If you’ve ever wondered what a gym-based boot camp would be like without a “drill sergeant” screaming in your face, an hour in the 24 S.E.T. class at 24 Hour Fitness will paint a picture for you. But ...

LAGUNA NIGUEL, Calif. (KABC) -- These people are talking about a new class called FIRE. "It's such a great, explosive workout. You get everything fit in an hour," said Melanie Reed of Laguna Niguel.

Shred415 was founded by Chicago fitness experts Bonnie Micheli and Tracy Roemer in 2011. Frustrated with the lack of effective fitness options for busy parents and professionals, they set out to ...

What Is It: Speedplay is a 60-minute high-intensity interval training class that combines running, rowing and floor exercises to burn up to 900 calories per session. Who Tried It: Gabrielle Olya, ...