Physiological response to partial cooling in a warm environment-Numerical analysis and subject experiment-

  • Mori Ikue
    Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University
  • Hokoi Shuichi
    Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University
  • Takada Satoru
    Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University

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Other Title
  • 高温環境における局所冷却時の生理応答―人体熱モデルによる解析と被験者実験―
  • コウオン カンキョウ ニ オケル キョクショ レイキャクジ ノ セイリ オウトウ ジンタイ ネツ モデル ニ ヨル カイセキ ト ヒケンシャ ジッケン
  • —Numerical analysis and subject experiment—
  • ―人体熱モデルによる解析と被験者実験―

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Abstract

In this study, numerical analysis by using a thermoregulation model of the human body and subject experiment were carried out in order to examine the physiological response to partial cooling of the human body in a warm environment. Differences in physiological response were analyzed by comparing cooling of the head, trunk and extremities. In each case, heat loss was loaded for equal areas of skin. When the head was cooled, total heat loss from the whole body was less and mean skin temperature and mean body temperature were higher, than when the trunk or extremities were cooled. This was because of the decrease in thermal evaporation mainly caused by a decrease in head core temperature. From this analysis, it was assumed that greater heat loss is expected when cooling body parts other than the head, if the degree of cooling is equal. This hypothesis was supported by physiological responses observed in an experimental subject, whose feet or head were cooled by blowing cold air.<br>

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