Girls in Playworks schools had significantly higher accelerometer intensity counts and spent more time in vigorous physical activity than girls in control schools¶

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2015 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · not reviewed by a person

Subclaims¶

q3 i? In a 29-school randomized trial, girls in Playworks schools had significantly higher accelerometer intensity counts and more vigorous physical activity than girls in control schools. → Martha Bleeker 2015

Evidence¶

Martha Bleeker 2015¶

Martha Bleeker, Nicholas Beyler, Susanne James-Burdumy, Jane Fortson. (2015). The Impact of Playworks on Boys' and Girls' Physical Activity During Recess. Journal of School Health, vol. 85, no. 3. https://www.mathematica.org/publications/the-impact-of-playworks-on-boys-and-girls-physical-activity-during-recess

q3 · i? · causal · r2

Randomized evaluation in which 29 schools were assigned to Playworks or control for one school year; postintervention activity was measured with accelerometers and impacts estimated separately by gender using regression models. The article reports a statistically significant increase for girls with no printed effect size.

"Girls in Playworks schools had significantly higher accelerometer intensity counts and spent more time in vigorous physical activity than girls in control schools."

Discussion¶

Learner Variables¶

• Physical Well-Being — outcome: instruction changes it

Related Claims¶

• Playworks showed significant impact on some measures of girls' physical activity but no significant impact on measures of boys' physical activity — a broader claim this one bears on
• In a randomized controlled trial, children in Playworks schools spent more time in vigorous physical activity at recess than students at non-Playworks schools, and more teachers in Playworks schools reported students engaged in intense recess activity — a broader claim this one bears on
• No significant accelerometer-based differences in physical activity were found for boys in Playworks schools compared with control schools — related
• Girls in Playworks schools were less likely to be sedentary and more likely to engage in jumping, tag, and playground games during recess — a narrower finding that bears on this claim
• Teachers in Playworks schools reported significantly better student behavior at recess and readiness for class — related
• The wellbeing effects of school-led nature interventions show a gender effect, with girls benefiting in PA in some studies, but inconclusive findings for age — related