these crunches are a motherfucker:
you... again....lie on your back and hold this medicine ball out over your head, while keeping your feet 6 inches up off the ground...
then crunch up, and bring the ball over your head ro meet your knee:
if you're a flexible showoff like
someone i know
you can keep that lifting leg straight the whole time
yeah...7 or 8 of those one each side X 3 sets will fix your ass right up.