Media type: E-Article Title: Non-linear association of efficiency of practice of adult elite athletes with their youth multi-sport practice Contributor: Barth, Michael; Güllich, Arne imprint: Informa UK Limited, 2021 Published in: Journal of Sports Sciences Language: English DOI: 10.1080/02640414.2020.1851900 ISSN: 0264-0414; 1466-447X Keywords: Physical Therapy, Sports Therapy and Rehabilitation ; Orthopedics and Sports Medicine Origination: Footnote: