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Volume 11, Issue 2 (Iranian Journal of Ergonomics 2023)
Iran J Ergon 2023, 11(2): 90-100 |
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Research code: 140102201114
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Davoodizadeh A, Aliabadi M, Habibi Mohraz M, Farhadian M, Shafiee Motlagh M. Performance of Vests based on Nanofibers and Packages of Phase Change Materials to Reduce Thermal Stress in a Hot Work Environment: An Experimental Study. Iran J Ergon 2023; 11 (2) :90-100
URL: http://journal.iehfs.ir/article-1-967-en.html
URL: http://journal.iehfs.ir/article-1-967-en.html
Ali Davoodizadeh1 
, Mohsen Aliabadi *2 , Majid Habibi Mohraz3 , Maryam Farhadian4 , Masoud Shafiee Motlagh3
, Mohsen Aliabadi *2 , Majid Habibi Mohraz3 , Maryam Farhadian4 , Masoud Shafiee Motlagh3
1- Department of Occupational Health Engineering, Occupational Health and Safety Research Center, School of Public Health, Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
2- Center of Excellence for Occupational Health Engineering, Occupational Health and Safety Research Center, Hamadan University of Medical Sciences, Hamadan, Iran ,mohsen.aliabadi@umsha.ac.ir
3- Center of Excellence for Occupational Health Engineering, Occupational Health and Safety Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
4- Department of Biostatistics, School of Public Health, Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
2- Center of Excellence for Occupational Health Engineering, Occupational Health and Safety Research Center, Hamadan University of Medical Sciences, Hamadan, Iran ,
3- Center of Excellence for Occupational Health Engineering, Occupational Health and Safety Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
4- Department of Biostatistics, School of Public Health, Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
Abstract: (1559 Views)
Objectives: This study aimed to investigate the effectiveness of cooling vests based on nanofibers and packages of phase change materials (PCM) in reducing the thermal stress of medical personnel in hot workplaces.
Methods: In this experimental study, 20 males were exposed to 10 combined scenarios of temperatures of 24°C and 32°C in a room simulating atmospheric conditions and having 5 samples of cooling vests. Physiological parameters, including skin surface temperature, tympanic temperature, and oral temperature were measured before and after exposure to air temperature conditions by simulating the activity metabolism of hospital workers. The normal distribution of the data was checked with the Kolmogorov-Smirnov test, and the analysis of the effect of the scenarios was performed through the analysis of variance with repeated measurements.
Results: The results confirmed that in the condition without a vest, the air temperature of 32°C compared to the air temperature of 24°C had a greater effect in increasing the tympanic body temperature (P<0.05). The significant effect of using nanofiber vests along with PCM packages was observed in reducing skin temperature, tympanic temperature, and oral temperature in hot temperature conditions with effect sizes of 0.498, 0.568, and 0.349, respectively (P<0.05). The effect size of increasing the air temperature was lower than that of the type of cooling vests on the physiological responses, indicating that the effectiveness of the designed vests is enhanced with an increase in temperature (P<0.05).
Conclusion: The use of nanofiber cooling vests and PCM packages is effective in maintaining the body temperature stability of medical personnel in hot environments due to ideal weight and acceptable effect size.
Methods: In this experimental study, 20 males were exposed to 10 combined scenarios of temperatures of 24°C and 32°C in a room simulating atmospheric conditions and having 5 samples of cooling vests. Physiological parameters, including skin surface temperature, tympanic temperature, and oral temperature were measured before and after exposure to air temperature conditions by simulating the activity metabolism of hospital workers. The normal distribution of the data was checked with the Kolmogorov-Smirnov test, and the analysis of the effect of the scenarios was performed through the analysis of variance with repeated measurements.
Results: The results confirmed that in the condition without a vest, the air temperature of 32°C compared to the air temperature of 24°C had a greater effect in increasing the tympanic body temperature (P<0.05). The significant effect of using nanofiber vests along with PCM packages was observed in reducing skin temperature, tympanic temperature, and oral temperature in hot temperature conditions with effect sizes of 0.498, 0.568, and 0.349, respectively (P<0.05). The effect size of increasing the air temperature was lower than that of the type of cooling vests on the physiological responses, indicating that the effectiveness of the designed vests is enhanced with an increase in temperature (P<0.05).
Conclusion: The use of nanofiber cooling vests and PCM packages is effective in maintaining the body temperature stability of medical personnel in hot environments due to ideal weight and acceptable effect size.
Type of Study: Research |
Subject:
Environmental Ergonomics
Received: 2023/08/19 | Accepted: 2023/09/17 | ePublished: 2023/09/17
Received: 2023/08/19 | Accepted: 2023/09/17 | ePublished: 2023/09/17
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