Physical education is the school subject built to help children reach the daily activity that health agencies recommend, and the research on whether it also helps academic results points mostly to no harm and, in many studies, a modest benefit. A 2010 review by the U.S. Centers for Disease Control and Prevention of 50 studies found that more time in physical education had a positive relationship or no relationship with academic achievement, and no sign of a negative one. A 2019 review of 58 intervention studies judged the evidence for mathematics strong but called the overall case for cognitive and academic benefits inconclusive.
Key takeaways
- Both the CDC and the Canadian 24-Hour Movement Guidelines recommend at least 60 minutes of moderate-to-vigorous activity a day for school-age children.
- Ontario requires at least 20 minutes of moderate-to-vigorous activity each school day in Grades 1 to 8 under Policy/Program Memorandum 138.
- In the CDC review, 11 of 14 physical education studies found at least one positive association with academic indicators, and none found harm.
- A 2019 review rated only 11 of 58 intervention studies as high quality, and its experts asked for better designs.
- No trial measuring learning or fitness outcomes of AI tools in school physical education was located for this article.
What health agencies recommend for school-age children
The CDC's guidance for children aged 6 to 17, on a page dated December 4, 2025, calls for at least 60 minutes of moderate-to-vigorous physical activity every day. Most of that time should be aerobic, and vigorous activity, muscle-strengthening, and bone-strengthening activity should each appear at least three days a week.
The Canadian 24-Hour Movement Guidelines for Children and Youth, for ages 5 to 17, use the same 60-minute figure and add limits on the rest of the day: no more than two hours of recreational screen time, and nine to 11 hours of sleep for ages 5 to 13 or eight to 10 hours for ages 14 to 17. The Canadian page shows no publication date. School time is only part of a child's day, which is why the guidelines treat activity, screens, and sleep together.
What schools are required to provide
Requirements differ by jurisdiction. In Ontario, Policy/Program Memorandum 138, issued October 5, 2017, says school boards must ensure that all elementary students, including those with special education needs, get a minimum of 20 minutes of moderate-to-vigorous physical activity each school day during instructional time. It applies to Grades 1 to 8, and a health and physical education class can count toward the 20 minutes. On days when the class falls short or does not meet, other opportunities must make up the time.
At the secondary level, the Ontario diploma path for students who started Grade 9 in 2024 or later includes one compulsory health and physical education credit among its 17 compulsory credits. In Texas, Texas Education Agency guidance dated July 28, 2023 says state law and State Board of Education rules make physical education part of the required curriculum.
What the research found
The CDC review, revised in July 2010, searched nine databases, screened 406 articles, and included 43 articles reporting 50 unique studies. Across them it recorded 251 associations between physical activity and academic performance. Slightly more than half, 50.5 percent, were positive, 48 percent were not significant, and 1.5 percent were negative. For school-based physical education, 14 studies were included. Eleven found at least one positive association with academic indicators, and the other three found no significant association. The authors concluded that increased time in physical education does not appear to have a negative relationship with academic achievement.
A later review, by Amika Singh and colleagues in the British Journal of Sports Medicine in 2019, combined a systematic review of 58 studies with an international expert panel. Only 11 studies were rated high quality. About half of the cognitive measures and 60 percent of the academic comparisons showed a significant benefit, and mathematics showed the most consistent benefits, which the authors judged strong evidence. Overall, they called evidence for broader cognitive and academic benefits inconclusive, and the panel proposed 46 research questions, with causality as the top priority.
How the two reviews compare
| Item | CDC review (2010) | Singh et al. (2019) |
|---|---|---|
| Studies included | 50 studies in 43 articles | 58 intervention studies |
| Quality screen | Studies coded by design and by school activity context | 11 rated high quality |
| Main finding | 50.5% of associations positive, 48% not significant, 1.5% negative | Strong evidence for mathematics; overall evidence inconclusive |
| Message for schools | More physical education time does not appear to hurt academic achievement | Better-designed trials are needed, with causality as the priority |
Where AI tools enter physical education
AI features in this subject are mostly about measurement: fitness trackers, camera-based movement feedback, and apps that adjust a workout. No trial measuring learning or fitness outcomes of such tools in school physical education was located for this article, so claims about their benefits rest on vendor material or small studies that were not verified here.
What can be stated from the nature of the tools is the data question. A tracker records heart rate, movement, and location, which is information about a child. The checklist below is an illustrative set of questions for a family or school, not a legal standard.
- What data does the device or app collect, and is any of it health information?
- Who can see the data, and is it shared with the vendor or other companies?
- How long is it kept, and can it be deleted on request?
- Is participation optional, and is there a no-device alternative that earns the same credit?
- Does the school's student data policy cover the tool?
This article gives general information and is not medical advice. Questions about a child's health or activity limits belong with a health professional.
FAQ
Does more physical education hurt grades?
The CDC review found no sign that increased time in physical education harms academic achievement. It found positive relationships or none. The later 2019 review adds that many studies are of limited quality.
How much activity do children need each day?
Both the CDC and the Canadian 24-Hour Movement Guidelines recommend at least 60 minutes of moderate-to-vigorous physical activity daily for school-age children.
Is physical education required in Ontario?
Yes at two levels. Elementary boards must ensure 20 minutes of daily activity under PPM 138, and the diploma includes one compulsory health and physical education credit for students who started Grade 9 in 2024 or later.
Do fitness trackers improve results in school?
No outcome trials were located for this article. Reviewers of the broader research have asked for stronger studies, and privacy questions come with any device that records a child's body data.
Related reading
- Why education matters, according to UNESCO
- Limits of AI in education
- How an education code shapes schools
- Benefits and drawbacks of AI in education
More in AI in education.
Last verified: October 2026
Sources
- Physical activity guidelines for children, Centers for Disease Control and Prevention, December 4, 2025
- Canadian 24-Hour Movement Guidelines for Children and Youth, Canadian Society for Exercise Physiology, 2026
- Policy/Program Memorandum 138, Ontario Ministry of Education, October 5, 2017
- High school graduation requirements, Government of Ontario, updated September 2, 2026
- The Association Between School-Based Physical Activity, Including Physical Education, and Academic Performance, CDC, July 2010
- Singh AS et al., Effects of physical activity interventions on cognitive and academic performance in children and adolescents, British Journal of Sports Medicine, 2019
- Physical Education and Physical Activity Frequently Asked Questions, Texas Education Agency, July 28, 2023