
elevate arm at 30 degrees from frontal plane to 90 degrees with straight elbow, then lower
Stand with arms by the side, holding dumbbell in exercising hand. Elevate the arm, at the angle of 30 degree from the trunk, straight forward by 90 degrees keeping elbow straight. Lower the arm to starting position and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.