Inclusion Criteria:  The inclusion criteria for the participating students are a) children enrolled in 1st-grade in municipal schools in the city of Talca; b) without impediments to physical activity; c) able to understand an order considering their age; d) residents in the commune of Talca; and e) with a commitment not to change school or residence during the duration of the project.  Exclusion Criteria:  The exclusion criteria are presenting any medical condition that prevents the development of the evaluations and/or presenting any behavioral disorder condition.