운동강도별 유산소 운동이 대사증후군 환자의 인슐린저항성, 레닌-안지오텐신 Ⅱ 및 C-반응성 단백에 미치는 영향
Effects of aerobic exercise intensity on insulin resistance, renin-angiotensin Ⅱ and C-reactive protein in patients with metabolic syndrome
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본 연구는 운동강도별 유산소 운동이 대사증후군 환자의 인슐린저항성, 레닌-안지오텐신 Ⅱ 및 C-반응성 단백에 미치는 영향을 규명하였다. 이를 위해 C 보건소에서 대사증후군으로 판정받은 중년여성을 선정하여 중강도 운동집단(n=9), 고강도 운동집단(n=9), 통제집단(n=8)으로 구분하였다. 12주간 운동프로그램은 %예비심박수(heart rate reserve: %HRR)로 운동강도를 결정하고 중강도 운동집단은 HRR 40~60%, 고강도 운동집단은 HRR 60~80%에서 주 5회, 40분간 트레드밀 걷기와 달리기를 실시한 후 다음과 같은 결론을 얻었다. 1. 대사증후군의 위험인자인 체중, 체지방율, 허리둘레, 공복혈당, 수축기와 확장기 혈압, 중성지방, LDL-콜레스테롤은 중강도 운동집단과 고강도 운동집단의 경우 사전에 비해 운동후에 유의하게 감소하였다. HDL-콜레스테롤은 중강도 운동집단과 고강도 운동집단의 경우 사전에 비해 운동후에 유의하게 증가하였다. 그러나 운동강도간 차이는 나타나지 않았다. 2. 인슐린과 인슐린저항성, 레닌과 안지오텐신 Ⅱ 및 C-반응성 단백은 중강도 운동집단과 고강도 운동집단의 경우 사전에 비해 운동후에 유의하게 감소하였다. 그러나 운동강도간 차이는 나타나지 않았다. 결론적으로 본 연구에서 운동강도별 12주간 유산소 운동이 대사증후군 위험인자, 인슐린저항성의 개선과 레닌-안지오텐신 Ⅱ 활성 억제 및 C-반응성 단백 감소에 긍정적인 효과를 미친 것으로 나타났다. 그러나 본 연구에서 중강도와 고강도 운동간에 차이가 나타나지 않았다. 이와 같이 운동강도에 영향을 받지 않은 점은 대사증후군 환자에 대한 치료시 권장되고 있는 중강도 운동뿐만 아니라 고강도 운동에서도 효과적인 것으로 볼 수 있다.
Abstract
The purpose of this study was to investigate the effects of aerobic exercise intensity on insulin resistance, renin-angiotensin Ⅱ and CRP in patients with metabolic syndrome. The subjects of this study were middle-aged women with metabolic syndrome. The subjects were randomly divided into the following three groups: moderate-intensity group(n=9, 40~60% of the heart-rate-reserve(HRR) method), high -intensity group(n=9, 60~80% of the HRR), and control group(n=8). The exercise groups were invited to participate in an exercise program consisting of a treadmill walking and/or running for 12weeks with frequency of 5times per week. The following results were found: 1. The obesity index(weight, percent body fat, waist circumstance), systolic blood pressure, diastolic blood pressure, fasting glucose, t-chol, TG, LDL-C were significantly decreased than those after treatment in both moderate and high-intensity exercise groups before treatment. The HDL-C levels were significantly increased than those after treatment in both moderate and high-intensity exercise groups before treatment. 2. The Insulin, Insulin resistance, renin-angiotensin Ⅱ levels, C-reactive protein were significantly decreased than those after treatment in both moderate and high-intensity exercise groups after treatment. Consequently, the moderate and high-intensity aerobic exercise during 12weeks effect positively on metabolic syndrome risk factors, insulin resistance, inhibition of renin-angiotensin Ⅱ activation and decrease of C-reactive protein of patients with metabolic syndrome.
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