健康な若者を用いた予測モデルの批判的評価
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PubMedで要約を見る
まとめ
この要約は機械生成です。熱ストレス評価の現在の方法,例えばコア温度転換点 (CTIP) と生体物理モデルでは,長期にわたる熱被曝中にヒトの温度調節限界を過大評価しています. これらのモデルは,正確な熱リスク評価のために洗練する必要があります.
科学分野
- 人間の生理学
- 環境衛生
- 温度調節に関する研究
背景
- コア温度転換点 (CTIP) 方法と生体物理モデリングは,ヒトの温度調節限界を評価するための標準的なツールです.
- しかし,長期にわたる熱曝露下でのそれらの正確性は厳格に検証されていないため,熱ストレスの予測におけるそれらの信頼性について懸念が生じています.
研究 の 目的
- 室内の熱に長時間曝露されたCTIPと生体物理モデルの予測精度を評価する.
- 制御された環境条件下で,現在のモデルが人間の温度調節の限界と熱のリスクを正確に予測するかどうかを判断する.
主な方法
- 健康な成人の36人 (男性20人,女性16人) は,異なる温度と相対湿度で5回の8時間の熱試験を受けました.
- 参加者は標準的な服を着て静止状態で作業を行い,直腸の温度を継続的にモニタリングした (Trec).
- 環境条件は,ヒトの温度調節限界の以前のモデル予測に基づいていた.
主要な成果
- すべてのテストされた熱条件は補償可能で,直腸の温度上昇率は0.1°C/h以下で,ピーク温度は熱中症の値以下でした.
- モデルの予測に反して,ヒトの体温調節限界は達成されず,モデルの許容性が著しく過小評価されたことを示した.
- 女性では44°C/29. 2%RHでTrecが低かったが,他の症状では性による有意な安定状態の反応は観察されなかった.
結論
- CTIPと生体物理モデルはヒトの温度調節限界を大幅に過小評価し,熱のリスクを過大評価しています.
- 現在の予測方法は,長期にわたる熱曝露に対する人間の耐性を正確に評価するには,かなりの精細化が必要です.
- 熱のリスクの評価を改善し 温暖化が進む中で公衆衛生に関するガイドラインを 策定する上で 決定的な役割を果たします
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