
isometric finger strengthening by pressing opposing fingers together while standing with elbows bent at 90 degrees
Stand, bend elbow to 90 degree with palm facing towards each other, move the wrist towards the thumb and spread the fingers and touch the same fingers of opposite hand. With maintaing the fingers position, press the fingers against each other, hold and release the press. Repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.