Abstract 1060: Deformation And Torsion Parameters In Endurance Athletes. A 2d Strain Speckle Tracking Study
Background: Rotation and torsion parameter differences between athletes and sedentary people have been shown in several studies.
Objectives: We have evaluated prospectively these parameters in our athlete group comparing them with sedentarian controls.
Methods: 68 men, 38 competitive endurance athletes (42±8 years, HR 52±9bpm) and 30 controls (40±7 years, HR 68±10bpm) were studied prospectively with conventional echocardiography analyzing deformation parameters by speckle tracking technique at Basal (B), Medial (M) and Apical (A) short axis view and apical 4 and 2 chamber view. Longitudinal, radial and circumferential strain and strain rate RT as well as rotation and untwisting at levels B and A were measured. Group differences were measured by Anova.
Results: Left ventricular M mode differences were not found but disparity was observed in left chamber index volumes between both groups being greater in athletes (p<0,0001 in all cases). Basal rotation and untwisting were greater in athletes (6,0±2,8° vs 4,3±2,3° p=0,007)and (70±22 vs 52±18 g/s p=0,06) as well as basal circumferential strain (16,6±5,1% vs 13,1±4,8% p=0,005). Differences were not found at apical level. Global torsion grade (RotB-RotA) was greater in athletes (19,7±7,2 ° vs 15,8±7,3° p=0,03). Radial SR at M level was smaller (1,64±0,43s vs 1,98±0,69s p=0,01). Longitudinal strain was greater in athletes compared with sedentarians (21,2±3,1% vs 19,6±2,7% p=0,05).
Deformation parameters are slightly different in athletes compared with sedentarians.
Ventricular torsion grade is greater in athletes majorly due to more basal rotation.