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Differential Longitudinal Associations Between Domains of Cognitive Function and Physical Function: A 20-Year Follow-Up Study

Author

Listed:
  • Giovanni Sala
  • Yukiko Nishita
  • Chikako Tange
  • Shu Zhang
  • Fujiko Ando
  • Hiroshi Shimokata
  • Rei Otsuka
  • Hidenori Arai
  • Shevaun D Neupert

Abstract

ObjectivesCognitive and physical functions are both associated with disability and death. Recent studies have addressed the relationship between cognitive declines and physical declines; however, whether various facets of cognition are diversely associated with specific physical functions is yet to be ascertained. The present work examines the longitudinal associations between fluid and crystallized cognitive functions (Gf and Gc) and physical functions.MethodsThe sample consisted of 863 community-dwelling older adults (baseline age 60–79 years) from the National Institute for Longevity Sciences-Longitudinal Study of Aging. The participants were tested on a set of Gf and Gc tests and physical tests (grip strength and gait speed). We ran a series of Multivariate Latent Growth Curve models. Specifically, we tested the relationship between cognitive and physical functions in terms of baseline performance (intercept) and rate of change (slope).ResultsThe slope–slope correlations between Gf and physical function were large (grip strength r = 0.64 and gait speed r = 0.68, ps

Suggested Citation

  • Giovanni Sala & Yukiko Nishita & Chikako Tange & Shu Zhang & Fujiko Ando & Hiroshi Shimokata & Rei Otsuka & Hidenori Arai & Shevaun D Neupert, 2024. "Differential Longitudinal Associations Between Domains of Cognitive Function and Physical Function: A 20-Year Follow-Up Study," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 79(1), pages 1-11.
    • Handle: RePEc:oup:geronb:v:79:y:2024:i:1:p:1-11.
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