Guilherme (Gui) M. Cesar, PhD, PT is a rehabilitation researcher who has used his biomechanics background to work with distinct populations spanning from skillful athletes to children with neurologic disabilities. Dr. Cesar has a Bachelor’s degree in Kinesiology, a Bachelor’s and Master’s degree in Physical Therapy. He earned his PhD in Biokinesiology from the University of Southern California where, under the co-mentorship of Susan M. Sigward, PhD, PT, ATC and James Gordon, EdD, PT, FAPTA, he investigated the locomotor strategies children employ to control forward momentum during running gait termination. Dr. Cesar expanded his research with young adults during his postdoctoral fellowship at the Nebraska Athletic Performance Laboratory at the University of Nebraska–Lincoln under the supervision of Judith M. Burnfield, PhD, PT. During his postdoctoral work, Dr. Cesar also worked closely with the Athletic Medicine staff, providing biomechanical approaches to guide safe return to sport after lower extremity injuries, a task familiar to him given his previous experience as a professional basketball athlete. Following, Dr. Cesar furthered his research experience working as the Assistant Research Director of the Movement and Neurosciences Center at Madonna Rehabilitation Hospitals. Dr. Cesar's research aims to guide understanding of how balance control can contribute to movement efficiency, enhanced mobility, and participation. In addition to his research, Dr. Cesar is passionate about education. He has taught graduate and undergraduate coursework in anatomy and anatomy-related courses, human gait, biomechanics, kinesiology, physical rehabilitation, and research methodology.