Sometimes in life, you really can't beat the old stuff. Old friends, old tunes, old movies - we love them all. And when it comes to working out, it seems we're partial to going retro too: indoor step ...

This group fitness class combines elements of strength, cardio, and dance to deliver a fun total-body workout. This remix-style video features all of your favorite instructors, including Raneir ...

High-intensity interval training, or HIIT, is a great way to get in a fast, effective workout. This quick routine is helpful ...