
stand near wall with elbow bent 90 degrees, rotate arm inward until little finger contacts wall, push wall with internal rotation force, hold and release
Stand near the edge of wall, bend the elbow to 90 degrees, rotate the arm inwards to 10 degree such that little finger touching the wall. Further push the wall by rotate the hand inward, hold and release the push to starting position.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.