Praznikov V P, Pilipenko N V
Biull Eksp Biol Med. 1976 Jan;81(1):14-6.
There are two forms of motor activity of the skeletal muscles at the last stages of internatal ontogenesis, i. e. jerky (jMA) and prolonged (PMA). Vagal regulation of the cardiac activity of the fetus associated with development of temporary hypoxemia took place before and after the JMA and the PMA. JMA and PMA occurred during labour pains when the circulation in the uterus decreased and development of JMA and PMA resulted in the compensation of temporary fetal hypoxemia.
在出生前个体发育的最后阶段，骨骼肌有两种运动活动形式，即急促运动（jMA）和持续运动（PMA）。与暂时性低氧血症发展相关的胎儿心脏活动的迷走神经调节发生在jMA和PMA之前及之后。jMA和PMA在阵痛期间出现，此时子宫内循环减少，jMA和PMA的发展导致胎儿暂时性低氧血症得到代偿。
