운동생리학 : 환경온도차이가 지구성운동시 혈청 LDH, CK 활성 및 Cortisol 농도에 미치는 영향 = The effects of different environment temperature on serum Lactate dehydrogenase, creatine kinase activity and cortisol concentration during prolonged exercise

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate the effects of different environment temperature on serum LDH, CK activity and cortisol concentration. Subjects were seven healthy males who not taking any particular physical training.Temperature and humidity was consisted of high temperature(35±0.5°C), normal temperature(20±0.5°C), Low temperature(5±0.5°C) and maintained 50±3% humidity condition. Treadmill exercise maintained 60% VO2max exercise in the chamber. LDH, CK and cortisol concentration were compared between measured time by one-way ANOVA with repeated measure. Differences were considered significant at the 95% level of confidence(p<.05). Serum LDH activity was a significant difference at recovery 15min between group (p<.05), Tukey post-hoc analysis further revealed that LDH activity was significantly greater in high temperature than normal temperature. Serum CK activity was not significant difference. Cortisol concentration was a significant difference at 30min adaptation in the chamber(p<.05), tukey post-hoc analysis further revealed that cortisol concentration was significantly greater in low temperature than high temperature and normal temperature. These finding suggest that exercise is mainly factor of efflux enzyme and high temperature shows complex and additional factor in injury of skeletal muscle.

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