"Club Cardio" is a unique workout that blends hip-hop and step aerobics. The class has gone viral with millions of views on social media, and gained celebrity fans like Ciara. Michelle Miller has more ...

There’s a scene in an early episode of Friends when Monica takes a tap class and finds herself in the back row, unable to keep up and making a fool of herself—and kind of loving it. Trade the tap ...

"Go, go, go! OK, switch," said Michele Krause, as a group of tennis and fitness professionals - plus one reporter - went through the paces of Cardio Tennis recently at the Natick Racquet Club. Cardio ...

I could have hung out on that Reformer all day. Lying on a sliding carriage with my feet on a platform and leaping for 30 seconds or a minute at a time against gentle, spring-loaded resistance, I felt ...