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Article History

Received: 11 November 2022

Revised: 24 January 2023

Accepted: 25 January 2023

First Online: 20 March 2023

Declarations

:

: None of the authors had conflicts of interest or competing interests regarding this study. The authors had no financial disclosures and no conflict of interests concerning the research related to the current study.

: The data that support the findings of this study are available from the corresponding authors upon request, if reasonable.

: Participants who were contact sport players (six footballers and a rugby player) provided written authorization to report detailed information on their career (e.g., length, player position, concussions). The study was approved by the local ethics committee of our institution and written informed consent was obtained from all participants. The ethical committee of the Hospital Clinic de Barcelona approved this study (HCB/2020/1325), and participants (or their relatives) gave written informed consent, which was obtained according to the Declaration of Helsinki.