isometric shoulder internal rotation at 90° abduction with manual resistance from opposite hand
Stand, elevate the arm to 90 degree by the side, bend the elbow to 90 such that hand facing forward and slightly upward towards the ceiling. Place other hand just below the wrist, further rotate the arm towards the floor against the resistance of other hand. Release the pull and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.
