Does physical activity prevent cognitive decline and dementia?: A systematic review and meta-analysis of longitudinal studies.

ABSTRACT:

Background

By 2050, it has been estimated that approximately one-fifth of the population will be made up of older adults (aged ≥60 years). Old age often comes with cognitive decline and dementia. Physical activity may prevent cognitive decline and dementia.

Methods

We reviewed and synthesised prospective studies into physical activity and cognitive decline, and physical activity and dementia, published until January 2014. Forty-seven cohorts, derived from two previous systematic reviews and an updated database search, were used in the meta-analyses. Included participants were aged ≥40 years, in good health and/or randomly selected from the community. Studies were assessed for methodological quality.

Results

Twenty-one cohorts on physical activity and cognitive decline

SUBMITTER: Blondell SJ 

PROVIDER: S-EPMC4064273 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature