Firefighting is one of the most physically demanding occupations there is and requires above average aerobic and anaerobic power, muscular strength, endurance, and flexibility
Cardiopulmonary health is essential for emergency responders
Firefighting is an aerobically demanding occupation sometimes requiring a firefighter to work at or near maximal capacity for several minutes at a time. Due to the high physical demands of firefighting, successful job performance and minimization of injury depends largely on the fitness level of the firefighters. In addition, the combination of the high physical demands of the job, abrupt changes from rest to high intensities, a number of environmental and psychological stressors and use of protective garments contribute to the increased mortality from cardiovascular disease among firefighters