1. Curtin School of Nursing, Curtin University, Bentley Campus, Perth 6102, Australia
2. School of Nursing, Midwifery and Social Work, The University of Queensland, St Lucia, Brisbane 4067, Australia
3. Menzies Centre for Health Policy, Sydney School of Public Health, The University of Sydney, Camperdown, Sydney 2050, Australia
4. Healthy Connections Exercise Clinic, Burnie Brae Ltd, Chermside, Brisbane 4032, Australia
5. Community Support Office, Burnie Brae Ltd, Chermside, Brisbane 4032, Australia
6. Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, CA 94305, USA