Andrew Johnson serves as a Physical Therapist for the Operational Medicine Squadron within the Special Warfare Training Wing at Chapman Annex, Joint Base San Antonio, TX. He also serves as faculty for the United States of America Air Force Orthopedic Physical Therapy Residency Program at Wilford Hall Ambulatory Surgical Center. He graduated from Marshall University with a Doctorate in Physical Therapy and is also a Certified Strength and Conditioning Specialist® (CSCS®). Furthermore, he is a Board-Certified in both Orthopedic and Sports Physical Therapy. Current research topics include bone stress injury incidence and predictive factors in addition to training workload and musculoskeletal injury risk.