For a prone forward jack knife roll yourself onto a stability ball, using your hands for balancing roll till the point when only your feet are on the ball, your feet should be place together. Keep a tall torso and elbows locked in. Next, bring in your knees to the right side; pressing your abs and pelvis; and twisting your torso; back to the starting position. Do the same to the left and then back and to the right. Repeat this procedure at least 10 times for a power packed session of a jack knife twist.
stability, ball, forward, jack, knife, Jack, Exercise, On, Stability, ball, Jack, Knife, Twist