Abstract P106: Physical Activity and Atrial Fibrillation in NHANES III
Background: The impact of physical activity (PA) on the risk of atrial fibrillation (AF) is complex and controversial. The goal of this study was to examine the cross-sectional relationships between PA and AF in the Third National Health and Nutrition Examination Survey (NHANES III).
Methods: Self-reported type and level of PA was evaluated in 19,620 NHANES III participants (mean age 47.3±20.7y; 47% men; 42.0% non-Hispanic white, 27.6% non-Hispanic black, 26.6% Hispanics). We defined prevalent AF via ECG or by the presence of an irregular radial pulse palpated during physical examination in those excluded from ECG examination (suspected AF was an exclusion criteria for ECG). Logistic regression was adjusted for demographics (age, sex, and race), history of cardiovascular disease (heart attack, stroke and heart failure), and cardiovascular risk factors (diabetes, hypertension, hypercholesterolemia, and smoking).
Results: Presumed AF was found in 1191 participant (6.07%). AF prevalence was higher in participants who felt being less active (n=365, 8.2%) as compared to those who felt the same (n=497, 5.5%) or more active (n=329, 5.4%) than most men/women of the same age (Chi square P<0.0001). Feeling of being more active compared with most men/women of the same age was associated with a lower rate of AF (OR 0.78; 95%CI 0.72-0.84; P<0.0001). However, feeling of being more active compared with ten years ago was not associated with AF (OR 1.01; 95%CI 0.91-1.12); P=0.888). Doing gardening or yard work was associated with lower prevalence of AF (OR 0.58; 95%CI 0.51-0.66; P<0.0001), whereas running or jogging was associated with higher AF prevalence (OR 1.27; 95% 1.05-1.53; P=0.013). Bicycling, swimming, aerobics, dancing, calisthenics, and weight lifting did not have a significant association with AF. No interaction of PA with age, sex, or race was observed.
Conclusion: Low-intensity leisure PA and high perceived personal PA compared to age/sex matched peers are associated with lower prevalence of AF in a large sample of the adult United States population. These results could have potential implications on the types of physical activity recommended for individuals at risk of AF.
Author Disclosures: L.G. Tereshchenko: None. A. Shah: None. E.Z. Soliman: None.
- © 2015 by American Heart Association, Inc.