Acute Physiological Response of Live-Fire Simulation Activities Affecting Cardiovascular Health in Live-Fire Instructors: A Randomized Controlled Simulation Study

This study aimed to assess acute physiological response of fire suppression simulation affecting cardiovascular health during repeated bouts of simulation. Methods: Fifteen live-fire instructors were randomly divided into three groups according to fire suppression simulation frequency. Vital signs, biomarkers, and heart rate variability (HRV) were measured before and after simulation. Results: Vital signs increased immediately after fire simulation and returned to the normal range after 2 h. Most biomarker levels were changed within the normal ranges 72 h after the simulation training. However, one of the HRV frequency domains, high frequency power, was severely suppressed after 1 h and tended to recover after 2 h of simulation (P 
Source: Journal of Occupational and Environmental Medicine - Category: Occupational Health Tags: ORIGINAL ARTICLES Source Type: research