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. 2019 Jun;51(6):1282-1291.
doi: 10.1249/MSS.0000000000001940.

Physical Activity and Health in Children Younger than 6 Years: A Systematic Review

Russell R Pate  1 , Charles H Hillman  2 , Kathleen F Janz  3 , Peter T Katzmarzyk  4 , Kenneth E Powell  5 , Andrea Torres  6 , Melicia C Whitt-Glover  7 ; 2018 PHYSICAL ACTIVITY GUIDELINES ADVISORY COMMITTEE*
Affiliations

Physical Activity and Health in Children Younger than 6 Years: A Systematic Review

Russell R Pate et al. Med Sci Sports Exerc. 2019 Jun.

Abstract

Purpose: Physical activity is known to provide important health benefits in school-age youth. However, until recently, few studies have examined associations between physical activity and health in young children. The purpose of this study was to conduct a systematic review of the relationship between physical activity and selected health outcomes in children younger than 6 yr.

Methods: A systematic search identified randomized controlled trials and prospective cohort studies examining the associations between physical activity and adiposity/weight status, bone health, cardiometabolic health, and cognition in children younger than 6 yr.

Results: Twenty-seven studies met inclusion criteria and served as the basis for this systematic review. For weight status/adiposity, 12 of 15 studies found negative associations between physical activity and one or more measures of the outcome. For bone health, 10 articles based on four studies were identified, and nine studies showed stronger bone in more active children. For cardiometabolic health, three studies were identified and findings were limited and inconsistent. For cognition, two systematic reviews were identified and findings were limited. For all four health outcomes, evidence of dose-response relationships and effect modification by demographic factors was very limited.

Conclusions: There is strong evidence indicating that higher amounts of physical activity are associated with better indicators of bone health and with reduced risk for excessive increases in weight and adiposity in children 3 to 6 yr. Evidence was too limited to support conclusions regarding the effects of physical activity on cardiometabolic health and cognition.

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Conflict of interest statement

The authors do not have any conflicts of interest.

Figures

Figure 1.
Figure 1.
Summary of the Search of Primary Research on Physical Activity and Health Outcomes in Children Under 6 Years of Age
See this image and copyright information in PMC

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