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首页> 外文期刊>Ergonomics >Effect of wearing personal protective clothing and self-contained breathing apparatus on heart rate, temperature and oxygen consumption during stepping exercise and live fire training exercises
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Effect of wearing personal protective clothing and self-contained breathing apparatus on heart rate, temperature and oxygen consumption during stepping exercise and live fire training exercises

机译：穿着个人防护服和自给式呼吸器对踩踏运动和现场火力训练锻炼期间的心率，温度和氧气消耗的影响

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摘要

Fire fighter breathing apparatus instructors (BAIs) must possess the ability to respond to both the extrinsic stress of a high temperature environment and the intrinsic stress from wearing personal protective equipment (PPE) and self-contained breathing apparatus (SCBA), repeatedly and regularly, whilst training recruits in live fire training exercises (LFTEs). There are few previous investigations on BAIs in hot environments such as LFTEs, since the main research focus has been on regular fire fighters undertaking exercises in temperate or fire conditions at a moderate to high exercise intensity. In this study, the intrinsic cardiovascular stress effects of wearing PPE + SCBA were first investigated using a step test whilst wearing gym kit (control), weighted gym kit (a rucksack weighted to the equivalent of PPE + SCBA) and full PPE + SCBA (weight plus the effects of protective clothing). The extrinsic effects of the very hot environment were investigated in BIAs in LFTEs compared to mock fire training exercises (MFTEs), where the fire was not ignited. There was an increase in heart rate due to the modest workload imposed on the BAIs through carrying out the MFTEs (25.0 (18.7)%) compared to resting. However, when exposed to fire during the LFTEs, heat storage appears to be significant as the heart rate increased by up to 39.8 ( ± 20.1)% over that of the mock LFTEs at temperate conditions. Thus, being able to dissipate heat from the PPE is particularly important in reducing the cardiovascular responses for BAIs during LFTEs.
机译：消防员呼吸器教官（BAI）必须具有能力，能够反复且定期地应对高温环境的外在压力以及穿戴个人防护设备（PPE）和自给式呼吸器（SCBA）产生的内在压力，同时训练新兵进行实弹射击训练（LFTE）。以前很少有针对诸如LFTE之类的炎热环境中的BAI的研究，因为主要的研究重点是常规的消防员在中度至高强度的锻炼中在温带或着火条件下进行锻炼。在这项研究中，首先通过逐步测试研究了穿着PPE + SCBA的内在心血管压力影响，同时穿着健身套件（对照），加权健身套件（重量相当于PPE + SCBA的帆布背包）和完整的PPE + SCBA（重量加上防护服的效果）。与不点燃火的模拟火力训练练习（MFTE）相比，在LFTE中的BIA中研究了高温环境的外部影响。与静息相比，由于通过进行MFTE对BAI施加的工作量较小，导致心率增加（25.0（18.7）％）。但是，当在LFTE期间暴露于火中时，蓄热似乎很重要，因为在温带条件下，心率比模拟LFTE上升了39.8（±20.1）％。因此，能够消散PPE的热量对于减少LFTE期间BAI的心血管反应特别重要。

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