After the patient signs informed consent, a demographic form will be completed. At this enrollment visit, both groups will be asked to use a visual analog scale to report level of shoulder and/or extremity discomfort. Physical exam will include the impingement test, assessment of shoulder elevation, and measurement of the angle of abduction at which discomfort occurs. Subjects will be given the QuickDASH questionnaire (Appendix B) to complete. This questionnaire is an 11 item self-report questionnaire designed to assess the physical function and symptoms during certain activities.