This One Move Works Your Butt, Legs, AND Abs At The Same Time

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 leg curl: This move is basically a hip raise—but 1,000 times harder. Adding the stability ball to the mix brings your bod some major benefits. Curling it works your hamstrings like crazy, while your abs are pulling overtime to keep you stable and balanced.