· Lie one side of your torso, and with your waist and hip against a Stability Ball, position your feet on the floor (or against a wall) for support.
· With one hand, hold a weight against the side of your head.
· Place your free hand across your chest to steady yourself.
· Raise your torso up off the ball by flexing your waist.
· With controlled movements lower yourself back onto the ball.
Download Gym Hero to start this plan