Study: Preschoolers require 11 hours to achieve recommended daily physical activity

Published on January 9, 2014 at 1:26 AM · No Comments

Preschool-aged children require the majority of their waking day, approximately 11 hours, to achieve their recommended daily physical activity, a Vanderbilt study published in Obesity found.

Children in the study, ages 3-5, achieved this activity through relatively short bursts of energy expenditure as opposed to the longer and more routine periods of exercise typically exhibited by adults.

Senior author Shari Barkin, M.D., director of the Division of General Pediatrics at Monroe Carell Jr. Children's Hospital at Vanderbilt and William K. Warren Foundation Professor of Medicine, notes that several public health organizations offer general guidelines on how much moderate-to-vigorous physical activity (MVPA) a preschooler needs, but there is very little data on how and if this activity is actually attained.

"We set out to understand in what ways healthy preschoolers are physically active throughout the day, since setting good physical activity health habits starts in these early years," Barkin said.

Study participants were parent and child pairs recruited from the Nashville community. Eligible children were either of normal weight or overweight and without medical conditions.

The study's purpose was dual—to characterize the different types of MVPA that preschoolers engage in as well as to develop reliable methods of capturing the amount of daily activity that preschoolers attain.

To measure physical activity, the preschool-aged child participants wore an accelerometer to measure objective muscle movement for seven continuous days, 24 hours per day.

The investigators found that four common patterns of MVPA emerged for the preschoolers, most lasting less than 5 minutes per burst of activity.

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