Since boot-camp classes tend to mix short breaks into the workout, they're considered a form of high-intensity interval training (HIIT). According to Porcari, the average heart rate of someone during ...

Of all the styles of fitness classes, boot camp-style group workouts probably feel the most torturous. After all, that's their whole shtick! But according to scientific studies and experts consulted ...

Gym's founder says fitness gave him a second chance at life. As a New Yorker who enjoys a good workout, I’ve been to just about every group fitness studio you can think of, and I consider myself in ...