Check out Women's Health's FitGIF Friday every week for fun and challenging new moves to make your sweat sesh really count. Here's this week's exercise:
Stability ball pike: This move will put your core strength and balance to the test. Though it may look easy enough, the stability ball pike offers a challenging total-body workout for your arms, shoulders, core, and lower back.
(Get more total-body workouts from Women's Health's Look Better Naked DVD.)
