It has been well established that regular physical activity associates with a number of morphological and functional changes of the heart. Some studies failed to find any echocardiograph difference between athletic and non-athletic groups. The aim of this study was to evaluate Echocardiography differences of heart in swimmers and non athletics in swimmers and non athletics. Two groups selected randomly for this study (each 15 person, 21±3.12 years old),. The first group was swimmers and the second group was non-athlete controls. from M-mode and 2-D used for measurment of Diameters of heart. The results of study have shown that there were significantly in swimmers group than the control group, but, There were no significant differences in mean of end systolic diameter and posterior wall thickness of left ventricle in two groups. The stroke volume and volume of left ventricle of heart in anaerobic athlete with enough background dynamic exercise, like swimmers probably increase as well as.
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