‘A healthy school day’
The authors recommend the following for reducing school-related sedentary behavior:
- Break up periods of extended sedentary behavior with both scheduled and unscheduled movement breaks: at least once every 30 minutes for ages 5-11 years and at least once every hour for ages 12-18 years. Consider activities that vary in intensity and duration (for example, standing, stretching breaks, moving to another classroom, active lessons, active breaks).
- Incorporate different types of movement into homework whenever possible, and limit sedentary homework to no more than 10 minutes per day per grade level (for example, no more than 10 minutes per day in grade 1, or 60 minutes per day in grade 6).
- Regardless of the location, school-related screen time should be meaningful, mentally or physically active, and serve a specific pedagogic purpose that enhances learning, compared with alternative methods. When school-related screen time is warranted, the following are recommended: limit time on devices, especially for students age 5-11 years; take a device break at least once every 30 minutes; discourage media multitasking in the classroom and while doing homework; and avoid screen-based homework within an hour of bedtime.
- Replace sedentary learning activities with movement-based learning activities (including standing) and replacing screen-based learning activities with non–screen-based learning activities (for example, outdoor lessons) can further support students’ health and well-being.
“Given the important role that schools can play in the promotion of healthy behaviors,” Dr. Saunders and associates wrote, “we encourage national and international public health agencies to consider inclusion of specific recommendations related to the school environment in future sedentary behavior guidelines.”
A version of this article first appeared on Medscape.com.