Barre classes are all the rage right now, but this particular method is based on a technique that's been around for more than 50 years. Every one-hour Bar Method class integrates the fat-burning format of interval training, the muscle-shaping technique of isometrics, the elongating principles of dance conditioning, and the science of physical therapy to create a workout that quickly and safely reshapes your entire body. There are more than 65 official Bar Method studios across the nation, and countless unofficial home studios equipped with one (or more) of the seven different Bar Method DVDs. Our fave is the Super Sculpting Workout ($20; barmethod.com).
What to expect: You'll definitely feel the burn in your thighs and butt after completing this super-targeted workout. The moves may seem subtle (one-inch lifts or squeezing a ball between your knees), but they deliver fast results.
You'll need: A pair of 2- to 4-pound dumbbells, yoga strap, small playground ball, and a sturdy chair.