1. From the Faculty of Medicine, School of Physical and Occupational Therapy, McGill University, and the Centre de recherche interdisciplinaire en réadaptation du Montréal métropolitain (C.D., N.-K.B.); and the Faculty of Medicine, University of Montreal, and the Centre de recherche de l’Institut Universitaire de Gériatrie De Montréal (C.T.), Montreal, Canada.