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| Assessment of Physiological Load of Workers in a High Temperature Airtight Cabin |
| WANG Jing, MA Qiang, WANG Jingfeng, ZHAO Xiaoling, LI Chao, NIU Chao, |
| Institute of Health and Environmental Medicine, Academy of Military Medical Science, Tianjin, 300050, China |
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Abstract Objective To assessment the environmental characteristics of the high temperature airtight chamber and its effects on the physiological load of the workers, so as to provide the basis for intervention development for health and performance.Methods Environmental heat stress of three airtight chambers (A, B, C) was measured using the portable QUES Temp 36 thermal environment monitor. Eight workers in each chamber were selected, and their physiological states, workloads were monitored and evaluated using the heart rate meter, thermometer and fatigue degree questionnaire.Result The chamber A is the normal temperature chamber, in which the wet bulb globe temperature index(WBGT) is 22.72±1.85℃. The chamber B is the high temperature chamber in which the WBGT is 28.86±3.93℃. The chamber C is the extreme thermal chamber in which the WBGT is up to 36.50±1.39℃. For the workers in all the three chambers, the physical work intensity was at the light degree, and the fatigue was at the moderate degree. The physiological strain index (PSI) of the workers in chamber B was 2.38±0.81, which was significantly higher than that in the normal one (P<0.05).Workers' body surface temperature, core temperature and PSI in chamber C were 37.35±0.98℃,38.93±0.95℃ and 4.96±1.24 respectively, which all exceeded the tolerance limitation.Conclusion The physiological load of workers in high temperature chamber is high, which shows that the higher the ambient heat intensity is, the greater the effect of physiological load is. It is important to pay more attention for the workers in high temperature chamber to prevent from heat damage.
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Published: 01 September 2016
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WANG Jing, LI Chao, WANG Jingfeng, ZHAO Xiaoling, NIU Chao, WANG Tao, LIU Ying, WANG Shang, WANG Xinxing, MA Qiang. Assessment of Performance of Workers in a High Temperature Airtight Chamber[J]. Journal of Preventive Medicine of Chinese People's Liberation Army, 2016, 34(3): 312-313. |
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2016, Vol. 34 
