Characteristics of Thermoregulatory Responses at Farming under Heat Environmental Conditions in Middle and Elderly Aged Men

  • Suzuki Eigo
    Environmental Symbiotic Studies, Graduate School, Tokyo University of Agriculture
  • Kashimura Osamu
    Faculty of International Agriculture and Food Studies, Tokyo University of Agriculture
  • Yorimoto Akira
    University Center for Intercultural Education, The University of Shiga Prefecture
  • Nakai Seiichi
    Faculty of Home Economics, Kyoto Women’s University

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Other Title
  • 中高齢者における夏季暑熱環境下農作業時の体温調節反応の特性
  • チュウ コウレイシャ ニ オケル カキ ショネツ カンキョウ カ ノウサギョウジ ノ タイオン チョウセツ ハンノウ ノ トクセイ

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Abstract

The purpose of this study was to examine the thermoregulatory responses at farming under heat environmental conditions in the middle and elderly aged men. The results showed the following. Heart rate at the farming in the middle and elderly group was significantly higher than that in young group. The increase of body temperature at farming in the middle and elderly group was significantly higher than that in young group. Total sweating rate at farming in the middle and elderly group was significantly lower than that in young group. Fluid supply at farming in the middle and elderly group was significantly lower than that in young group. Sodium chloride concentration and loss of sweating at farming in the middle and elderly group were significantly higher than that in young group.<br> The results revealed that in thermoregulatory responses in the middle and elderly aged men led to a high risk of heat disorders. Therefore, it is essential for the middle and elderly aged men to perform sufficient water and salt replacements as a preventive strategy against heat disorder at farming under heat environments.<br>

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