“…The M-PAC framework has been employed to describe, explain, and predict PA as well as develop interventions to promote PA (Quinlan et al, 2015;Rhodes et al, 2016aRhodes et al, , 2019Rhodes et al, , 2020aVallerand et al, 2016Vallerand et al, , 2017Kaushal et al, 2017;Liu et al, 2019;Brown et al, 2020;Kwan et al, 2020Kwan et al, , 2021Grant et al, 2021). Given the breadth of reflective, regulatory, and reflexive constructs represented in the model, M-PAC offers a comprehensive framework to examine how adolescents' PA cognitions may have changed as a result of the COVID-19 pandemic, and whether their cognitions prior to the pandemic may predict PA behavior during the pandemic.…”