Roca Ball golfer's elbow twist exercise builds forearm and hand strength and is ideal for strengthen the muscles used in a golf swing. Hold a two one pound balls and with the palm of the hand facing up, rotate the hand 90 degrees or so and then return back to the palm up position. This exercise can be done standing or while sitting.
This exercise is also good for helping treat injuries golfer's elbow. Ten repetitions per each directional movement is a suggested amount, but do more or less depending on your strength. If you have an injury, or history of an injury, always consult with a doctor before doing exercises with weights.