Rafla N M, Beazely J M
Royal Liverpool Hospital, U.K.
Eur J Obstet Gynecol Reprod Biol. 1991 Jul 1;40(2):119-22. doi: 10.1016/0028-2243(91)90102-q.
Twenty-one nulliparous women in the last trimester of pregnancy gave their informed verbal consent to undergo an acute exercise test. Fetal umbilical artery velocimetry waveforms were measured to monitor the effect of exercise on fetal umbilical artery blood flow. The mean gestational age was 32 weeks (range 28-37 weeks). The mean exercise intensity was 71% of submaximal exercise (range 67-74%). Maternal heart rate rose significantly (P less than 0.001) from a mean of 83 to 138 beats per min. Following moderate exercise, the systolic over the diastolic ratio (S/D) decreased significantly (P less than 0.001) after 2 and 20 min. This indicates a decrease in umbilical blood flow resistance and an improved placental circulation following exercise in healthy women. We conclude that maternal exercise does not appear to be harmful to the mother or her fetus at this level of exercise intensity in healthy individuals.
21名处于妊娠晚期的未生育女性口头知情同意接受急性运动测试。测量胎儿脐动脉测速波形以监测运动对胎儿脐动脉血流的影响。平均孕周为32周（范围28 - 37周）。平均运动强度为次最大运动的71%（范围67 - 74%）。孕妇心率从平均每分钟83次显著上升至138次（P < 0.001）。适度运动后，2分钟和20分钟时收缩压与舒张压之比（S/D）显著降低（P < 0.001）。这表明健康女性运动后脐血流阻力降低，胎盘循环改善。我们得出结论，在这种运动强度水平下，健康个体的母体运动似乎对母亲及其胎儿无害。
