Funding for this research was provided by:
Gothenburg Athletics Association (-)
Text and Data Mining valid from 2020-05-04
Received: 7 January 2020
Accepted: 20 March 2020
First Online: 4 May 2020
Ethics approval and consent to participate
: The study was approved by the Regional Ethical Committee in Gothenburg (dnr. 723–16). All participants provided written informed consent prior to participation. All data is stored on an internal server to which only the project leader and medical professionals affiliated with the study have access. All participants were given a coded ID-number at enrollment and all personal data (e.g. name and social security number) were removed from all digital files in line with the General Data Protection Regulation (GDPR).
: Not applicable.
: The authors declare that they have no competing interests.