About the Authors

Mirko Krüger

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

mirko.krueger@uni-due.de

Affiliation Division of Social Sciences in Sports, University of Duisburg-Essen, Essen, North-Rhine Westfalia, Germany

Competing Interests

The author has declared that no competing interests exist.