Exercise interventions for cognitive function in adults older than 50: a systematic review with meta-analysis

British Journal of Sports Medicine - Tập 52 Số 3 - Trang 154-160 - 2018
Joseph M. Northey1,2,3, Nicolas Cherbuin4,5, Kate L. Pumpa1,2,3, Disa J. Smee1,3, Ben Rattray1,2,3
1Discipline of Sport and Exercise Science, Faculty of Health
2UC Research Institute for Sport and Exercise (UCRISE)
3University of Canberra
4Australian National University,
5Centre for Research on Ageing, Health and Wellbeing

Tóm tắt

BackgroundPhysical exercise is seen as a promising intervention to prevent or delay cognitive decline in individuals aged 50 years and older, yet the evidence from reviews is not conclusive.ObjectivesTo determine if physical exercise is effective in improving cognitive function in this population.DesignSystematic review with multilevel meta-analysis.Data sourcesElectronic databases Medline (PubMed), EMBASE (Scopus), PsychINFO and CENTRAL (Cochrane) from inception to November 2016.Eligibility criteriaRandomised controlled trials of physical exercise interventions in community-dwelling adults older than 50 years, with an outcome measure of cognitive function.ResultsThe search returned 12 820 records, of which 39 studies were included in the systematic review. Analysis of 333 dependent effect sizes from 36 studies showed that physical exercise improved cognitive function (0.29; 95% CI 0.17 to 0.41; p<0.01). Interventions of aerobic exercise, resistance training, multicomponent training and tai chi, all had significant point estimates. When exercise prescription was examined, a duration of 45–60 min per session and at least moderate intensity, were associated with benefits to cognition. The results of the meta-analysis were consistent and independent of the cognitive domain tested or the cognitive status of the participants.ConclusionsPhysical exercise improved cognitive function in the over 50s, regardless of the cognitive status of participants. To improve cognitive function, this meta-analysis provides clinicians with evidence to recommend that patients obtain both aerobic and resistance exercise of at least moderate intensity on as many days of the week as feasible, in line with current exercise guidelines.

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British Journal of Sports Medicine

Tập 52 Số 3

154-160

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