Crunch - Decline
Using a decline bench, position yourself with your feet locked in at the top. Your upper body should be raised off the bench so that you have to contract your abs just to stay in place. Place your hands on each side of your head, over your heads. Don't lock your fingers! Raise your body slowly while you contract your abs. Crunch up until your elbows are on either side of your thighs. Hold and flex your abs, then slowly lower your body back to the starting position. Don't lower your body all the way down the to bench! If you can, hold a weight plate across your chest for added resistance.