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肌肉运动能使肌细胞需氧增加和生成二氧化碳.以提供运动肌肉必须的底物和氧,在达到无氧酵解阈之前维持动脉pH与二氧化碳分压(Pco_2)于静息范围内.妊娠增加心输出量、通气及氧消耗,确切的证据提示,如母体的呼吸和血液动力学调节不能与妊娠相适应,则胎儿的健康与发育将受影响.因此,考虑运动与妊娠的相互作用是适宜的.一、妊娠与母体的心输出量和通气已知正常妇女孕中期的静息心输出量比未孕者增加30～50%;孕末期则不一致.静
Muscle exercise can increase aerobic capacity of myocytes and generate carbon dioxide to provide the substrate and oxygen necessary for exercise muscle, maintaining arterial pH and partial pressure of carbon dioxide (Pco 2) at rest until the anaerobic digestive threshold is reached. Excretion, ventilation and oxygen consumption, the exact evidence suggests that if the mother’s breathing and hemodynamic regulation can not be adapted to pregnancy, then the health and development of the fetus will be affected.Therefore, consider the interaction of exercise and pregnancy is appropriate First, the pregnancy and maternal cardiac output and ventilation It is known that normal women in the second trimester of resting cardiac output than the non-pregnant increased 30 ~ 50%; end of pregnancy is inconsistent.