To stretch the extensors of the forearm, which helps with wrist stiffness and tennis elbow (lateral epicondylitis) conditions
Demonstration and Instructions
With the affected arm out straight, drop the wrist down and gently increase the stretch by pulling on the knuckles with the other hand. Then curl the fingers into increase the stretch. Make sure you keep the elbow straight
Special Notes
Alternatively - you can place the back of your wrist on a bed, keeping your elbow straight to get the stretch, and then curl your fingers up