Published on in Vol 8, No 4 (2021): Oct-Dec
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/16864, first published
.
1 Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
2 Department of Physiotherapy, University of Mälardalen, Västerås, Sweden
3 Finnish Institute for Health and Welfare, Helsinki, Finland