Objectively measured physical activity and academic performance in school?aged youth: The UP&DOWN longitudinal study

To examine the longitudinal relationships between objectively measured total volume and specific intensities of physical activity (PA) with academic performance in a large sample youth aged 6-18 years. A study 1046 (10.04 ± 3.10 years) from Spain was followed over 2 PA (volume intensity) by accelerometry. Academic assessed through grades reported on transcript at end year (Mathematics, Language, an average these two core subjects, grade point [GPA]). Longitudinal four indicators were examined using covariance regression analyses, adjusted for variety confounders. Youth Quartile baseline obtained better scores than those who participated Quartiles 1 or 4 volumes GPA years later (p = 0.006). There generally no associations any (all p > 0.170). However, change light inversely associated three (?range, -.103 to - 090; all P < 040). Findings suggest that participants had comparison during youth, but there association changes time. intensity unrelated youth. inverted u-shape relationship GPA.