Five different 11-minute ab sections, each one features a specific type of up-to-date exercise. No old-fashioned crunches, this program is a creative medley of functional fitness and total-core routines. The first segment is a well-sequenced ab "circuit". The second is a blend of Pilates and ballet exercises. That's followed by a core series that works every ab muscle, plus your back. The next section combines cardio intervals with ab toning (e.g. floor planks with side jumps). The program ends with a standingfloor segment that uses dumbbells to boost results. Throughout, Jessica Smith maintains a steady pace with no wasted time. Requires 3 to 5 lb. dumbbells.