ArticlePhysiological reports2025
Postprandial exercise attenuates glucose and insulin and is associated with age, cognitive function, and extracellular/intracellular body water.
Article in Physiological reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Postprandial exercise attenuates glucose/insulin and is recommended for people with metabolic disease. The magnitude of the attenuation has not been directly compared in healthy older and younger people, who are active exercisers, or correlated to biomarkers associated with aging like body water ratios and cognitive function. We determined whether a dose of prescribed exercise attenuated postprandial insulin and glucose in younger and older participants; then, we determined if age, cognitive function, and extracellular to intracellular body water levels (ECW/ICW) were associated with that attenuation. Thirty-six people, 19 younger adults (seven female) and 17 older adults (nine female), had blood samples taken after a standardized meal followed by exercise or quiet sitting. Participants completed the National Institutes of Health Toolbox assessing cognitive function and had their anthropometrics assessed including ECW/ICW. Postprandial exercise decreased insulin and glucose in younger and older adults compared to postprandial sitting (p < 0.001, p = 0.003). There were strong correlations between the extent of the metabolic response after exercise and age, ECW/ICW, and cognitive function. Our results highlight that postprandial exercise reduced insulin and glucose among young and old active exercisers and this change was associated with a person's cognitive function and body water compartment ratio (ECW/ICW).
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