Resisted finger flexion with therapy putty (flat fist) (Finger flexion strengthening, with putty, flat fist)

Sit upright in a chair.
Place your affected arm on a table, holding the forearm up with your wrist straight and fingers relaxed.
Bend the knuckles and middle joints of your fingers, keeping the tips of your fingers straight.
Place the putty between your fingers and your palm.
Try to squeeze the putty into your palm without bending the tips of your fingers.