운동 강도에 따른 장기간 저항성 운동이 중년여성들의 과산화지질(MDA)과 항산화효소(SOD)에 미치는 영향
The Effects of Long-term Resistance Exercise According to Exercise Intensity of Middle-aged Women on MDA and SOD
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본 연구의 목적은 운동 강도에 따른 장기간 저항성 운동이 중년여성들의 MDA(지질 과산화물) 및 SOD(항산화효소)에 미치는 영향을 알아보는 데 있다. 실험대상자는 중년여성으로서 저항성 운동그룹(N=8, age=46.23±3.89yrs.)과 대조군(N=8, year=45.86±4.67)으로 나누어 연구하였다. 저항성 운동프로그램은 16주간 4주씩 Stage 1-4, 4개의 단계로 각 단계 간 1RM을 측정하여 강도는 60-80%로 점진적 과부하의 원칙으로 단계별로 나누어 구성하였으며, 운동은 주 3회 1일 60분간 실시하였다. 또한 MDA 및 SOD는 운동전, 중(8주후), 후(16주후)로 나누어 측정하였다. 그 결과 MDA는 운동군에서 8주후 유의(p<0.05)하게 감소하였고, 8주후부터 16주까지는 증가는 있었지만 유의차는 없었다. 그리고 두 그룹 간 측정시기별 상호작용효과는 유의(p<0.05)한 차이가 있는 것으로 나타났다. 또한 SOD는 운동군에서 16주후에 유의(p<0.05)하게 증가되었고, 반면 대조군에서는 16주후, 유의(p<0.05)하게 감소된 것으로 나타났다. 그리고 두 그룹 간 측정시기별 상호작용효과는 유의(p<0.01)한 차이가 있는 것으로 나타났다. 위의 결과를 종합하면, 16주간 점진적 운동 강도에 따른 저항성 운동이 중년여성들에게 있어 MDA를 감소시키고, SOD를 증가시킨 것으로 나타났다. 특히, 운동 강도에 따라 MDA는 운동군에서 1RM의 60-70%일 때는 유의하게 감소하였지만, 강도(1RM의 70-80%)가 올라갈수록 서서히 증가되는 것을 알 수 있었으며, 반면 SOD는 강도가 증가하더라도 긍정적인 결과를 나타냈다. 이상과 같이 장기간 운동 강도에 따른 저항성 운동은 중년여성들에게 있어 MDA를 감소시키고, SOD를 증가시켜 활성산소에 대한 산화적응 및 방어기전을 높이는데 효과가 있는 것으로 나타났다.
Abstract
The purpose of this study is to investigate the effect of long-term resistance exercise according to exercise intensity of middle-aged women on MDA and SOD. The object of the study was middle aged women, which was divided into exercise group(N=8, year=46.23±3.89) and control group(N=8, year=45.86±4.67). Resistance exercise program consisted of Stage 1-4, 4 stages taking 16 weeks, each 4 weeks measuring 1RM in each stage with 60-80% of intensity according to gradual overload principle, and the exercise was made 3 times a week for 60 minuets a day. And MDA and SOD was measured before exercise, in exercise and after exercise. As the result, MDA was decreased significantly in exercise group after 8 weeks and between 8 weeks and 16 weeks, there was any increase, but no significant difference. In control group, there was no change and interaction effect by measurement period among two groups showed significant difference. And SOD increased significantly in excise group after 16 weeks, on the contrary in control group, it decreased significantly after 16 weeks. And interaction effect by measurement period among two groups showed significant difference. As the result of this study, resistance exercise according to exercise intensity for 16 weeks for middle aged women decreased MDA and increased SOD. Especially, it was found that MDA decreased significantly at 60-70% of 1RM in exercise group, but as intensity goes up, it increased gradually. On the contrary, SOD showed positive result though intensity increased. In conclusion, it was showed that resistance exercise according to exercise intensity of long period for middle aged women had effect on raising oxidation adaptation and defence capacity about free radical by decreasing MDA and increasing SOD.
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- "The Effects of Long-term Resistance Exercise According to Exercise Intensity of Middle-aged Women on MDA and SOD"
- "The purpose of this study is to investigate the effect of long-term resistance exercise according to exercise intensity of middle-aged women on MDA and SOD The object of the study was middle aged women which was divided into exercise group Resistance exercise program consisted of Stage 1-4 each 4 weeks measuring 1RM in each stage with 60-80% of intensity according to gradual overload principle and the exercise was made 3 times a week for 60 minuets a day And MDA and SOD was measured before exercise"
- "MDA was decreased significantly in exercise group after 8 weeks and between 8 weeks and 16 weeks there was no change and interaction effect by measurement period among two groups showed significant difference And SOD increased significantly in excise group after 16 weeks on the contrary in control group it decreased significantly after 16 weeks And interaction effect by measurement period among two groups showed significant difference As the result of this study resistance exercise according to exerc", there was any increase In control group
- "MDA was decreased significantly in exercise group after 8 weeks and between 8 weeks and 16 weeks there was no change and interaction effect by measurement period among two groups showed significant difference And SOD increased significantly in excise group after 16 weeks on the contrary in control group it decreased significantly after 16 weeks And interaction effect by measurement period among two groups showed significant difference As the result of this study resistance exercise according to exerc", there was any increase In control group