降落员调度员多次暴露在高海拔地区的压缩减压疾病风险
Aerospace medicine and human performance
|August 17, 2023
概括
军用降落员调度员在25000英尺处面临高压缩疾病 (DCS) 的风险.在值班期间,重复升至22000英尺可能是安全的,但需要短暂的地面休息.
科学领域:
- 航空航天医学 航空航天医学
- 生理学 生理学 生理学
- 职业健康 职业健康 职业健康
背景情况:
- 在高海拔地区的军事降落员调度员中发生的严重减压疾病 (DCS) 事件需要审查安全指南.
- 以前的暴露限值可能无法充分解决与极高海拔地区调度员职责相关的风险.
研究的目的:
- 调查执行高空降落作业的调度员对DCS的剩余风险.
- 为了探索在单个职位期间进行多次暴露的可行性,而不会影响安全.
主要方法:
- 十五名健康的男性 (年龄在20-50岁) 接受了两次重复的低压减压概况,模拟调度员任务.
- 个人资料包括60-90分钟的25,000英尺和90分钟的22,000英尺的上升,在15,000英尺的脱和暴露之间1小时的地面休息.
主要成果:
- 五例四肢疼痛DCS发生在25000英尺的高度,最初在29分钟开始. 还注意到轻微的关节不适 ("").
- 在22,000英尺处没有观察到DCS或显著的尼格尔.
- 泡负载更重,更早在25000英尺,特别是在老年人身上,而在22000英尺的重复暴露导致更轻,更晚的泡负载.
结论:
- 降落调度员由于高强度的运动水平,在25000英尺处面临着显著的DCS风险.
- 如果地面突破时间短,在工作期间内重复爬升至22000英尺似乎是可行的.
- 年长的调度员使用右向左的分流,在高海拔地区面临微气泡动脉化的风险增加.
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