1. Joyce Tryssenaar, MEd, BScOT, is Associate Professor, School of Rehabilitation Science, McMaster University, Building T-16, 1280 Main Street W., Hamilton, Ontario L8S 4K1, Canada; tryssen@fhs.mcmaster.ca
2. Janice Perkins, MSc, PT, is Assistant Professor, School of Physical Therapy, Central Michigan University, Mount Pleasant, Michigan