isolated finger extension against rubber band resistance to strengthen extensor muscles of individual fingers
Sit on the chair, rest the forearm on arm rest such that hand is off the arm rest and palm facing towards the floor. Loop a ruuber band on one finger and hold it with another hand below the finger. Move the finger towards celing against the resistance of the rubber band. Release the resistance and repeat with 4 fingers alternate.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.
