Whatever method you ultimately choose to go with be sure to warm up the wrist first (you can use a heating pad set at low to medium level for 20 minutes), practice good form with the repetitions done smoothly, rest 90 seconds between sets and at the end of your workout ice the area down for 20 minutes. Crushed ice in a sandwich bag wrapped in a wet washcloth conforms to the area very well. If you experience any pain, hold off for a couple of days (at least) before trying again and do ice to the area ( 20 minutes on, 20 minutes off) and, if needed, even take aspirin for pain/inflammation.