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- Title
Bidirectional Within- and Between-Person Relations Between Physical Activity and Cognitive Function.
- Authors
Stenling, Andreas; Sörman, Daniel Eriksson; Lindwall, Magnus; Machado, Liana
- Abstract
Objectives To examine bidirectional within- and between-person relations between physical activity and cognitive function across 15 years. Methods Participants (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). Results We 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. Discussion The 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.
- Subjects
STATISTICS; TEACHING methods; TIME; PHYSICAL activity; EPISODIC memory; DESCRIPTIVE statistics; COGNITIVE testing; DATA analysis software; LONGITUDINAL method
- Publication
Journals of Gerontology Series B: Psychological Sciences & Social Sciences, 2022, Vol 7, Issue 4, p704
- ISSN
1079-5014
- Publication type
Article
- DOI
10.1093/geronb/gbab234