
standing scaption hold at 90 degrees with self-resistance applied above wrist, thumb up, repeated isometric contractions
Stand, elevate the arm to 90 degrees at angle of 30 degree from the trunk, thumb pointing towards the ceiling. Place other hand just above the wrist. Elevate the arm further against the resistance of other hand. Release the resistance and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.