An assistant athletic trainer works for a sports team or organization, school athletic program, gym, or another fitness facility. Your job is to assist the head trainer as they provide treatment or rehabilitation to athletes. You may work with athletes before and after practice and games to ensure injury prevention and game readiness. As an assistant athletic trainer, your responsibilities also include the treatment and rehabilitation of injuries sustained during games or athletic events. Other duties involve assisting with an athletic training regimen and advising athletes on ways to keep safe during athletic activity.