Document is current

Article History

Received: 18 February 2026

Accepted: 26 August 2026

First Online: 17 September 2026

Declarations

Ethics approval and consent to participate: The study was approved by the Bioethics Committees of the Andalusian Government and the University of Cadiz (Cadiz, Spain), as well as the Bioethics and Biosafety Committees of the University of Extremadura (Caceres, Spain). The ACTIVE CLASS research protocol was reviewed and approved by the Bioethics Committee of the Andalusian Government (Cádiz, Spain) [registration number: 126.20] and the Bioethics and Biosafety Committee of the University of Extremadura (Cáceres, Spain) [registration number: 236//2019]. The MOVESCHOOL research protocol was reviewed and approved by the Bioethics Committees of the University of Cadiz (Cadiz, Spain) [registration number: CEENB006-2023] and the Bioethics and Biosafety Committee of the University of Extremadura (Cáceres, Spain) [registration number: 174//2023].Written informed consent was obtained from the parents or legal guardians of all participants included in the study.

Consent for publication: Not applicable.

Competing interests: The authors declare no competing interests.