Carol A. Courtney PT, PhD, ATC is Professor at Northwestern University. She received a Bachelor of Science in Physical Therapy from Washington University in St Louis, Master of Science from the University of South Australia and Louisiana State University, and a PhD from the University of Miami. Dr. Courtney is a licensed physical therapist and athletic trainer, and has been recognized as a Fellow of the American Academy of Orthopaedic Manual Physical Therapists. In 1991 and 1992, she was chosen to serve on the USA medical staffs for the Pan American Games in Havana, Cuba, and the Olympic Games in Barcelona, Spain. Dr. Courtney has clinical expertise in the management chronic musculoskeletal pain and sports injury. Her research investigates the effects of knee joint injury and osteoarthritis on pain processing and joint function, as well as modulation of pain mechanisms through manual therapy and exercise interventions. She has over 100 peer-reviewed publications, book chapters and conference presentations and has presented both nationally and internationally on this research.