Wall-Up

The Wall-Up exercise works your abs and obliques.

-Absolutely Fabulous. Wall-Up: First, do 10 crunches straight up. Next, extend your right arm by [unk] out to the side and crunched up, rotating to the left as you bring your right arm to the outside of your left knee. You're going to do 10 reps and then switch sides and repeat with your left arm.