问：产力主要是什么决定的？孕期没有怎么运动，散步也很少，走几步就很累有点喘，这种情况会不会一定产力不足？还是只有生的时候才知道？
Q: What mainly determines the uterine action? Would it be lack of uterine action if neither exercising nor walking, even gasping for air while walk a few steps? Or would it only be noticed when laboring?
答：产力是完成顺产的主要因素，产力包括：其一，子宫收缩力，不是说人要有多大力气，子宫收缩力才会强。只要子宫发育正常就没有问题，跟人自身的力气没有关系。其二是腹壁肌及膈肌收缩力（统称腹压），是宫口开全后要把小孩生出来用的力气，这个是可以通过适当的锻炼如拉玛泽呼吸，孕期瑜伽等可以加强的，但只是产力的一个方面。其三是肛提肌的收缩力，这个力量是分娩时帮助胎儿旋转出来的力量，也不是自身可以控制的。所以，平时少运动只是使用第二部分力量的时候会有所欠缺，但并不是主要的，也是可以顺产的。
A: Uterine action is the main factor for spontaneous vaginal delivery, including: first, the uterine contraction, it has no relationship with the strength of each individual but normal uterine development defines. Second, the abdominal wall muscle and diaphragm contractility (abdominal pressure), refers to the strength to push the baby out when cervix is fully dilated, which can be reinforced by practising Lamaze breathing method and pregnancy Yoga appropriately. Third, levator ani contractility, this is the strength for rotating the baby out through the birth canal, which is also not self-controlled. Therefore, exercising is not the key for delivery, pregnant women can conduct nature delivery by only resorted to abdominal pressure even too little exercise daily.
以上就是对“产力主要是什么决定的？”的介绍，如果您还有任何的疑问，可以在线咨询我们的医生，或拨打020-36 663 663。
The above is the introduction of "What mainly determines the uterine action? " if you have any question, please consult with our specialist online. TEL：020-36 663 663
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