Validation of a self-reported physical activity questionnaire for schoolchildren.

J Epidemiol · 2003 · PMC9691394 · PMID 14604224

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an increasing trendno p-value reported

A high frequency of physical activity was significantly associated with an increasing trend in energy expenditure originating from physical activity, steps, and activity counts.

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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.