lie prone on ball, push with forearms while arching back and looking up, then return to neutral and repeat
Lie on the ball such that, stomach and hands resting on the ball and toes on the floor. Push the ball with forearm and look tpwards the ceiling, arching the back. Feel for the stretch in front of chest and stomach, bend forward the trunk and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.
