No effects of a long-term physical activity intervention on executive functioning among adolescents.

SAGE Open Med · 2019 · PMC6778986 · PMID 31632675

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a strong trendno p-value reported

Background There is a strong trend toward introducing more physical activity in the school curriculum to improve academic performance.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.