Bradford J. McFadyen is a professor within the Department of Rehabilitation at Université Laval, as well as a researcher at the Centre for Interdisciplinary Research in Rehabilitation and Social Integration within the Quebec Rehabilitation Institute. He is also a Fellow of the Canadian Institute for Military and Veteran Health Research. Dr. McFadyen’s research program spans from basic to applied work related to walking and mobility in healthy and pathological populations. Basic work strives to understand how walking is controlled within different environments across adulthood as well as following injury and trauma. Such research involves the use of virtual reality to control environmental characteristics and social situations. On the applied side, Dr. McFadyen’s research program uses evidence generated at the CIRRIS and from other teams to design clinical protocols using both real and virtual environments to better assess function and expose deficits even in cases of mild injury such as mild traumatic brain injuries or concussion. Such applied work will help clinicians make better decisions about return to function following injury and rehabilitation. Examples of work with military members at the CIRRIS include context specific mobility tasks to expose continuing problems in attention and planning following concussion and a virtual mirror to change perception of low back pain.