Lower Ab exercises?

[xlxBigSexyxlx]

how do do you do a reverse crunch?

Lay on your back with your legs up in the air, and bent at the knees, forming a 90 degree angle with your legs. Bring your knees to your elbows, lifting your lower back and buttocks off the ground. Keep your upper body still.

[importeater91]

Lay on your back with your legs up in the air, and bent at the knees, forming a 90 degree angle with your legs. Bring your knees to your elbows, lifting your lower back and buttocks off the ground. Keep your upper body still.

so you just keep bringing them up and down like a crunch? i gotta try this, i have the same problem