Journal
NUTRIENTS
Volume 14, Issue 13, Pages -Publisher
MDPI
DOI: 10.3390/nu14132609
Keywords
executive function; inhibitory control; information processing; randomized control trial; stunting
Categories
Funding
- Foundation Botnar, Basel Switzerland [6071]
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This study examined the effects of school-based physical activity and multi-micronutrient supplementation on cognitive and academic performance. The results showed improvements in cognitive performance for all intervention groups, but no significant effects on academic achievement. Future research should further explore the optimal design of school-based nutrition and physical activity programs.
Executive functions (EFs) are essential for optimal academic development. Appropriate nutrition and physical activity (PA) have been shown to facilitate optimal cognitive development. Therefore, this study examined whether a 12-week school-based PA and multi-micronutrient supplementation (MMNS) intervention would improve cognitive and academic performance. A cluster-randomized controlled trial (RCT) was conducted. Children from four schools located in a peri-urban area of South Africa were randomly assigned to (i) PA + MMNS, (ii) PA + placebo, (iii) MMNS or (iv) placebo. Information processing and inhibitory control were measured with a computerized Flanker task. End-of-year results provided insight into academic achievement. Anthropometric measures were used to determine nutritional status. Data were analyzed with linear mixed-models, adjusting for baseline scores, school classes and age; 932 children (458 girls (49.1%), M-age (mean age) = 8.42 +/- 1.94 years) completed baseline and post-intervention assessments. Cognitive performance improved among all four groups, with no significant group x time effects. For academic achievement, there was no significant interaction effect between the combined intervention group and placebo. We encourage future studies in this neglected area in order to determine the most optimal design of school-based nutrition and PA programs to enhance overall cognitive performance.
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