Cardiorespiratory Fitness and Muscular Strength Do Not Predict Social Cognitive Capacity in Older Age

Sarah A Grainger, Julie D Henry, Manikya Alister, Xanthia E Bourdaniotis, Jessica Mead, Tom G Bailey, Jeff S Coombes, Natalie Vear and Anne Krendl

The Journals of Gerontology: Series B, 2023, vol. 78, issue 11, 1824-1833

Abstract: ObjectivesSocial cognitive function often declines in older age but the mechanisms underlying these declines are not completely clear. Cardiorespiratory fitness (CRF) and muscular strength are positively associated with broader cognitive function in older adults, yet surprisingly, no study has examined whether a similar relationship exists between CRF or muscular strength and social cognition in older age.MethodsWe assessed whether higher CRF and muscular strength were associated with enhanced social cognitive function in a sample of fifty older adults (Mage = 70.08, standard deviation = 3.93). Participants completed a gold-standard cardiopulmonary exercise test to assess CRF, an isometric handgrip strength test to index muscular strength, and validated measures of social cognition to index emotion perception and theory of mind (ToM).ResultsThe results showed that CRF and muscular strength did not explain any unique variance in older adults’ social cognitive performance. Bayesian analyses confirmed that the evidence for the null hypothesis was moderate for all tested relationships, except for the relationship between CRF and cognitive ToM where the evidence for the null was anecdotal.DiscussionThis study has provided the first evidence to suggest that CRF and muscular strength—two important modifiable lifestyle factors—are not associated with social cognition in healthy older adults. However, replication studies are now needed to cross-validate these findings and to clarify whether any moderating variables may be important for understanding the relationship between fitness and social cognition in older age.

Keywords: Cardiorespiratory fitness; Cognitive function; Muscular strength; Social cognition (search for similar items in EconPapers)
Date: 2023
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