This postdoctoral research fellow will join a sports medicine research and musculoskeletal research lab that currently focuses on clinical trials, epidemiology, outcomes, and genetics research on patients with rehabilitation and orthopedic conditions such as rotator cuff tears and glenohumeral osteoarthritis that cause shoulder pain. This position will work on multiple studies/projects including a large multi-center study on the genetic epidemiology of rotator cuff tears called cuffGEN. This large study will collect patient outcomes, saliva and tissue samples to determine the genetic variants associated with rotator cuff tendon disorders. The fellow will also work on ARC which is a multi-center randomized clinical trial on operative versus non-operative treatment for rotator cuff tears.