Published on in Vol 6 , No 4 (2020) :Oct-Dec
Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/18540, first published .
1 Department of Sociology, University of British Columbia, Vancouver, BC, CA
2 Department of Computer Science, University of Victoria, Victoria, BC, CA
3 School of Exercise Science, Physical & Health Education, University of Victoria, Victoria, BC, CA