Gagnon R, Patrick J, Foreman J, West R
Am J Obstet Gynecol. 1986 Oct;155(4):848-51. doi: 10.1016/s0002-9378(86)80037-0.
Forty pregnant women between 30 and 42 weeks' gestational age were studied to examine the effects of external sound and vibration on the fetal heart rate. A significant increase in the mean duration and amplitude of the first acceleration after sound stimulus was found when these values were compared with the control values. Conversely the mean time to the first acceleration in the control period was greater than that in the stimulated period. There was a significant increase in the mean duration of fetal heart rate accelerations, the mean amplitude of fetal heart rate accelerations, and the total time spent in accelerations up to 15 minutes after the sound stimulus as compared with the control period. There was no change in the number of accelerations following the sound stimulus compared to control. These data suggest that vibratory acoustic stimuli may influence patterns of fetal heart rate during human pregnancy.
对40名孕周在30至42周的孕妇进行了研究，以检查外部声音和振动对胎儿心率的影响。当将声音刺激后首次加速的平均持续时间和幅度与对照值进行比较时，发现有显著增加。相反，对照期首次加速的平均时间大于刺激期。与对照期相比，声音刺激后15分钟内胎儿心率加速的平均持续时间、胎儿心率加速的平均幅度以及加速所花费的总时间均有显著增加。与对照相比，声音刺激后加速的次数没有变化。这些数据表明，振动声学刺激可能会影响人类孕期胎儿心率模式。
