Physiological responses and performance of loading work in a severely cold environment
Physiological responses and performance of loading work in a severely cold environment
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DOI：
10.1016/j.ergon.2007.05.009
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发表时间：
2007-09-01
影响因子：
3.1
通讯作者：
Hashiguchi, N.
中科院分区：
文献类型：
--
作者：
Kim, T. G.;Tochihara, Y.;Hashiguchi, N.
在严寒环境中进行人体生理反应和手动操作测试。8名穿着标准防寒服（3.4 Clo）的男学生占据20 ℃的房间20分钟，然后被转移到极冷的房间（-25 ℃）30分钟。这种暴露模式重复三次，暴露于极冷的总时间为90分钟。在冷藏室中，受试者搬运9 kg货物（条件R1）和18 kg货物（条件R2）10 min，不做任何工作（条件C），在冷暴露结束时，条件R2和R1的直肠温度、平均皮肤温度和平均体温均高于条件C。当受试者注意到负荷工作时“冷感减少”时，由于工作期间产热增加，冷应激下降。此外，血浆中去甲肾上腺素水平的增加随着工作量的增加而受到抑制。相反，手指皮肤温度没有变化。此外，手工工作的精度下降，作为负载的重量increased.Relevance到industryThe的结果是相关的所有行业涉及的性能手动装载工作在冷藏环境。由于工作场所的生产率、安全性和效率与工人的表现直接相关，因此必须考虑寒冷暴露和不同的工作负荷如何影响工人的生理反应。(C)2007 Elsevier B. V.保留所有权利。
Human physiological responses and manual performance were measured during loading work in a severely cold environment. Eight male students wearing standard cold-protective clothing (3.4 Clo) occupied a 20 degrees C room for 20 min, and were then transferred to an extremely cold room (-25 degrees C) for 30 min. This pattern of exposure was repeated three times, for a total time of exposure to extreme cold of 90min. In the cold room, the subjects transported 9 kg goods (Condition R1) and 18 kg goods (Condition R2) for 10 min, and performed no work (Condition C).At the end of the cold exposure rectal, mean skin and mean body temperatures in Conditions R2 and R1 were higher than in Condition C. Cold stress declined due to an increase in heat production during work as observed when the subjects noted 'less cold sensation' with loading work. Furthermore, increase in noradrenalin level in plasma was depressed according to the increase in work. On the contrary, finger skin temperature did not change. Moreover, the precision of manual work decreased as the weight of the load increased.Relevance to industryThe results of this study are pertinent to all industries involving performance of manual loading work in cold storage environments. Since productivity, safety and efficiency in the workplace are directly related to the worker's performance, it is important to consider how cold exposure and varying work loads affect the worker's physiologic response. (C) 2007 Elsevier B.V. All rights reserved.