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Authors
Helgadóttir, Björg
Wang, Rui
Kuja-Halkola, Ralf
Wiklund, Camilla A.
Ekblom, Örjan
Ekblom, Maria M.
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Funding
Funding for this research was provided by:
Swedish School of Sport and Health Sciences
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Article History
Received: 3 December 2025
Accepted: 25 May 2026
First Online: 10 June 2026
Declarations
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: The authors declare no competing interests.
: The parents gave written informed consent for their children’s participation in the study. The study was approved by the Swedish Ethical Review Authority (Dnr: 2016/2135-31 and 2020 − 00594) and was conducted in accordance to the Declaration of Helsinki.
: All authors approved the manuscript and consent to its publication.
