Published on in Vol 8, No 3 (2019): March
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11992, first published
.
1 School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia
2 Priority Research Centre for Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia