Current agreement between ActiGraph and CUPAR in measuring moderate to vigorous intensity physical activity for adolescents.

"Declarations Ethics approval and consent to participateAll methods of this research were carried out in accordance with relevant guidelines and regulations. And we confirmed that informed consent was obtained from all subjects and/or their legal guardian(s) before the study was carried out. The study procedures were approved by the research ethics board of Zhejiang University (No.2020-002, 2020.07.22). Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was funded by the National Social Science Foundation Key Program Project (# 17ATY009) and Double First-Class Construction Fund of Zhejiang University."