“You guys are all insane in the best way!” Justin Goldman, a personal trainer and group fitness instructor at Equinox in New York City, hollers at a studio full of sweaty students, one of whom is me.

Add Yahoo as a preferred source to see more of our stories on Google. Women spend more time in group fitness classes than men do. Why working out with others is good for you. (Getty Creative) (Thomas ...

Most of us know the basics about Equinox: the gym chain, which has over 100 locations across the US, is famous for its luxe amenities including steam rooms, spas, eco-conscious products from Grown ...

More and more guys are embracing group fitness. Why? Because group classes deliver science-backed muscle-building and cardio-enhancing tactics. Not sure how to get the most out of the new group ...