Key result
Endurance training in prepubertal male swimmers was associated with lower resting heart rates and echocardiographic signs of left ventricular volume overload compared to nontrained controls.
Why the study?
Does endurance training induce features of 'athlete's heart' in prepubertal children compared to nontrained controls?
Population
14 prepubertal competitive male swimmers and a group of active but nontrained control boys
Comparison
Competitive swimming (endurance training) vs Active but nontrained control boys
Design
Cross-sectional
Authors
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Supports early LV remodeling from endurance training in prepubertal boys; leaves open causality, persistence, and clinical relevance.
Case-Control
Does endurance training induce features of 'athlete's heart' in prepubertal children compared to nontrained controls?
Endurance training in prepubertal children induces echocardiographic signs of left ventricular volume overload and lower resting heart rates, but these rarely simulate heart disease on routine clinical or ECG examination.
Rowland et al. (1987) conducted a case-control in Athlete's heart. Endurance training (competitive swimming) vs. Active but nontrained control boys was evaluated on Physical examination, ECG and echocardiogram findings. Endurance training in prepubertal male swimmers was associated with lower resting heart rates and echocardiographic signs of left ventricular volume overload compared to nontrained controls.
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