Published on in Vol 23, No 7 (2021): July
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/26376, first published
.
1 Department of Movement Science, Faculty of Psychology and Human Movement, University of Hamburg, Hamburg, Germany
2 Fitbase Institute for Online Prevention GmbH, Hamburg, Germany
3 Biopsychology and Neuroergonomics, Technical University of Berlin, Berlin, Germany