 연구의 참여 피검자는 폐경 전 복부비만중년여성(허리둘레 ≥ 80cm, BMI ≥ 25kg/m2)으로서, 12주간 댄스스포츠 운동 동안의 주당 운동에너지 소모량에 따라 낮은 운동량(LV-EX, 1,000kcal/week), 중등도 운동량(MV-EX, 1,300kcal/ week), 그리고 높은 운동량(HV-EX, 1,600kcal/week) 집단으로 구분하였다. 본 연구 결과, 체중, 허리둘레, BMI, 그리고 체지방율은 LV-EX, MV-EX, HV-EX 집단 모두에서 통제집단과 비교하여 유의하게 낮았으며, 운동량이 증가할수록 운동의 효과가 더욱 증가하는 용량-반응(dose-response relation- ship)의 관계를 갖는 것으로 나타났고, 비만지표와 대사증후군지표 중에서 DBP와 TC의 유의한 개선효과가 HV-EX 집단에서만 관찰되었다는 것을 고려할 때, 12주 운동 프로그램에서 한국인 중년여성의 비만지표 개선을 위한 최소한의 운동량은 주당 ≥1,000kcal이나 비만관련 대사증후군 개선의 측면까지 고려하였을 때의 적정 운동량은 주당 ≥1,600kcal인 것으로 사료된다.
Abstract
Kang, H.S., Hong, H.R., Kang, K.H., Lee, J.Y., Jin, Y.S. Effect of Weekly Exercise Volume on obesity and its metabolic syndrome in centrally obese mid-life women. Exercise Science, 15(4), 301-308, 2006. The purpose of the current study was to investigate the weekly optimum volume of exercise needed to improve obesity and metabolic indices in centrally obese, mid-life women who participated in a 12 wk-exercise program. Based on the volume of energy expended during the exercise training sessions, the participants were divided into low volume exercise(LV-EX) group(1,000kcal/week), moderate volume exercise(MV-EX) group(1,300kcal/week), and high volume exercise(HV-EX) group(1600kcal/week). We found that all the exercise groups, as expected, had significantly greater reductions in body weight, waist circumference, body mass index(BMI), and percent body fat in a dose-response manner than the control group. And there were similar results in diastolic blood pressure(DBP) and total cholesterol(TC) only, with no significant differences in any other variables among the groups. Unlike obesity indices, however, the HV-EX group had significantly higher reductions in DBP and TC than the CON group, with no significant differences among the exercise groups. In addition, although it was not statistically significant, there was a tendency for the exercise groups to have a greater improved cardio-respiratory fitness than the CON group. In conclusion, the current findings suggest that a minimum amount of 1,000kcal/week is needed to improve obesity indices and possibly exercise-induced energy expenditure of 1,600kcal/week appears to be optimal for the improvement of obesity and its-related metabolic syndrome markers centrally obese mid-life women.
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