RIPPED Fitness, a New York City boutique fitness newcomer, is serving up 50-minute HIIT classes without the intimidation factor—and you can try it for free. RIPPED Fitness, the latest arrival on New ...

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 ...

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 ...

The other day, I was picking up my youngest son from his summer camp. When I walked in, all the kids were spinning around with hula hoops burning a little energy before the parents showed up. It got ...