Physical Activity and Stroke Risk: A Meta-Analysis

  title={Physical Activity and Stroke Risk: A Meta-Analysis},
  author={Chong-Do Lee and Aaron R. Folsom and Steven N. Blair},
  journal={Stroke: Journal of the American Heart Association},
Background and Purpose— Whether physical activity reduces stroke risk remains controversial. We used a meta-analysis to examine the overall association between physical activity or cardiorespiratory fitness and stroke incidence or mortality. Methods— We searched MEDLINE from 1966 to 2002 and identified 23 studies (18 cohort and 5 case-control) that met inclusion criteria. We estimated the overall relative risk (RR) of stroke incidence or mortality for highly and moderately active individuals… 

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