1. Faculty of Health Sciences and Sport, Pathfoot Building, University of Stirling, Pathfoot Building, Stirling FK9 4LA, UK
2. School of Health and Life Sciences, University of the West of Scotland, Lanarkshire Campus, Hamilton International Technology Park, Stephenson Place, Blantyre, Glasgow G72 0LH, UK
3. School of Nursing, Midwifery and Social Work, University of Queensland