1. a Hugh Williamson Gait Laboratory, Department of Orthopaedics, Royal Children’s Hospital , Parkville, Victoria, Australia
2. b Murdoch Children’s Research Institute, Royal Children’s Hospital , Parkville, Victoria, Australia
3. c Department of Physical Therapies , The Australian Institute of Sport , Canberra, Australia
4. d Performance Analysis Unit , The Australian Institute of Sport , Canberra, Australia
5. e Centre for Health, Exercise and Sports Medicine, School of Physiotherapy , The University of Melbourne , Melbourne, Australia