Relationship Between Physical Activity, Sedentary Time, Cardiorespiratory Fitness And Academic Achievement In Norwegian Adolescents.

BACKGROUND: There is increasing evidence of positive associations between physical activity (PA), cardiorespiratory fitness (CRF) and academic achievement. Some studies have found an inverse association between sedentary time and academic achievement, however, the findings are mixed and the literature is inconclusive. PURPOSE: To examine the associations between objectively assessed PA, sedentary time, CRF and academic achievement in a sample of...