Effect of a Simulated Mine Rescue on Physiological Variables and Heat Strain of Mine Rescue Workers.

Autor:	Konrad J; Centre for Research in Occupational Safety and Health (Mr Konrad, Dr Gagnon, Dr Serresse, Mr Leduc, Dr Dorman); School of Human Kinetics, Laurentian University (Mr Konrad, Dr Gagnon, Dr Serresse, Dr Oddson, Dr Dorman), Sudbury, Ontario, Canada., Gagnon D, Serresse O, Oddson B, Leduc C, Dorman SC
Jazyk:	angličtina
Zdroj:	Journal of occupational and environmental medicine [J Occup Environ Med] 2019 Mar; Vol. 61 (3), pp. 251-261.
DOI:	10.1097/JOM.0000000000001530
Abstrakt:	Objective: To describe physiological responses of mine rescuers during a simulated mine emergency. Methods: Body-worn monitors (n = 74) and core temperature (Tc) capsules (n = 54) assessed heart rate (HR), respiration rate (RR), energy expenditure (EE), oxygen consumption ((Equation is included in full-text article.)), Tc and skin temperature (Tskin), by team position and task. A multivariate analysis was performed with team positions, tasks, and measures as factors. Results: HRmean and HRpeak were 78.6% and 94.5%, respectively, of predicted maximum heart rate. Arduous labor tasks elicited higher HR, RR, and (Equation is included in full-text article.)than casualty care. Captains exhibited lower HRmean, HRpeak, RR, RRpeak, (Equation is included in full-text article.), Tc, and Tskin compared with other positions. Tc mean exceeded 38.6 °C (n = 14 recorded Tc >39 °C). Conclusions: Captains' physical loading and heat stress were lowest. Nonetheless, all tasks and positions induced high physical load and heat strain.
Databáze:	MEDLINE
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