Key result
Long-term intensive endurance swimming in prepubertal children increased left ventricular internal diameter (41.6 vs 39.0 mm/m(1/3) SA, p<0.01) and mass, but did not alter diastolic or systolic function.
Why the study?
Does long-term intensive endurance training alter left ventricular structure and diastolic function in prepubertal children?
Population
20 prepubertal children aged 10-11 years
Comparison
Long-term intensive endurance swimming program vs No intensive endurance training
Design
Cross-sectional
Authors
Loading...
Swimming-associated LV enlargement in prepubertal children spares function; leaves open causality, persistence, and need for longitudinal data.
Cross-Sectional (n=20)
No
Does long-term intensive endurance training alter left ventricular structure and diastolic function in prepubertal children?
Absolute Event Rate: 41.6% vs 39%
p-value: p=<0.01
Intensive endurance training in prepubertal children induces physiological cardiac adaptations including resting bradycardia, increased stroke volume, and enlarged left ventricular dimensions, without altering systolic or diastolic function.
Obert et al. (1998) conducted a cross-sectional in Healthy prepubertal children (n=20). Long-term intensive endurance swimming vs. No intensive endurance training (primary school controls) was evaluated on Left ventricular internal diameter (mm/m(1/3) surface area) (p=<0.01). Long-term intensive endurance swimming in prepubertal children increased left ventricular internal diameter (41.6 vs 39.0 mm/m(1/3) SA, p<0.01) and mass, but did not alter diastolic or systolic function.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: