Published on in Vol 20, No 12 (2018): December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10911, first published
.
1 Alliance for Research in Exercise, Nutrition and Activity, University of South Australia, Adelaide, Australia
2 Ehrenberg-Bass Institute for Marketing Science, University of South Australia, Adelaide, Australia
3 Commonwealth Scientific and Industrial Research Organisation, Adelaide, Australia