If you do Pilates, try barre.
Small, isometric movements inspired by ballet and yoga postures promise full-body strengthening. "If you can hold on to a ballet barre, you can do the workout," explains Pure Barre co-owner Tiffany Trent. purebarre.com
If you do CrossFit, try Tabata.
You might recognize this high-intensity interval regime from popular video workouts such as Insanity. "Studies have shown four-minute Tabata workouts equal a 60-minute endurance workout," says Melissa Albers, coordinator of fitness and wellness at Cleveland State University's recreation center. csuohio.edu/services/recreationcenter
If you yoga, try qigong.
This Chinese martial art focuses on deep rhythmic breathing and meditative postures. "It complements a lot of other exercise routines, and the exercises are very gentle and slow-moving," says One to One qigong instructor Steve Zimcosky. case.edu/onetoone