Kinetics of left ventricular strains and torsion during incremental exercise in healthy subjects: the key role of torsional mechanics for systolic-diastolic coupling.

@article{Doucende2010KineticsOL,
  title={Kinetics of left ventricular strains and torsion during incremental exercise in healthy subjects: the key role of torsional mechanics for systolic-diastolic coupling.},
  author={Gr{\'e}gory Doucende and Iris Schuster and Thomas Rupp and Aliona Startun and Michel Dauzat and Philippe Obert and St{\'e}phane Nottin},
  journal={Circulation. Cardiovascular imaging},
  year={2010},
  volume={3 5},
  pages={586-94}
}
BACKGROUND The dynamics of systolic and diastolic strains and torsional mechanics of the left ventricle (LV) and their relation to diastolic filling never have been evaluated at various exercise intensities. METHODS AND RESULTS Speckle tracking echocardiography was performed in 20 healthy sedentary subjects at rest and during a progressive submaximal exercise test at 20%, 30%, and 40% of maximal aerobic power. LV twist increased progressively with exercise intensity (10.5 ± 3.2 to 15.8 ± 4.5… CONTINUE READING

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