Funding for this research was provided by:
Instituto de Salud Carlos III (CIBEROBN CB12/03/30038)
Fundación Banco Santander
Grant of support to research groups, Balearic Islands Gov) (35/2011;)
EU COST Action (CA16112)
Fundación Deporte Jóven
Received: 15 February 2021
Accepted: 5 July 2021
First Online: 17 July 2021
: The study protocol was approved by the Ethics Committee CEIm Fundació Sant Joan de Déu, Spain (Approval number: PIC-171-18). Parental written informed consent was obtained.
: Not applicable.
: Non declared. The funders had no role in the analysis or interpretation of the data of this study.