High-intensity interval training, or HIIT, is a great way to torch calories, boost your metabolism and get a great workout in a shorter amount of time. And if you're a fan of hopping on the treadmill ...

Think of high-intensity interval training (HIIT) like baking: You need a precise amount of time in the oven along with a cooling-down period. In workout terms, that means balancing intervals of more ...

Steady-state cardio is better for people with certain health conditions and is easier to maintain long-term. HIIT should generally be done no more than two to three times per week with recovery days ...

The fitness boot camp craze is evolving. It's no longer just the crack-of-dawn, sergeant-led calisthenics classes. Mommy Bootie Camp in Kensington, Md., packs a lot of punch, with a focus on interval ...