Title Bėgikų širdies struktūra ir funkcija /
Translation of Title Structure and function of distance runners' heart.
Another Title Structure and function of distance runners’ heart.
Authors Venckūnas, Tomas ; Raugalienė, Rasa ; Jankauskienė, Edita
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Is Part of Medicina. 2005, t. 41, Nr. 8, p. 685-692.. ISSN 1010-660X
Keywords [eng] Running ; Physical endurance ; Adaptation, physiological ; Cardiovascular physiological phenomena
Abstract [eng] Objective. To compare ultra-long distance runners’ heart morphologic and functional parameters at rest with those of long distance runners’ and middle distance runners’. Materials and methods. Standard Doppler, M-mode and 2-D-mode echocardiography was performed at rest to 22 middle, 31 long and 11 ultra-long adult male distance runners. Results. Long and ultra-long distance runners’ left ventricular mass and left ventricular mass index were larger (p<0.05) than that of middle distance runners’ (groups’ means – approximately 288, 305 and 250 g as well as 153, 160 and 130 g/m2, respectively) due to both larger (p<0.05) end-diastolic interventricular wall thickness (10.6, 11.1 and 9.8 mm, respectively) and left ventricular posterior wall thickness (10.7, 11.5 and 10.0 mm, respectively). Ultra-long distance runners’ left ventricular mass and mass index did not differ significantly from long distance runners’ (p>0.05), but end-diastolic posterior wall thickness was higher (p<0.05). Relative left ventricular wall thickness was larger in ultra-long distance runners as compared with middle distance runners (0.402 and 0.362, respectively; p<0.05). Ultra-long distance runners’ right ventricular end-diastolic diameter was significantly larger (p<0.05) than that of middle and long distance runners (groups’ means – 25.8, 20.7 and 21.4 mm, respectively). Right ventricular end-diastolic free wall was thicker in ultralong distance runners as compared with middle distance runners (groups’ means – 6.7 and 5.9 mm, respectively; p<0.05). Diastolic left ventricular function (evaluated as E/A) as well as end-diastolic left ventricular diameter (groups’ mean – 55.5–56.4 mm) did not differ between groups (p>0.05). Conclusions. The hypertrophy of ultra-long (as well as long) distance runners’ myocardium of both ventricles is more pronounced than that of middle distance runners’.
Type Journal article
Language Lithuanian
Publication date 2005