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여름철 폭염주의보 수준의 열 스트레스가 여성노인의 심폐체력 및 면역기능에 미치는 영향
박석(Sok Park),이영준(Young Jun Lee),이종우(Jong Woo Lee),라경환(Kyoung Hwan Ra),백승옥(Seung Ok Baek),하민수(Min Su Ha),이천호(Cheon Ho Lee) 한국사회체육학회 2010 한국사회체육학회지 Vol.0 No.39
The purpose of the study was to examine the influence of extreme heat environmental on cardiorespiratory fitness and immune function in elderly women. The subjects of this study were eight post-menopausal elderly women without any metabolic disease. All eight subjects were asked to do treadmill exercise(modified bruce`s protocol) in the laboratory and experimental temperature within laboratory were adjusted to two condition: Extreme heat temperature(33±0.5°C), normal temperature(20±0.5°C) and maintained 50±3% humidity condition. Each experimental exercise were monitored and analyzed the change of NK cell and immunoglobulin(IgG, IgA, IgM). Cardiorespiratory fitness(respiratory quotient, total exercise time, heart rate) was a significant difference at exercise and recovery between two condition(p<.05). In extreme heat temperature, respiratory quotient and heart rate were more rapidly increased, resulted in significantly higher than normal temperature(p<.05). Immune function(immunoglobulin and NK cell) was significantly decreased at post-exercise compared to pre-exercise(p<.05), Immune function were significantly decreased in extreme heat temperature(p<.05). These results show that elderly women can decrease their cardiorespiraory fitness and immune function on extreme heat temperature.