New and Challenging Crunches...

Ball Crunch:  Works abs and inner thighs.  Lie face up with your back on your stability ball.  Hold a weighted ball (I use my six pound medicine ball) between your knees, and place your feet hip-width apart on the floor.  Clasp your hands behind your head.  Crunch up lifting your upper back off the ball.  Return to starting position.  Remember to use your upper body and abs to lift up off the stability ball!