Developed by fitness industry veterans Elizabeth Halfpapp and Fred Devito, the legendary Core Fusion classes are offered at Exhale Spas across the country. If you're not lucky enough to live near an Exhale location, their trademark DVDs (starting at $14.99; exhalespa.com) are the next best thing for staying in top form.
What to expect: A set of 10- to 15-minute workouts that completely exhaust your muscles with plenty of pulses, plies, and core exercises. You can choose from a variety of titles, including Body Sculpt, Pure Abs and Arms, and Thighs and Glutes.
You'll need: It depends on the DVD, but common equipment includes small hand weights, resistance bands, a playground ball, and a mat.