男性と女性の熱適応に対する生理学的反応は,両性において同様の熱適応をもたらす
Gabrielle E W Giersch1, Andrew M Greenfield1, Shaun C Brazelton1,2
1U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, USA.
Journal of applied physiology (Bethesda, Md. : 1985)
|August 29, 2025
まとめ
オスとメスは10日間の熱適応 (HA) に似た生理的適応を示します. 熱ストレスに対する反応には 異なる生理学的メカニズムが関与しているかもしれません
科学分野:
- 運動 生理学
- 人間 の 適応
- 温度調節
背景:
- 性別による温度調節の違いは知られている.
- これらの差異が熱慣性 (HA) に与える影響は完全に理解されていません.
研究 の 目的:
- 10日間の制御された作業速度での熱慣性プロトコルにおける生理学的反応の性別差を調査する.
- 男性と女性の熱への適応を評価する.
主な方法:
- 27人の健康な個体 (16人の女性) が10日間のHAプロトコルを受けた.
- 測定には,体温 (Tcore),心拍数 (HR),全身汗回数 (WBSR) が含まれていた.
- HSP72のレベルは,1日と10日の血液サンプルで評価された.
主要な成果:
- 男性も女性も順調に適応し,ピークTコアとHRの低下を示した.
- 3~5日間の男性ではより高かったが,全身の汗の頻度は両性において増加した.
- HSP72の濃度は,HA期間中,男性と女性で同様に増加した.
結論:
- オスとメスは,運動による10日間の熱への適応に類似した能力を発揮します.
- 暑さへの適応は,男性と女性の異なる生理学的経路を伴う可能性があります.
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