運動時全身発汗応答の季節変動からみた体温調節機能の特性

The Annals of physiological anthropology : 生理人類学研究会会誌 10 巻 3 号 163-170 頁 1991-07-01 発行
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タイトル ( jpn )
運動時全身発汗応答の季節変動からみた体温調節機能の特性
タイトル ( eng )
Functional Differentiation of Thermoregulation, Particular Referenecs to Seasonal Variation of Whole Boby Sweat Rate of Exercising Man
作成者
鳥井 正史
佐々木 隆
中山 英明
収録物名
The Annals of physiological anthropology : 生理人類学研究会会誌
10
3
開始ページ 163
終了ページ 170
抄録
We investigated the seasonal variation of sweating response during exercise. Four adult heaithy men repeated a moderate bicycle exercise (60 watts) in a climatic chamber of an ambient temperature of 30瀉 (relative humidity, 45%) in winter, spring, summer, and fall. In summer, sweat rate immediately increased as soon as the exercise started, whereas in winter in a few minutes. The mean sweat rate during exercise was significantly different between winter and summer. The transient reduction of the T_SK was observed at the beginning of the exercise in winter. The T_SK decreased in proportion to increasing of sweat rate in each season. Significantly negative correlation were found between sweat rate and the rate of change of T_SK during exercise in each season. The slope and intercept of regression line were significantly different between winter and summer. The index of sweating was made available for the relative value, changing rate against annual mean value of total sweat loss (ΔSR, %). The relative value rather than the absolute value (i.e., expressed as g・m^<-2>・h^<-1>) corrected well with skin temperature. It is suggested that the present results may reflect adapted changes in the thermoregulatory mechanisms to seasonal acclimatization. Moreover, the fall in skin temperature during exercise may be not due to increased evaporative cooling, but may be the result of vasoconstriction porbably caused by non-thermal factors.
著者キーワード
Seasonal and natural acclimatization
Warm and cold seasons
Temperature regulation
Thermal response
Moderate exercise
NDC分類
医学 [ 490 ]
言語
日本語
資源タイプ 学術雑誌論文
出版者
日本生理人類学会
発行日 1991-07-01
権利情報
日本生理人類学会
本文データは学協会の許諾に基づきCiNiiから複製したものである
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0287-8429
[NCID] AN10219533
[NAID] 110002507001