Prone ABC's

Kneeling facing a stability ball, lean the chest forward at a 45 degree angle and rest both elbows on the top of the ball directly under the shoulders. Keeping the stomach muscles squeezed and body supported off the ball, raise the knees off the ground. With the body in a straight line from head to feet, move the ball around with the elbows to draw the letters of the alphabet. Maintain a straight line from head to feet.