Electrocardiographic Responses Following Live-Fire Firefighting Drills

Objective: Firefighting-related environmental and physiological factors associated with cardiovascular strain may promote arrhythmias and myocardial ischemia, which induce sudden cardiac events (SCE) in susceptible individuals. The present study evaluated electrocardiographic (ECG) changes that may reflect increased SCE risk following simulated live-firefighting. Methods: Using a repeated measures design, ECG tracings from 32 firefighters were...