Dr. Karim Khan is Professor and clinician-scientist, Department of Family Practice, UBC. Dr. Khan has achieved international recognition for studies promoting greater mobility among vulnerable seniors. In a medical community that often focuses on pharmaceutical therapies, Dr. Khan has consistently reported the large benefit of physical activity for public health. He has published extensively, including those in high impact journals such as the British Medical Journal, where he also serves on the international editorial board. Dr. Khan is also the Editor of the British Journal of Sports Medicine, a leading international journal that focuses on the role of physical activity for health. Reflecting his contribution to knowledge translation, he is coauthor of the leading medical monograph for general practitioners and physiotherapists, Clinical Sports Medicine (4th Edition, McGraw-Hill).