Flexion and extension exercises
1. Flexion at the wrists to the sides
Place your forearms on a flat surface such as a table or knees. Without moving your elbows or forearms, move your wrists from side to side. If one arm is weaker than the other, use the stronger arm to bend the weaker arm at the wrist from side to side.
2. Flexion of the fingers
Place your forearms on a flat surface such as a table or knees. Make a tight fist, and then unclench and straighten your fingers. If one hand is weaker than the other, use your stronger hand to bend and straighten the fingers of the weaker hand.