lying supine with elbow supported and flexed, opposite hand guides forearm through external rotation movement.
Lie on the back with feet on the floor and knees bend and place a towel roll under the elbow and bend to 90 degrees, hold the forearm just above the wrist with other hand. Holding the wrist with other hand, rotate the arm outward such that hand away from the body, rotate back to starting position. Repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.
