Meerson F Z, Beresneva Z V
Kardiologiia. 1982 Jan;22(1):85-90.
Echocardiographic investigation of the mass and function of the left ventricle was undertaken on 110 trained to endurance and 100 nontrained young individuals 10 to 30 years of age. It is established that in the nontrained group aged from 10--12 up to 20--30 the mass of the left ventricle increases approximately by 50 g, which is over 70%. Correspondingly the end diastolic volume of the ventricle rises by 50 ml i. e. by 73%, approximately. The end systolic volume of the ventricle is increased only by 28 ml. Training to endurance resulted at the age of 10--12 years after 1 1/2--2 years of training (skiing) in an increase in the absolute mass of the left ventricle by 40 g, i. e. more than 50% as compared to the control group. During the next 10 years the mass of the left ventricle of the heart in the adapted and the nonadapted persons increased from different initial levels at the same rate--an average of 80%. These data are considered in the light of modern conceptions of the mechanism of cardiac hypertrophy.
对110名接受耐力训练的10至30岁年轻人和100名未受过训练的年轻人进行了左心室质量和功能的超声心动图检查。结果表明，在10 - 12岁至20 - 30岁的未受过训练的组中，左心室质量大约增加50克，增幅超过70%。相应地，心室舒张末期容积增加50毫升，即约73%。心室收缩末期容积仅增加28毫升。在10 - 12岁经过1.5 - 2年的耐力训练（滑雪）后，与对照组相比，左心室绝对质量增加了40克，即超过50%。在接下来的10年里，适应训练和未适应训练者的心脏左心室质量从不同的初始水平以相同的速率增加，平均为80%。根据现代关于心脏肥大机制的概念对这些数据进行了分析。
