Irene S. Davis, PhD, PT, FAPTA is a Professor in the Department of Physical Medicine and Rehabilitation at Harvard Medical School. She is also the founding Director of the Spaulding National Running Center. Dr. Davis is a Professor Emeritus in Physical Therapy at the University of Delaware where she served on the faculty for over 20 years. Her research is focused on the relationship between lower extremity structure, mechanics and musculoskeletal injury. She has pioneered the area of retraining faulty gait patterns in both walking and running. She has received funding from the Department of Defense, Army Research Office and National Institutes of Health to support her research. Dr. Davis has given over 300 lectures both nationally and internationally and authored over 110 publications. She is a Fellow and Past President of the American Society of Biomechanics. She is also a Fellow of the American College of Sports Medicine and a Catherine Worthingham Fellow of the American Physical Therapy Association.