Author + information
- Baljash Cheema,
- Sumeet Mitter,
- Juliet Ryan,
- Vera Rigolin,
- Jyothy Puthumana and
- James Thomas
Background: Distinguishing pathology from normal structural and functional adaptations to rigorous physical training in elite athletes is a challenge. Deformation analysis (strain) may provide insight into the mechanics of cardiac remodeling with high-intensity training but has not been tested on images obtained at peak exercise.
Methods: 46 elite basketball players underwent comprehensive cardiovascular assessment including two-dimensional Doppler treadmill stress echocardiography (Bruce protocol) with optimal imaging at peak exercise. Speckle-tracking echocardiography was performed at baseline and peak exercise to determine apical 4, apical 2, apical 3, and global longitudinal strain (AP4, AP2, AP3, and GLS, respectively) of the left ventricle (LV) using GE Health Care EchoPac software. Paired student's t-tests were used to compare rest and post-exercise strain.
Results: Mean age was 20.9 years and mean body mass index was 24.3 kg/cm2.
Mean magnitude of post-exercise strain was greater than at rest for AP4, AP2, AP3 and GLS.
Conclusions: Post-exercise strain can be measured with good reproducibility. Significantly greater post-exercise GLS reflects increased myocardial displacement in healthy, elite athletes at high heart rates.
Poster Hall, Hall C
Friday, March 17, 2017, 10:00 a.m.-10:45 a.m.
Session Title: Imaging the Athlete's Heart
Abstract Category: 31. Non Invasive Imaging: Sports and Exercise
Presentation Number: 1119-224
- 2017 American College of Cardiology Foundation