对结构性消防员空气消耗效率的评估
Emily L Langford1, Haley C Bergstrom, Sarah N Lanham
1From the Waters College of Health Professions, Georgia Southern University, Statesboro, Georgia (E.L.L.); First Responder Research Laboratory, University of Kentucky, Lexington, Kentucky (E.L.L., S.N.L., A.Q.E., M.G.A.); Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky (E.L.L., H.C.B., S.N.L., A.Q.E., S.B., M.G.A.); Neurotrauma Research Laboratory, Department of Veteran's Affairs, Minneapolis, Minnesota (A.Q.E.); and Department of Educational, School, and Counseling Psychology, University of Kentucky, Lexington, Kentucky (X.M.).
消防员的空气消耗效率 (ACE) 差异很大,较高的内部应力导致较差的ACE. 提高代谢耐受性可以改善呼吸器的功能持续时间,以提高消防员的安全性和生产力.
科学领域:
- 职业生理学 职业生理学
- 消防员安全研究研究
背景情况:
- 消防员的表现在很大程度上依赖于有效使用自闭式呼吸器 (SCBA).
- 空气消耗 (AC) 的变化可能会影响运行时间和安全.
研究的目的:
- 以标准化速度检查消防员 (FF) 的交流变化.
- 评估空气消耗效率 (ACE) 与工作经济之间的关系.
- 确定与ACE相关的参数及其与自律工作的关系.
主要方法:
- FF使用SCBA与气体分析仪以标准化和自选步伐进行随机的交流演练.
- 收集了生理学和人类学数据.
主要成果:
- 平均交流变化大约是汽使用的3.1分钟 (13.7%).
- AC显示与劳动经济以及各种生理/人类学因素的积极关联.
- 在ACE和自动节奏钻孔性能之间没有观察到显著的关系.
结论:
- 在FF中更高的内部应变与降低的ACE有关.
- 改善代谢耐受性的干预措施可以提高SCBA功能持续时间,提高FF生产力和安全性.
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