Key result
Competitive athletes demonstrated significant sinus bradycardia and prolongation of the PR interval (mean 0.20 vs 0.18, p<0.005) and QT interval compared to sedentary controls.
Why the study?
Does athletic training alter ECG parameters such as PR, QT, and RR intervals in young Sudanese males compared to sedentary controls?
Cross-Sectional (n=50)
Does athletic training alter ECG parameters such as PR, QT, and RR intervals in young Sudanese males compared to sedentary controls?
Absolute Event Rate: 0.2% vs 0.18%
p-value: p=<0.005
Sudanese athletes, particularly those engaged in dynamic exercise, exhibit significant sinus bradycardia and prolonged PR and QT intervals compared to sedentary controls.
May reflect training-related adaptation in athletes; leaves open causality, clinical relevance, and need for longitudinal or ethnicity-specific data.
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Ahmed et al. (2009) conducted a cross-sectional in Healthy athletes (n=50). Competitive athletic training vs. Sedentary lifestyle (<2 hours exercise a week) was evaluated on Mean PR interval (p=<0.005). Competitive athletes demonstrated significant sinus bradycardia and prolongation of the PR interval (mean 0.20 vs 0.18, p<0.005) and QT interval compared to sedentary controls.
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