Physiological responses and parasympathetic reactivation in rescue interventions: The effect of the breathing apparatus

Scandinavian Journal of Medicine & Science in Sports
Philémon Marcel-MilletAlain Groslambert

Abstract

This study aimed to assess the effect of wearing a breathing apparatus during a simulated rescue intervention on psychophysiological responses and parasympathetic reactivation of firefighters. Thirty-four firefighters participated in this study which consisted of four experimental sessions conducted randomly: a maximal fitness test and three rescue interventions performed (a) with personal protective clothing (PPC); (b) with PPC and the full self-contained breathing apparatus (SCBA), including cylinder, full-face piece, and breathing regulator; and (c) with PPC and only the cylinder of the self-contained breathing apparatus (SCBAc). Physiological (heart rate [HR], breathing frequency [BF]) and perceptual (rating of perceived exertion [RPE]) responses were continuously collected during the three rescue interventions. Parasympathetic reactivation was assessed using HR recovery and variability indexes after experimental sessions. HR responses ranged between 63% and 95% of HRmax , and BF responses ranged between 22 and 55 breaths/min for the different activity tasks. Parasympathetic reactivation indexes were similar for the rescue interventions but lower than after the intermittent fitness test (P = 0.016 - P < 0.0001). Mean HR for...Continue Reading

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Citations

Jun 27, 2020·International Journal of Occupational Safety and Ergonomics : JOSE·Philémon Marcel-MilletAlain Groslambert
Feb 24, 2019·Sensors·Carlo MassaroniEmiliano Schena
Sep 18, 2020·Journal of Occupational and Environmental Medicine·Philémon Marcel-MilletGilles Ravier
May 14, 2021·Applied Ergonomics·Philémon Marcel-MilletGilles Ravier
Jun 30, 2021·Journal of Occupational and Environmental Medicine·Maxwell S NorrisMark G Abel
Oct 12, 2021·Annals of Work Exposures and Health·Rudi A MarciniakKyle T Ebersole

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