1. JE Cromie, PT, PhD, GradDipOccHealth, was a PhD student in the Schools of Physiotherapy and Occupational Therapy, La Trobe University, Bundoora, Victoria, Australia, at the time of this study.
2. VJ Robertson, PT, PhD, is Associate Professor, School of Physiotherapy, La Trobe University
3. MO Best, PT, MPH, is Senior Ergonomist, Victorian WorkCover Authority, Victoria, Australia