熱適応のためのオーバードレッシングによる運動:生体物理モデルと2つのランダム化クロスオーバー試験を用いた多層アプローチ
Andrew M Greenfield1, Shaun C Brazelton1,2, Billie K Alba1
1Thermal and Mountain Medicine Division, U.S. Army Research Institute of Environmental Medicine, Natick, MA, USA.
Journal of applied physiology (Bethesda, Md. : 1985)
|September 5, 2025
まとめ
オーバードレッシングのプロトコルによる実用的な練習により,暑い天候でも慣れることができます. この方法は,軍人やアスリートなどの個人の熱耐性を効果的に改善します.
科学分野:
- 環境生理学
- 運動科学
- 温度調節
背景:
- 急速な気候変動は 軍人やスポーツ選手にとって 熱ストレスという課題を生み出しています
- 熱い環境にアクセスできない人にとって 有効な熱への適応戦略が必要です
研究 の 目的:
- 暑さに慣れるためのオーバードレッシングを使った実用的な運動プロトコルを開発し,検証する.
- 熱に対する生理学的適応を誘発するこのプロトコルの有効性を評価する.
主な方法:
- 生物学的モデリングにより,最適な運動 (トレッドミール) と過剰着用のパラメータが特定されました.
- 健常な男性と女性の2つのランダム化クロスオーバー試験では,新しいプロトコルと対照運動を比較した.
- 熱ストレステストは5日間の介入期間前後に行われました.
主要な成果:
- 身体の温度と心拍数が 劇的に上昇しました
- このプロトコルの5日間は 休憩とピークの心臓の温度,皮膚の温度,熱ストレス時の心拍数を 大幅に低下させた.
- オーバードレッシングによる運動による適応は,対照運動よりも優れていた.
結論:
- オーバードレッシングプロトコルによる実用的な練習は,温帯環境での熱慣習を効果的に誘導します.
- このアプローチは,暑い天候にさらされずに熱の適応を必要とする個人に有効な解決策を提供します.
- この発見は 軍人やスポーツ選手を 暑い気候に備えるための意味合いがあります
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