Effects of school-based active breaks on motor competence, physical fitness, academic outcomes, and health behaviors in Chilean preschoolers: protocol for a three-arm, non-randomized cluster-controlled mixed-methods trial

Background

Although school-based physical activity (PA) is associated with improvements in multiple health and learning indicators, significant gaps persist regarding its systematic implementation at the preschool level. This protocol presents the rationale and methodological design of a curriculum-integrated active break program aimed at evaluating its impact in 5- to 6-year-old preschoolers.