1. Physiotherapy Department, Kapooka Medical Company, 1st Recruit Training Battalion, Blarney Barracks, Kapooka, New South Wales 2661, Australia
2. School of Physiotherapy, Faculty of Health Sciences, University of Sydney, P.O. Box 170, Lidcombe, New South Wales 2141, Australia
3. Gailey Fiveways Physiotherapy, 136 Indooroopilly Road, Taringa, Queensland 4068, Australia
4. School of Biomedical Sciences, Charles Sturt University, P.O. Box 588, Wagga Wagga, New South Wales 2678, Australia