期刊
JOURNALS OF GERONTOLOGY SERIES B-PSYCHOLOGICAL SCIENCES AND SOCIAL SCIENCES
卷 77, 期 4, 页码 704-709出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/geronb/gbab234
关键词
Adults; Cognition; Exercise; Reciprocal relations
资金
- Swedish Research Council [2017-00273, K2010-61X-21446-01, 345-2003-3883, 315-2004-6977]
- Knut and Alice Wallenberg Foundation (KAW)
- Bank of Sweden Tercentenary Foundation [1988-0082:17, J2001-0682]
- Swedish Council for Planning and Coordination of Research [D1988-0092, D1989-0115, D1990-0074, D1991-0258, D1992-0143, D1997-0756, D1997-1841, D1999-0739, B1999-474]
- Swedish Council for Research in the Humanities and Social Sciences [F377/1988-2000]
- Swedish Council for Social Research [1988-1990: 88-0082, 311/19912000]
- Swedish Research Council [2017-00273] Funding Source: Swedish Research Council
This study aimed to examine the bidirectional within- and between-person relations between physical activity and cognitive function. The results showed that higher levels of physical activity at baseline were associated with 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.
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.
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