Physiological Responses of Men and Women during Exercise in Hot Environments with Equivalent WBGT

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著者

    • KEATISUWAN Waree
    • Department of Physiological Hygiene, National Institute of Public Health
    • OHNAKA Tadakatsu
    • Department of Living Environmental Sciences, Faculty of Human Environmental Sciences, Fukuoka Women's University
    • TOCHIHARA Yutaka
    • Department of Physiological Hygiene, National Institute of Public Health

抄録

Eight Japanese men and women participated in this study. They were randomly exposed to two environments: hot-dry; HD (Ta=40°C, rh 30%, wet bulb globe temperature (WBGT)=32°C) and hot-wet; HW (Ta=31°C, rh=80%, WBGT=32°C) for 110 min. During the exposure, they rested on a bicycle ergometer for 20 min during rest and 30 min during recovery, then they pedaled it with an intensity of 40% Vo<sub>2</sub> max for 60 min. Tre, Tsk, and HR were recorded every minute. Total sweat loss and dripping were measured by independent bed balances which was connected to a computer processing with an accuracy of 1 g throughout the experiment. Sweat sodium concentration at forearm and back sites were collected by sweat capsule technique. These results showed that ΔTre, Tsk, evaporated sweat, dripping sweat, body heat storage of both sexes in HD were significantly higher than these in HW during exercise. HR of men in HD at the end of recovery was slightly higher than that of women. Whereas the sweat sodium concentration at forearm and back sites in both sexes remained unchanged either in HD or HW environment, it was found that HD was more stressful than HW environment under equivalent WBGT.

収録刊行物

  • Applied human science : journal of physiological anthropology  

    Applied human science : journal of physiological anthropology 15(6), 249-258, 1996-11-01 

    Japan Society of Physiological Anthropology

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各種コード

  • NII論文ID(NAID)
    10002424657
  • NII書誌ID(NCID)
    AA11053183
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13413473
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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