Jillian Michaels: 6 Week Six-Pack Workout- Level 1 is a high intensity fat-blasting abdominal workout that employs a sure-fire combination of core-focused cardio circuits and ab-toning exercises that target multiple muscle groups simultaneously to boost t
Move of the Day: Leg Drop! This stability ball move works your abs better than crunches. The Leg Drop works your rectus abdominis (the paired muscle that gives you a stellar six pack!) as well as the lower abs.