Exercises For Flat Abs (Views: 16955)

#20 "X-Abs" (Image 1 of 20)

Shape.com promotes this exercise because it targets EVERY ab muscle you have. Lie on your back with arms and legs extended so your body creates an 'X' shape. Inhaling and drawing your bellybutton to the ground, lift legs and hips up and over your head while bringing your upper body and arms up past them. Repeat 20 times.