Baseline and follow-up assessments will consist of pain scores, NDI, neck fatigue testing, shoulder and arm reach tasks and walking on a treadmill at 2 MPH for 5 minutes (Neck-walk Index, NWI). Neck fatigue testing will consist of prone positioning and extensor muscle exertion against resistance to tolerance at 60% MVC. Myoelectric sensors will be taped to the skin to record muscle activity during fatigue and reach task testing. Electromagnetic sensors will be taped to a swimmers cap worn by the patient and on the skin at T1 over the spine at the shoulder level and S1 at the pelvis during the walk on the treadmill and on the shoulder and arm during reach testing.