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Research: Physical Activity May Help Kids’ Grades Too

Ezra Shaw/Digital Vision/Thinkstock(AMSTERDAM, The Netherlands) -- While physical activity is known to improve children's physical fitness and lower their risk of obesity, new research suggests it may also help them perform better in school.

Dutch researchers reviewed 14 previous studies from different parts of the world that looked at the relationship between physical activity and academic performance.  Their review is published in the journal Archives of Pediatrics and Adolescent Medicine.

The data from the studies, "suggests there is a significant positive relationship between physical activity and academic performance," wrote the authors, led by Amika Singh of the Vrije Universiteit University Medical Center's EMGO Institute for Health and Care Research in Amsterdam.

While they didn't examine the reasons why the relationship may exist, the authors, citing previous research, said regular physical activity seems to be linked to better brain function. The effect on the brain could be the results of a number of factors, including increased flow of blood and oxygen to the brain as well as higher levels of chemicals that help improve mood.

This latest report comes at a time when schools across the country debate cutting physical education from their curriculum or have already eliminated it because of budget constraints, the desire to stress academics or a combination of both. There is also concern that physical activity in schools can be detrimental to academic performance.

But in addition to the latest research review, a 2010 literature review done by the Centers for Disease Control and Prevention found that out of 50 studies, more than half showed a positive association between school-based physical activity -- such as physical education, recess and extracurricular sports -- and academic performance, and about half found no effect. Only a few showed a negative relationship that could be attributable to chance.

Some of the research reported that concentration, memory, self-esteem and verbal skills were among the improvements noted in students who participated in school-based physical activity.

Copyright 2012 ABC News Radio

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