Cited by 616Dementia and Cognitive Impairment ResearchPhysical Activity and HealthIntensive Care Unit Cognitive Disorders

The effect of physical activity on cognitive function in patients with dementia: a meta-analysis of randomized control trials

Groot, C., Hooghiemstra, A.M., Raijmakers, P.G.H.M., van Berckel, B.N.M., Scheltens, P., Scherder, E.J.A., van der Flier, W.M., Ossenkoppele, R.·2016·Ageing Research Reviews

Abstract

Non-pharmacological therapies, such as physical activity interventions, are an appealing alternative or add-on to current pharmacological treatment of cognitive symptoms in patients with dementia. In this meta-analysis, we investigated the effect of physical activity interventions on cognitive function in dementia patients, by synthesizing data from 802 patients included in 18 randomized control trials that applied a physical activity intervention with cognitive function as an outcome measure. Post-intervention standardized mean difference (SMD) scores were computed for each study, and combined into pooled effect sizes using random effects meta-analysis. The primary analysis yielded a positive overall effect of physical activity interventions on cognitive function (SMD[95% confidence interval]=0.42[0.23;0.62], p<.01). Secondary analyses revealed that physical activity interventions were equally beneficial in patients with Alzheimer's disease (AD, SMD=0.38[0.09;0.66], p<.01) and in patients with AD or a non-AD dementia diagnosis (SMD=0.47[0.14;0.80], p<.01). Combined (i.e. aerobic and non-aerobic) exercise interventions (SMD=0.59[0.32;0.86], p<.01) and aerobic-only exercise interventions (SMD=0.41[0.05;0.76], p<.05) had a positive effect on cognition, while this association was absent for non-aerobic exercise interventions (SMD=-0.10[-0.38;0.19], p=.51). Finally, we found that interventions offered at both high frequency (SMD=0.33[0.03;0.63], p<.05) and at low frequency (SMD=0.64[0.39;0.89], p<.01) had a positive effect on cognitive function. This meta-analysis suggests that physical activity interventions positively influence cognitive function in patients with dementia. This beneficial effect was independent of the clinical diagnosis and the frequency of the intervention, and was driven by interventions that included aerobic exercise.

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Crossref · 10.1016/j.arr.2015.11.005

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  • Physical activity is a possible approach for managing dementia symptoms and may improve cognition in individuals with a clinical dementia diagnosis, including Alzheimer's disease.

    “PA is also a possible approach for managing the symptoms of dementia, indicating that PA interventions may help to improve cognition in individuals with a clinical dementia diagnosis, including AD (45, 47, 49, 50, 52, 84).”
  • Positive effects in dementia were found for both high-frequency and low-frequency physical activity interventions, defined as averages of 213 and 93 minutes per week, respectively.

    “These positive effects were found for interventions that were both high-frequency and low-frequency PA (defined as an average of 213 minutes per week or 93 minutes per week, respectively)”
  • One meta-analysis of 18 randomized controlled trials from 802 dementia patients reported an overall standardized mean difference of 0.42, with significant effects for Alzheimer's disease and for combined Alzheimer's and non-Alzheimer's dementias.

    “For example, one meta-analysis of 18 RCTs from 802 dementia patients reported an overall standardized mean difference of 0.42; this effect was also significant for individuals with AD (N=8 studies) or in studies that combined AD and non-AD dementias (N=7) (47).”

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Authors
Groot, C., Hooghiemstra, A. M., Raijmakers, P. G. H. M., van Berckel, B. N. M., Scheltens, P., Scherder, E. J. A., van der Flier, W. M., & Ossenkoppele, R.
Affiliations
  • Gemeente Amsterdam (NL)
  • Vrije Universiteit Amsterdam (NL)
  • Amsterdam UMC Location Vrije Universiteit Amsterdam (NL)
Corresponding author
Groot, C.
Venue
Ageing Research Reviews
Publisher
Elsevier BV
Published
2016-01
Volume
25
Pages
13-23
ISSN
1568-1637 (ISSN-L)
OpenAlex
W2177634114
Cited by
616
References
78
Citations by year
2026: 26 · 2025: 32 · 2024: 51 · 2023: 56 · 2022: 71 · 2021: 75 · 2020: 86 · 2019: 84 · 2018: 62 · 2017: 49 · 2016: 23 · 2014: 1
FWCI
6.15
Type
journal article
Language
en
Open access
closed
Locations
  • Ageing Research Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • VU Research Portal (publishedVersion)
  • Pure Amsterdam UMC (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • FP7 People: Marie-Curie Actions (628812)
  • BrightFocus Foundation
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Intensive Care Unit Cognitive Disorders
Keywords
physical activity, dementia, cognitive function, Alzheimer's disease, aerobic exercise, exercise frequency, non-pharmacological treatment, cognitive impairment
MeSH terms
Cognition, Dementia, Humans, Motor Activity, Randomized Controlled Trials as Topic

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