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在研究运动员心脏时,必须掌握其从事何种体育运动、运动强度、运动频率、从事体育运动的时间(?)心脏的形态或功能变化等情况。还得从年龄的增长(?)有无疾病等来考虑对心脏的长期影响。当然还需结合运动时的全身状况进行研究。特别是分析心电图时,如按照病人或一般健康者的评定标准就易产生较大的误差。一、运动对心脏的影响功能变化一般正常人在安静状态下,约相当于心搏出量20(?)的血液分布在肾、骨骼肌、各内脏中。随着运动时心搏出量的增加,流
When studying the heart of an athlete, it is necessary to know what kinds of sports, exercise intensity, frequency of exercise, time (?) The heart is in or out of shape, or function changes. Have to consider the long-term impact on the heart from the growth of age (?) With or without disease. Of course, the combination of exercise when the general condition of the study. Especially in the analysis of ECG, such as in accordance with the evaluation criteria of patients or general health is easy to produce a larger error. First, the impact of exercise on the heart Functional changes in general normal quiet state, about the equivalent of cardiac output of 20 (?) Blood distribution in the kidney, skeletal muscle, the internal organs. As exercise increases the volume of cardiac output, flow