期刊
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
卷 96, 期 6, 页码 740-746出版社
SPRINGER
DOI: 10.1007/s00421-005-0076-6
关键词
exercise; echocardiography; elite runners; running performance; ventricles; cardiac enlargament
Long-term studies on left ventricular (LV) adaptation have not been reported. The echocardiograms of 41 top-class runners (8 males and 6 females sprint-trained, 15 males and 12 females endurance-trained) were recorded at the beginning and after 1, 2, and 3 years of training. A one-way ANOVA and a linear regression analysis were conducted to determine changes and association between performance and LV values. Training resulted in an increase in performance and LV internal diameter at end-diastole (LVIDd) and decreases in end-diastolic interventricular septal wall thickness, and posterior wall thickness (PWTd). There were no significant differences in LV mass and LV ejection fraction (LVEF, %). The changes in PWTd were linked to enlargement of the LV. In athletes with unusual LV dilatation (> 60 mm), LVIDd was related to performance and LVEF was > 50%. Maximal wall thickness was < 13 mm in all athletes. LV adaptations were independent of sex and type of training and related to the initial level of performance. We believe that LV enlargement in elite runners is a physiological adaptation and that the LVIDd is a predictor of running performance.
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