Good Ab workout
This works for me. Lay on your back and begin to crunch up then bring your legs up to a 90 degree position, hold them there while you do 50 slow pulsing crunches, then drop them to a 60degree position and do 50 more crunches, then drop them to 30 degrees and do 50 more crunches. If you havent quit by now and want to kick it up a notch hold your legs at 10 inches for about a minute. This is a great ab workout for me, just remember to stretch out your back though.