Ya-Ju Chang received the Ph.D. degree from Physical Therapy and Rehabilitation Science Graduate Program, University of Iowa, Iowa City. She is currently a Professor and the chair in the School of Physical Therapy and Graduate Program of Rehabilitation Science, Chang Gung University, Tao-yuan, Taiwan. Her research interest focuses primarily on neuromuscular adaptations after central nervous system lesions, including spinal circuitry adaptation, fatigue adaptations, and therapeutic intervention by electrical stimulation. She is a member of Healthy Aging Research Center of Chang Gung University and Neuroscience Research Center of Chang Gung Memorial Hospital and is in charge of integrating motor performance analysis laboratory.