1 Department for Health Education and Sport Psychology, Institute for Sport and Sport Science, Karlsruhe Institute of Technology, Karlsruhe, Germany.
2 Department of Health Science, Institute of Sport Science, University of Bern, Bern, Switzerland.
3 Department of Health and Social Sciences in Sport Science, University of Konstanz, Konstanz, Germany.
4 Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, RI, United States.
5 Department for Interdisciplinary Science, Technology, Engineering and Mathematics Education and Physical Education, Institute for Sport and Sport Science, Karlsruhe Institute of Technology, Karlsruhe, Germany.
6 School of Exercise Science, Physical and Health Education, University of Victoria, Victoria, BC, Canada.