Wilkinson C, Robinson J
Aust N Z J Obstet Gynaecol. 1982 Nov;22(4):212-4. doi: 10.1111/j.1479-828x.1982.tb01447.x.
Fetal breathing movements were observed for periods of approximately 100 minutes in 10 women at 36-42 weeks' gestation. Simultaneous recordings of uterine activity were made using an external tocograph. Fetal breathing movements were present at the onset of 82 Braxton-Hicks' contractions. There was a significant change in the rate of fetal breathing with a trough before the acme of the contraction, followed by a peak as uterine activity decreased. It is suggested that these changes are related to pressure on the fetus during the contraction and probably are unrelated to changes in fetal oxygenation.
对10名妊娠36 - 42周的女性进行了约100分钟的胎儿呼吸运动观察。使用外部宫缩图同时记录子宫活动情况。在82次Braxton-Hicks宫缩开始时出现了胎儿呼吸运动。在宫缩高峰前胎儿呼吸频率有显著变化，出现一个低谷，随后随着子宫活动减弱而出现一个峰值。提示这些变化与宫缩期间对胎儿的压力有关，可能与胎儿氧合的变化无关。
