Myocardial adaptation to short-term high-intensity exercise in highly trained athletes.

Journal Article (Clinical Trial;Journal Article)

We aimed to clarify the myocardial adaptation to short-term high-intensity exercise among trained athletes. We screened 17 participants in the 2004 World Indoor Rowing Championships before and after a 2000-m sprint. Echocardiography included standard measurements and tissue Doppler-derived strain (epsilon), strain rate, and 2-dimensionally derived speckle-tracking imaging for left ventricular (LV) torsion. LV volumes and ejection fraction were unchanged after exercise. There was a reduction in early and an increase in late diastolic filling velocities and a decrease in the flow propagation velocity. Annular systolic velocities, slope of the systolic acceleration, septal and lateral epsilon, and speckle tracking-derived torsion were increased. The increased LV torsion was a result of increased basal and apical rotation. Right ventricular apical epsilon decreased. In conclusion, maximal intensity short-duration exercise was associated with attenuation of LV diastolic function, augmentation of LV systolic function, and a reduction in apical right ventricular contractility.

Full Text

Duke Authors

Cited Authors

  • Neilan, TG; Ton-Nu, T-T; Jassal, DS; Popovic, ZB; Douglas, PS; Halpern, EF; Marshall, JE; Thomas, JD; Picard, MH; Yoerger, DM; Wood, MJ

Published Date

  • October 2006

Published In

Volume / Issue

  • 19 / 10

Start / End Page

  • 1280 - 1285

PubMed ID

  • 17000368

Electronic International Standard Serial Number (EISSN)

  • 1097-6795

Digital Object Identifier (DOI)

  • 10.1016/j.echo.2006.05.001


  • eng

Conference Location

  • United States