戴消防个人防护装备运动后手腕冷却对热应激恢复的影响。
Effects of Wrist Cooling on Recovery From Exercise-Induced Heat Stress With Firefighting Personal Protective Equipment.
机构信息
Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, New York.
出版信息
J Occup Environ Med. 2018 Nov;60(11):1049-0. doi: 10.1097/JOM.0000000000001436.
OBJECTIVE
To determine the effects of wrist cooling on recovery from exercise-induced heat stress (EIHS) from wearing firefighting personal protective equipment (PPE) and self-contained breathing apparatus.
METHODS
Using a single-blind, counterbalanced, crossover-design, in 11 healthy men, we measured heart rate (HR), HR variability (HRV), core temperature (TCore), thermal strain (TS), and fatigue at rest, during 30-minute of exercise in PPE+SCBA, and during recovery while wearing a wrist cooling band (control[off] vs cool[on]).
RESULTS
No differences were observed between trials at baseline or during exercise, in HR, TCore, TS, or fatigue. Time to 50% and recovery were not different between trials. Upon recovery, TCore was lower, while HR, fatigue, HRV, and TS were relatively indifferent with cooling.
CONCLUSION
Wrist cooling after EIHS only modestly enhanced recovery, questioning its implementation during on-scene rehabilitation of firefighters.
目的
确定佩戴消防个人防护装备和自给式呼吸器进行运动诱导热应激（EIHS）后，手腕冷却对恢复的影响。
方法
采用单盲、交叉设计，在 11 名健康男性中，我们测量了心率（HR）、心率变异性（HRV）、核心温度（TCore）、热应激（TS）和休息时的疲劳，在穿着 PPE+SCBA 进行 30 分钟的运动期间，以及在佩戴手腕冷却带（对照[关]与冷却[开]）进行恢复期间。
结果
在基线或运动期间，试验之间在 HR、TCore、TS 或疲劳方面没有差异。试验之间的达到 50%和恢复时间没有差异。恢复时，TCore 较低，而 HR、疲劳、HRV 和 TS 相对不变。
结论
EIHS 后手腕冷却仅适度促进恢复，质疑其在现场消防员康复期间的实施。
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