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여름철 폭염환경이 여성노인의 대사적변인 및 피로유발물질 생성에 미치는 영향
라경환(Ra Kyong-Hwan),이종경(Lee Jong-Kyong) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.4
The purpose of the study was to examine the influence of extreme heat on metabolic factor and fatigue 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 fatigue material. Metabolic factor(total exercise time, unearobic threshold, VO2max) was a significant difference at exercise and recovery between two condition(p<.05). In extreme heat temperature, total exercise time, unearobic threshold and VO2max were more rapidly decreased, resulted in significantly lower than normal temperature(p<.05). Fatigue factor(ammonia, inorganic phosphate and lactic acid) was significantly increased at post-exercise compared to pre-exercise(p<.05), Fatigue factor were significantly decreased in extreme heat temperature(p<.05). These results show that elderly women can decrease their cardiorespiraory fitness and fatigue material on extreme heat temperature.
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