lie supine, feet on ball at 90-90, raise arms overhead while extending knees to roll ball away, return.
Lie on the back with arms by the side and feet on ball, hips-knees at 90-90 degrees bend. Elevate both arms overhead and roll the ball away from the body by straightening the knees. bring the ball and arms back to starting position and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.
