Yao Q W, Jakobsson J, Nyman M, Rabaeus H, Till O, Westgren M
Women's Hospital, Zhejiang Medical University, Peoples Republic of China.
Obstet Gynecol. 1990 Feb;75(2):206-9.
The fetal responses to three different intensity levels of vibroacoustic stimulation (mean 92, 103, and 109 dB) were investigated in 275 pregnant women between 32-42 weeks of gestation. A 103-dB and a 109-dB stimulation aroused fetal movements, perceived by the mother, significantly more often than did a 92-dB stimulation (P less than .05 and P less than .01, respectively). Fetal heart rate (FHR) accelerations occurred slightly more often at a 109-dB stimulation than at a 92-dB level, but the difference was not significant. In the second part of the study, the three modes of stimulation were compared under standardized conditions in ten normal patients. The immediate reaction concerning fetal body movements as measured by the mother or the observer and FHR accelerations were the same as described earlier. There was a significant delayed increase of fetal gross body movements after 8 minutes at the 103- and 109-dB stimulation levels. Thus, the fetal response to vibroacoustic stimulation changes with different intensity levels.
对275名妊娠32至42周的孕妇，研究了胎儿对三种不同强度水平的振动声学刺激（平均92、103和109分贝）的反应。与92分贝的刺激相比，103分贝和109分贝的刺激引起母亲感知到的胎儿运动明显更频繁（P分别小于0.05和P小于0.01）。109分贝刺激时胎儿心率（FHR）加速比92分贝水平时略多，但差异不显著。在研究的第二部分，在标准化条件下对十名正常患者的三种刺激模式进行了比较。母亲或观察者测量的关于胎儿身体运动的即时反应以及FHR加速与之前描述的相同。在103分贝和109分贝刺激水平下，8分钟后胎儿整体身体运动有显著的延迟增加。因此，胎儿对振动声学刺激的反应随不同强度水平而变化。
