supine oblique crunch lifting legs with ball between feet while rotating torso to touch opposite elbow to knee.
Lie on the back with legs straight forward, place a swiss ball between the feet and hands behind the head. Squeeze the ball and elevate the legs towards ceiling, lift the head, shoulder off the floor and twist to one side, as trying to touch the elbow to opposite leg. Untwist and lower back to starting position and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.
