Maximal oxygen uptake in trained athletes was strongly correlated with resting echocardiographic parameters, including left ventricular end-diastolic diameter (r=0.92; P<0.001) and mass (r=0.60; P<0.001).
Cross-Sectional (n=59)
Does the type of sport practiced correlate with specific resting echocardiographic parameters and maximal oxygen uptake?
Maximal oxygen uptake in athletes is strongly correlated with resting echocardiographic parameters such as left ventricular end-diastolic diameter and mass, with specific adaptations depending on the sport practiced.
Estimación del efecto: r=0.92
valor p: p=<0.001
BACKGROUND: Improvement to maximal oxygen uptake is mainly due to myocardial adaptations brought about by physical training. As a consequence, the athlete's heart echocardiographic modifications associated with these adaptations are already well-known. We studied the relationships between maximal oxygen uptake (ml/min) and resting echocardiographic patterns in three athlete groups. METHODS: Tumbling (n=16), canoeing (n=12), cycling (n=12) and untrained (n=19) participants performed clinical examination and an echocardiogram. Trained groups performed a maximal graded exercise test on a cycle ergometer with gas exchange analysis. RESULTS: Sport-specific cardiac hypertrophy was observed. No significant echocardiographic difference was noted between untrained and tumbling participants. Canoeists showed higher end-diastolic thickness of the interventricular septum (P<0.001) and left ventricle mass (P<0.05) than untrained and higher posterior wall thickness (P<0.001) and than untrained and tumbling participants. In comparison between untrained, tumbling and cycling participants, left ventricular end-diastolic diameter (P<0.001) and left ventricular mass (P<0.001) was higher in cyclists. In trained subjects studied as a global group, the main linear correlation with maximal oxygen uptake concerned left ventricular end-diastolic diameter (r=0.92; P<0.001), left ventricular mass (r=0.60; P<0.001) and to a lesser extent aortic (r=0.39; P<0.01) and left atrium (r=0.36; P<0.05) diameters and E (r=0.38; P<0.05) and A (r=-0.33; P<0.05) Doppler peak velocities. Each trained group showed specific correlations between echocardiographic parameters and absolute maximal oxygen uptake. No further correlation was noted with left ventricular end-diastolic diameter or left ventricle mass when each group was studied individually. CONCLUSIONS: In athletes, maximal oxygen uptake is partly linked to some resting echocardiographic parameters. Specific relationships between maximal oxygen uptake and some echocardiographic parameters in relation to the sport practised are also observed.
Barbier et al. (Tue,) conducted a cross-sectional in Healthy athletes and untrained participants (n=59). Sports-specific training (tumbling, canoeing, cycling) vs. Untrained participants was evaluated on Relationships between maximal oxygen uptake and resting echocardiographic patterns (r=0.92, p=<0.001). Maximal oxygen uptake in trained athletes was strongly correlated with resting echocardiographic parameters, including left ventricular end-diastolic diameter (r=0.92; P<0.001) and mass (r=0.60; P<0.001).
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