Fig. 1

Method used for assessing and describing physical activity and sedentary behavior in children and adolescents. In the context of the Belgian Food Consumption Survey 2014, physical activity and sedentary behavior of Belgian children (3–9 years) and adolescents (10–17 years) were assessed and described based on data from both objective (accelerometers) and subjective (self-reported questionnaires ToyBox and FPAQ) sources. LPA: low physical activity; MPA: moderate physical activity; VPA: vigorous physical activity; PA: physical activity