He earned his PhD degree in Industrial and Systems Engineering (with Physical Ergonomics concentration) from Virginia Tech, Blacksburg, VA in 2008. Dr. Liu’s research is primarily focused on in understanding and preventing workplace fall accidents. He has considerable experience with ambulatory measurement technology (e.g., accelerometers, gyroscopes, orientation sensors). Dr. Liu has published extensively in the field of biomechanics and physical ergonomics. He is a certified Associate Ergonomics Professional (AEP), and a member of Human Factors and Ergonomics Society.