Now I am going to demonstrate how to do Swiss Oblique Crunch on a exercise ball, Okay. So what I am going to do is back flat on the ball, hands behind the head or you can even bring your hands in front if you feel more comfortable with balance that way, its a little bit easier on the balance, I'm gonna execute it with hands behind my head, okay and I am gonna push down into the ball so it rolls with me as I twist, okay I am going to repeat opposite side. And notice I just turn my elbows slightly to my obliques. Keep that chin high so you are not straining the neck. Okay, so you are keep going, do repetitions till you feel your obliques working. Make sure you keep the lower back down, you are not arching that back. Keep that spine nice and flat inside the ball. Okay, that is the proper way to do a Swiss Oblique crunch on a Exercise Ball.