Watch free exercise videos with ab exercises from the Get a Flat Belly in 6 Weeks ab workout plan at FitnessMagazine.com.
-Butterfly Crunch: Lie down with the soles of your feet together and pull them towards your body. Put your hands behind your head. Now, exhale and curl your chest a few inches up off the floor, lower back down. Crunch up again for 10 reps. Be sure to keep your lower back flat on the floor and your