Results The simulation experiments show that cardiac sympathetic activities, cardiac oxygen consumption and myocardiac contractility increased during hypercapnia hypoxia.
结果低氧高碳酸血症条件下，心交感神经传出冲动发放频率明显增加，心肌耗氧量增加，心肌收缩能力增强。
After aerobic training, the contractility of left ventricles is increased. Therefore, the stroke volume is increased.
有氧训练能增加左心室之收缩能力，因此能增加心缩排血量。
After aerobic training, the contractility of left ventricles is increased. Therefore, the stroke volume is increased.
有氧训练能增加左心室之收缩能力，因此能增加心缩排血量。
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