青年女子经过长期系统的健身锻炼活动,自身的心肺功能和血红蛋白的含量提高,糖元和其他营养物质储备增加,利用营养物质和氧的能力增强,有利于将来适应孕期一系列的生理变化和供给胚胎更多的氧和营养物质,保证胎儿的正常生长和发育,减缓妊娠期间孕妇的不良症状。健身活动还使女子的肌纤维增粗,肌力增强,骨质增厚,骨中钙磷储备增加,骨盆增大,将有利于胎儿的正常发育和分娩。钙磷的储备增加,是将来胎儿骨骼和牙齿生长发育良好的物质基础。 通过健身锻炼,可改善神经、体液系统的调节功能,使全身各器官、系统之间更有效地协调工作, After long-term systematic fitness exercise, young women have increased their cardiopulmonary function and hemoglobin content, increased glycogen and other nutrients, increased their ability to use nutrients and oxygen, and are conducive to adapt to a series of physiological changes during pregnancy and supply Embryos more oxygen and nutrients to ensure normal fetal growth and development, slow down pregnant women during pregnancy adverse symptoms. Fitness activities also make women’s muscle fiber thickening, muscle strength, bone thickening, bone calcium and phosphorus reserves increase, the pelvis increases, will be conducive to the normal development and delivery of the fetus. Increased reserves of calcium and phosphorus, the future fetal bones and teeth growth and development of a good material foundation. Through fitness exercises, can improve the nerve, body fluid system regulation, so that the body organs, systems more effectively coordinate work,