There are over 800,000 volunteer firefighters in the United States that make up 70 percent of all firefighters. Volunteer firefighters may have long periods with little physical activity, interrupted by response calls that place very high demands on their cardiovascular fitness.

There’s no clear agreement on whether strength, aerobic or some combination of training is most beneficial to reducing cardiovascular risk. A 2012 study (abstract) did suggest that combination training was better for cardiovascular health than aerobic or strength training, but accurate measurements of improved cardiovascular health from exercise have until now not been made. Read More...