在远程航空医疗疏散中佩戴防护服时生理参数和热舒适度的变化:一个前性的,非盲目的,两阶段交叉自控研究
Yadi Zhang1, Fan Jiang2,3, Zhenyao Song1
1Department of Disease Control and Prevention, Air Force Medical Center, Air Force Medical University, PLA, 30# Fucheng Road, Haidian District, Beijing, 100142, China.
Journal of physiological anthropology
|November 7, 2025
概括
穿着防护装备的医务人员应在低氧环境中工作120-200分钟. 这种持续时间可以确保工作效率,并最大限度地减少不良生理影响,包括SpO2异常和高热感度.
科学领域:
- 生理学 生理学 生理学
- 环境医学 环境医学
- 职业健康 职业健康 职业健康
背景情况:
- 在长时间的活动中,穿着防护服的医务人员的热生理反应至关重要.
- 了解低氧压 (LOP) 和正常氧压 (NOP) 下的这些反应对于运行安全至关重要.
研究的目的:
- 研究LOP与NOP对医疗人员热生理学特征的影响.
- 为了确定最佳的工作时间,在不同氧气条件下保持防护装备的效率和安全.
主要方法:
- 24名参与者在LOP和NOP环境中进行了6小时的实验周期 (坐着,走路,心肺复苏).
- 统计分析包括后勤回归,考克斯分析,限制立方线 (RCS) 和卡普兰-梅尔 (K-M) 方法.
- 关键的生理指标如温度,SpO2,脉冲压,热感投票 (TSV),气,以及感知劳动力 (RPE) 的评级都被监测.
主要成果:
- 120分钟被确定为最佳保护时间,在生理参数的显著跨组差异.
- 与NOP相比,LOP暴露导致SpO2异常,高TSV和高度的概率更高.
- RCS分析显示了时间效应,LOP组的RPE显示非线性增加,SpO2显示线性下降,两者都在200分钟左右达到拐点.
结论:
- 在LOP条件下,建议医务人员在防护服中使用120-200分钟的最佳工作时间.
- 这种持续时间是为了保持工作效率而没有损害生理安全而建议的.
- 研究结果强调了考虑氧气压力在规划工作时间表时对于在苛刻环境中工作的人员的重要性.
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