Document is current

Article History

Received: 7 December 2020

Accepted: 8 September 2021

First Online: 11 October 2021

Declarations

:

: The study was approved by the Rector of the Education Authority on March 19th 2019.The study was approved by the Aix-Marseille University Ethics Committee (No. 2019-23-05-003).A parental consent form was distributed to students between March 25 and March 29 2019 by their Physical Education teachers. They had two weeks to return the form. Of 1257 adolescents, 1149 (91.4%) returned a completed parental consent form and were included in the study.

: Not applicable.

: The authors declare that they have no competing interests.