Published on in Vol 20, No 10 (2018): October
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10412, first published
.
1 Research Group Physical Activity and Health, Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium
2 Ghent Health Psychology Lab, Department of Experimental-Clinical and Health Psychology, Ghent University, Ghent, Belgium