Comment on: “Health Benefits of Light-Intensity Physical Activity: A Systematic Review of Accelerometer Data of the National Health and Nutrition Examination Survey (NHANES)”
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I read with special interest the recent review by Füzéki et al.  on the potential health benefits of light-intensity physical activity (LIPA) in humans. The article aimed to summarize the literature linking LIPA and health but restricted the search strategy to publications from the National Health and Nutrition Examination Survey (NHANES). In this systematic review, the authors concluded, “the observational evidence that light-intensity physical activity can confer health benefits is accumulating.” Contrary to this statement, I would like to express my thoughts on how Füzéki et al.  misinterpreted the current scientific evidence about the potential effect of LIPA on health.
First, the best observational evidence linking LIPA and health indicates that LIPA is unlikely to confer health benefits in the general population. In the review, the authors identified 37 cross-sectional and three longitudinal [2, 3, 4] studies (keeping in mind that the latter is a more appropriate study...
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Conflicts of Interest
Juan Pablo Rey-López has no conflicts of interest relevant to the content of this letter.
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