Waldén, Markus http://orcid.org/0000-0002-6790-4042
Ekstrand, Jan http://orcid.org/0000-0002-6092-266X
Hägglund, Martin http://orcid.org/0000-0002-6883-1471
McCall, Alan http://orcid.org/0000-0003-3780-8153
Davison, Michael http://orcid.org/0000-0001-8142-622X
Hallén, Anna http://orcid.org/0000-0002-0478-8603
Bengtsson, Håkan http://orcid.org/0000-0003-3809-5909
Funding for this research was provided by:
Linköping University
Article History
Received: 10 January 2022
Accepted: 25 April 2022
First Online: 13 May 2022
Declarations
:
: Written informed consent was collected from all participating players before inclusion. The ECIS protocol has been approved by the UEFA Football Development Division and the UEFA Medical Committee.
: Not required.
: The authors—Markus Waldén, Jan Ekstrand, Martin Hägglund, Alan McCall, Michael Davison, Anna Hallén, Håkan Bengtsson—declare that they have no competing interests.