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Physical activity and stroke in British middle aged men
1Department of Public Health and Primary Care, Royal Free Hospital School of Medicine, London.
BMJ (Clinical Research Ed.)
|March 7, 1992
Summary
Regular moderate physical activity significantly lowers stroke risk in men. Vigorous activity offers no additional benefit for stroke prevention and may increase heart attack risk. Encourage moderate activity like walking without restriction.
Area of Science:
- Cardiovascular Health
- Epidemiology
- Preventive Medicine
Background:
- Physical activity is crucial for cardiovascular health.
- Understanding its specific impact on stroke and heart attack risk is essential for public health guidelines.
Purpose of the Study:
- To evaluate the association between physical activity levels and the risk of stroke.
- To determine the overall benefits of physical activity across major cardiovascular events.
Main Methods:
- A prospective study followed 7735 men aged 40-59 for 9.5 years.
- Data collected from general practices across England, Wales, and Scotland.
- Outcomes included fatal and non-fatal strokes and heart attacks.
Main Results:
- Physical activity showed an inverse relationship with stroke risk, independent of other risk factors (p=0.008).
- Vigorous activity was linked to a marginally increased heart attack risk in men without prior cardiovascular disease.
- Men with existing cardiovascular disease engaging in vigorous activity had a slightly higher heart attack risk.
Conclusions:
- Moderate physical activity significantly reduces stroke and heart attack risk in men, irrespective of pre-existing conditions.
- Vigorous activity provided no additional protective effect against stroke.
- Moderate activities like walking and recreational pursuits should be promoted widely.