Department of Physical Therapy, Faculty of Medicine, University of British Columbia, 212 Friedman Building, 2177 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada. Faculty of Health Sciences, Simon Fraser University, c/o Healthy Heart Program, St. Paul's Hospital 180 - 1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada. Rehabilitation Research Program, GF Strong Rehabilitation Research Lab, Vancouver Coastal Health Research Institute, 4255 Laurel Street, Vancouver, BC, V5Z 2G9, Canada. Department of Physical Therapy, Faculty of Medicine, University of British Columbia, 212 Friedman Building, 2177 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada. janice.eng@ubc.ca. Rehabilitation Research Program, GF Strong Rehabilitation Research Lab, Vancouver Coastal Health Research Institute, 4255 Laurel Street, Vancouver, BC, V5Z 2G9, Canada. janice.eng@ubc.ca.