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The impact of cognitive function on physical activity, physical function and quality of life in older adults
Henrik A Runde1, Kristin Taraldsen2, Turid Follestad3
1Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, NTNU-Norwegian University of Science and Technology, Trondheim, Norway.
Objective:
To determine the impact of cognitive function on physical activity (PA), physical function and health-related quality of life (HRQoL) in older adults within the first year after hip fracture (HF) surgery.
Methods:
We included 397 home-dwelling individuals aged 70 years or older with the ability to walk 10 m before the fracture. Cognitive function was measured at 1 month and other outcomes were assessed at 1, 4 and 12 months postoperatively. Mini-Mental State Examination was used to assess cognitive function, accelerometer-based body-worn sensors to register PA, Short Physical Performance Battery to test physical function and EuroQol-5-dimension-3-level to estimate the HRQoL. Data were analysed by linear mixed-effects models with interactions and ordinal logistic regression models.
Results:
Cognitive function, adjusted for the pre-fracture ability to perform activities of daily living, comorbidity, age and gender, had an impact on PA [b = 3.64, 95% confidence interval (CI): 2.20-5.23, P < 0.001] and physical function (b = 0.08, 95% CI: 0.04-0.11, P < 0.001; b = 0.12, 95% CI: 0.09-0.15, P < 0.001; and b = 0.14, 95% CI: 0.10-0.18, P < 0.001 at 1, 4 and 12 months, respectively). The cognitive function did not have a considerable impact on HRQoL.
Conclusions:
For older adults with HFs, cognitive function 1 month postoperatively had a significant impact on PA and physical function in the first postoperative year. For the HRQoL, little or no evidence of such an effect was found.
