Denise Austin has been inspiring women to get fit and have fun for four decades. As one of the key figures of the '80s aerobics boom, she knows a thing or two about fitness trends and which exercises ...

While talking to my coworker about my Shape Up series, I mentioned I wanted to take a dance class. She swore by Grit Fitness’ step aerobics class, so I signed up for an evening session. I was pumped.

It takes three seconds to glean this particular exercise video is about much more than pumping iron. The music starts blaring, the pretty women start clapping, the Chippendales start dancing.

Working out is the best way to get fit and feel healthy. For decades, people have been trying out different workout routines and fitness trends to see what feels the best for their bodies. That’s also ...