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Grip Strength Trajectories and Cognition in English and Chilean Older Adults: A Cross-Cohort Study

Angel, Bárbara; Ajnakina, Olesya; Albala, Cecilia; Lera, Lydia; Márquez, Carlos; Leipold, Leona; Bilovich, Avri; ... Bendayan, Rebecca; + view all (2022) Grip Strength Trajectories and Cognition in English and Chilean Older Adults: A Cross-Cohort Study. Journal of Personalized Medicine , 12 (8) , Article 1230. 10.3390/jpm12081230. Green open access

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Abstract

Growing evidence about the link between cognitive and physical decline suggests the early changes in physical functioning as a potential biomarker for cognitive impairment. Thus, we compared grip-strength trajectories over 12-16 years in three groups classified according to their cognitive status (two stable patterns, normal and impaired cognitive performance, and a declining pattern) in two representative UK and Chilean older adult samples. The samples consisted of 7069 UK (ELSA) and 1363 Chilean participants (ALEXANDROS). Linear Mixed models were performed. Adjustments included socio-demographics and health variables. The Declined and Impaired group had significantly lower grip-strength at baseline when compared to the Non-Impaired. In ELSA, the Declined and Impaired showed a faster decline in their grip strength compared to the Non-Impaired group but differences disappeared in the fully adjusted models. In ALEXANDROS, the differences were only found between the Declined and Non-Impaired and they were partially attenuated by covariates. Our study provides robust evidence of the association between grip strength and cognitive performance and how socio-economic factors might be key to understanding this association and their variability across countries. This has implications for future epidemiological research, as hand-grip strength measurements have the potential to be used as an indicator of cognitive performance.

Type: Article
Title: Grip Strength Trajectories and Cognition in English and Chilean Older Adults: A Cross-Cohort Study
Location: Switzerland
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/jpm12081230
Publisher version: https://doi.org/10.3390/jpm12081230
Language: English
Additional information: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords: Cognition, grip strength, longitudinal study, older adults
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Behavioural Science and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10155030
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