The Comparison between Cool and Warm-hot Environments on Lipolytic Response during Prolonged Exercise

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概要

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• The purpose of this study was to investigate the effect of cool exposure on lipolytic response during prolonged intermediate-intensity exercise in humans. Eight male subjects participated in this study; they performed 120-min cycle ergometer exercise at 60% of maximal oxygen uptake (VO_2max) in a climatic chamber at 10℃(C) and 30℃(WH). There were no significant differences in oxygen uptake and respiratory exchange ratio between the two conditions during the prolonged exercise. Significant influences of cool exposure were observed in the changes in both heart rate and rectal temperature (p<0.01). Although cool exposure had no significant effects on plasma triglyceride, free fatty acid, and glycerol levels, changes in adrenaline and noradrenaline levels at C were significantly lower than WH during the prolonged exercise (p<0.01). Changes in the ratio of glycerol to noradrenaline (Gly/Nad), as an index of lipolytic efficiency, were significantly high at C as compared with WH (p<0.01). These results suggest that cool exposure has an influence on lipid metabolism during prolonged intermediate-intensity exercise, from the viewpoint of efficiency in lipolysis.

• 日本生理人類学会の論文

著者

• Kim Mitsuharu

  兵庫医科大学

• HORI Seiki

  兵庫医科大学

• KAYA Mitsuharu

  Department of Physiology, Hyogo College of Medicine

• TSUJITA Junzo

  Department of Physiology, Hyogo College of Medicine

• HORI Seiki

  Department of Physiology, Hyogo College of Medicine

• OKU Yoshitaka

  Department of Clinical Physiology, Chest Disease Research Institute, Kyoto University

• KOYAMA Katsuhiro

  Faculty of Education and Human Sciences, University of Yamanashi

• ISHIGAKI Toru

  Department of Materials Science and Technology, Muroran Institute of Technology

• Oku Yoshitaka

  Department Of Clinical Physiology Chest Disease Research Institute Kyoto University

• Oku Yoshitaka

  Department Of Physiology Hyogo College Of Medicine

• Hori Seiki

  Department Of Applied Chemistry Faculty Of Science And Engineering Kinki University

• Hori Seiki

  Department Of Physiology Hyogo College Of Medicine

• Tsujita J

  Department Of Physiology Hyogo College Of Medicine

• Tsujita Junzo

  Department Of Physiology Hyogo College Of Medicine

• Kaya Mitsuharu

  Department Of Physiology Hyogo College Of Medicine

• Ishigaki Toru

  Department Of Exercise And Health Science Aichi Prefectural University Of Fine Arts And Music

• Koyama Katsuhiro

  Faculty Of Education And Human Sciences University Of Yamanashi

• Yamashita Yoichiro

  Laboratory for Health and Sports Science, Polytechnic University

• Yamashita Yoichiro

  Laboratory For Health And Sports Science Polytechnic University

• Tujita Junzo

  兵庫医科大学

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