Key result
Leisure exercise ≥4 hours weekly linked to ~15% lower AF risk in women.
Why the study?
Does physical activity reduce the risk of developing atrial fibrillation in middle-aged and elderly women?
Cohort (n=36,513)
Does physical activity reduce the risk of developing atrial fibrillation in middle-aged and elderly women?
Effect estimate: RR 0.85 (95% CI 0.75 to 0.95)
Moderate amounts of physical activity, such as walking or bicycling, are associated with a significantly reduced risk of developing atrial fibrillation in middle-aged and elderly women.
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Supports hypothesis that moderate exercise may lower AF risk in women; extends observational data but leaves causality unproven.
Drca et al. (2015) conducted a cohort in Atrial fibrillation (n=36,513). Physical activity (leisure-time exercise and walking/bicycling) vs. <1 h/week leisure-time exercise or almost never walking/bicycling was evaluated on Development of atrial fibrillation (RR 0.85, 95% CI 0.75 to 0.95). Leisure-time exercise ≥4 h/week was associated with a reduced risk of atrial fibrillation in women compared to <1 h/week (RR 0.85; 95% CI 0.75-0.95).
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