“…In this regard, mobile applications such as Strava, Pacer or MapMyWalk have been shown to be ideal for this purpose, as they utilize numerous behavioral change techniques (Bondaronek et al, 2018 ), but their effectiveness has only been demonstrated in the adult population (Leong & Wong, 2017 ; Peng et al, 2016 ; Petersen et al, 2020 ). Thus, in the adolescent population, attempts to integrate the use of mobile apps in the educational setting have shown no or small benefits on physical activity, fitness, AMD, and body composition in adolescents (Direito et al, 2015 ; Gil-Espinosa et al, 2020 ), probably due to the lack of adherence to this type of interventions or to the optional nature of their use (He et al, 2021 ; Seah & Koh, 2021 ).…”