Key result
High-level cycling was associated with lower apical radial strain (42.7% vs 52.2%, P<0.05) and lower left ventricular torsion (6.0 vs 9.2 degrees, P<0.01) compared to sedentary controls.
Why the study?
Does high-level endurance training alter left ventricular normal and shear strains at rest compared to a sedentary lifestyle?
Population
39 males, comprising 16 elite cyclists and 23 sedentary controls
Comparison
High-level endurance training (elite cycling) vs Sedentary lifestyle
Design
Cross-sectional
Authors
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Findings support benign mechanical adaptations in endurance athletes; leaves open long-term functional implications requiring longitudinal studies.
Cross-Sectional (n=39)
Does high-level endurance training alter left ventricular normal and shear strains at rest compared to a sedentary lifestyle?
Absolute Event Rate: 42.7% vs 52.2%
p-value: p=<0.05
Athlete's heart exhibits specific resting mechanical adaptations, including lower apical strain and LV torsion, without changes in global systolic or diastolic function.
Nottin et al. (2008) conducted a cross-sectional in Athlete's heart (n=39). High-level cycling vs. Sedentary controls was evaluated on Apical radial strain (p=<0.05). High-level cycling was associated with lower apical radial strain (42.7% vs 52.2%, P<0.05) and lower left ventricular torsion (6.0 vs 9.2 degrees, P<0.01) compared to sedentary controls.
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