FROM START TO FINISH, this energizing program will quickly and efficiently whittle your middle. Youll get your best abs ever by combining cardio and strength training into one effective workout. Start with a circuit-based cardio routine to burn calories and flatten your midsection. Finish with a 5-minute ab blast to firm, tone and shape your best abs ever.

Cardio Workout This circuit-style, mixed-impact workout takes the full-body approach to training. Each circuit combines five minutes of innovative, easy-to-follow aerobics with two minutes of targeted exercise. Youll sculpt and tone all of your muscles with dumbbell exercises from the pages of SHAPE. Ab Workouts SHAPEYour abs provides 4 innovative workouts, each using SHAPES best ab exercises to sculpt and tone your torso. The 5-minute routines all have a unique training style -- from classic crunches to Pilates inspired movements. Rotate all 4, and work your abs differently each day guaranteeing optimal results.

BONUS: 12-minute total body blitz Dont have time to do the complete workout? This will hit your entire body in 12 minutes flat.