Place a cable pulley at chest-height and attach a single handle. Stand with the legs wider than shoulder-width apart so the pulley is to the right of the body, then reach across body and grip the handle with the left hand first then the right hand, lacing the fingers together with the arms out straight to the right. Start with the body centered on the right leg, then push the right foot into the ground to shift the weight of the body to the left leg while rotating the abs and chest, keeping arms straighten directly ahead during the movement.  Keep pushing off the right foot as the body shifts to the left hip and the arms and trunk twist as far to the left as possible. Then push off the left foot and slowly twist the arms across the body to return the hands to the starting position.