Dr. Rehberg is a recognized expert in the fields of athletic training, sports medicine, sport safety, and emergency care. He is a licensed/certified athletic trainer with experience at the youth, high school, collegiate, professional and Olympic levels. He is a full professor teaching in the areas of athletic training and sports medicine, and an author of two textbooks and several published papers. Specific expert areas include sports-related concussion, immediate care of sports injuries, sudden death, spinal injuries, and standard of care issues. He has authored over a dozen online continuing education courses on concussion and sports-related injuries, and is the subject matter expert for a national first aid training provider.