Bidirectional Within- and Between-Person Relations Between Physical Activity and Cognitive Function

Andreas Stenling, Daniel Eriksson Sörman, Magnus Lindwall and Liana Machado

The Journals of Gerontology: Series B, 2022, vol. 77, issue 4, 704-709

Abstract: ObjectivesTo examine bidirectional within- and between-person relations between physical activity and cognitive function across 15 years.MethodsParticipants (N = 1,722, age range 40–85 years, 55% women) were drawn from the Betula prospective cohort study. We included 4 waves of data. Bivariate latent curve models with structured residuals were estimated to examine bidirectional within- and between-person relations between physical activity and cognitive function (episodic memory recall, verbal fluency, visuospatial ability).ResultsWe observed no statistically significant bidirectional within-person relations over time. Higher levels of physical activity at baseline were related to less decline in episodic memory recall. Positive occasion-specific within- and between-person relations were observed, with the most consistent being between physical activity and episodic memory recall.DiscussionThe lack of bidirectional within-person relations indicates that shorter time lags may be needed to capture time-ordered within-person relations. The link between higher physical activity at baseline and less decline in episodic memory recall over time may indicate a protective effect of physical activity on episodic memory recall.

Keywords: Adults; Cognition; Exercise; Reciprocal relations (search for similar items in EconPapers)
Date: 2022
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The Journals of Gerontology: Series B is currently edited by Psychological Sciences - S. Duke Han, PhD and Social Sciences - Jessica A Kelley, PhD, FGSA

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