Purpose: Physical education (PE) is an important context for promoting health-related cardiorespiratory fitness (CRF) in youth. Within PE, the lesson context and teacher behavior may be relevant for the promotion CRF; however, evidence is scarce. Therefore, the purpose of this study was to assess whether students' CRF improvement in a school year…

This study addresses the issue of insufficient physical activity (PA) among youths. The emergence of gamified interventions, such as Gamifiter web portal, offers a novel approach to promoting healthy habits and increasing intrinsic motivation for PA. Gamifiter engages users in virtual challenges linked to daily step counts and progress on a…