
seated trunk rotation exercise with ball squeeze between knees while maintaining elevated arms at shoulder height
Sit with knees bend and foot on the floor, place a swiss ball between the knees and arms elevated to 90 degrees by the side. Press the ball between knees and twist the trunk to one direction with arm moving in same direction. Untwist to starting position and repeat alternative sides.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.