ObjectiveGiven the high prevalence of suboptimal nutrition and low activity levels in children, we systematically reviewed the literature on the relationship between physical activity and dietary patterns and cognitive development in early childhood (six months to five years).MethodsIn February 2016, we conducted two different searches of MEDLINE, PsycINFO, and ERIC. Each search included either physical activity (including gross motor skills) or diet terms, and neurocognitive development outcome terms. Included studies were in English, published since 2005, and of any study design in which the physical activity or diet measure occurred prior to age five.ResultsFor physical activity, twelve studies (5 cross-sectional, 3 longitudinal and 4 experimental) were included. Eleven studies reported evidence suggesting that physical activity or gross motor skills are related to cognition or learning. Both acute bouts and longer term exposures showed benefit. For diet, eight studies were included consisting of secondary analyses from longitudinal cohort studies. A healthier dietary pattern was associated with better cognitive outcomes in all studies, although some of the reported associations were weak and the measures used varied across the studies.ConclusionsPhysical activity and healthy diets in early childhood are associated with better cognitive outcomes in young children. The paucity of literature and the variability in the type and quality of measures used highlight the need for more rigorous research. Given that the early childhood years are critical for both obesity prevention and neurocognitive development, evidence that the same healthy behaviors could promote both should inform future interventions.
Research Findings Outdoor play is important for children’s health and development, yet many preschool-aged children in childcare settings do not receive the recommended 60 minutes/day of outdoor play. Childcare providers have previously described parent-related barriers to increasing outdoor playtime, including parents not providing appropriate clothing for their children and parents’ preference for academics over active play. This study explored parent perceptions and knowledge of outdoor playtime in childcare environments. On average, parents reported wanting their child to spend significantly more time playing outside during a full day of childcare than the recommended minimum. However, over one-half of parents reported that they did not know how much time their child actually spent playing outside and 43% reported that they did not know their childcare center’s outdoor play policies. Practice or Policy Childcare providers may over-perceive parent-related barriers to outdoor play. Parents generally support outdoor play for their preschooler during center-based childcare but are not well informed about outdoor playtime and policies. Encouraging communication between parents and early childhood educators about these topics could lead to more universal support and strategies for promoting outdoor and active play opportunities for children which are important for their health and development.
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