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长期生理负荷过重会引起心脏扩大,这是心肌“生理性肥厚”和两个心室“规律性扩张”的结果。负荷过重(压力、容积的)与原发性心肌损害所致疾病(肌原性扩张)而引起的心脏扩大相反,这种“心脏正常增大”是随心脏活动机能范围的扩大而发展的。在14—18岁发育期,耐力训练会引起心脏迅速增大。如把从事耐力训练的青年运动员与成年运动员相比,心脏大小的绝对与相对平均值很接近。虽然,心脏已扩
Long-term physiological overload will cause the heart to expand, which is the result of myocardial “physiological hypertrophy” and two ventricular “regular expansion.” Overloaded (pressure, volume) Contrary to heart enlargement due to diseases caused by primary myocardial damage (myogenic expansion), this “normal heart enlargement” develops as the range of cardiac activity expands . In the 14-18 years of development, endurance training can cause the heart to increase rapidly. For example, the absolute size of the heart is very close to the relative average of young athletes who are endurance trained compared to adult athletes. Although, the heart has expanded