evidence: Students in the intervention schools performed significantly greater levels of physical activity in the classroom than students in the control schools; higher scores indicate higher activity intensity levels (intervention students 3.40 ± 0.02 vs control students 2.17 ± 0.03, p < 0.0001).
intervention: Physical Activity Across the Curriculum (PAAC)
comparator: control
outcome: levels of physical activity in the classroom