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Effect of a simulated mine rescue on physiological variables and heat strain of mine rescue workers

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • Justin Konrad
  • Dominique Gagnon
  • Olivier Serresse
  • Bruce Oddson
  • Caleb Leduc
  • Sandra Dorman
<mark>Journal publication date</mark>1/03/2019
<mark>Journal</mark>Journal of occupational and environmental medicine
Issue number3
Number of pages11
Pages (from-to)251-261
Publication StatusPublished
<mark>Original language</mark>English


Objective: To describe physiological responses of mine rescuers during a simulated mine emergency. Methods: Body-worn monitors (n ¼ 74) and core temperature (Tc) capsules (n ¼ 54) assessed heart rate (HR), respiration rate (RR), energy expenditure (EE), oxygen consumption (VO˙ 2), Tc and skin temperature (Tskin), by team position and task. A multivariate analysis was performed with team positions, tasks, and measures as factors. Results: HRHRmean and HRpeak were 78.6% and 94.5%, respectively, of predicted maximum heart rate. Arduous labor tasks elicited higher HR, RR, and VO˙ 2 mean than casualty care. Captains exhibited lower HRmean, HRpeak, RR, RRpeak, VO˙ 2 mean, Tc, and Tskin compared with other positions. Tc mean exceeded 38.6 8C (n ¼ 14 recorded Tc >39 8C). Conclusions: Captains’ physical loading and heat stress were lowest. Nonetheless, all tasks and positions induced high physical load and heat strain.