Harrison L L, Williams A K, Leeper J, Stem J T, Wang L
University of Alabama School of Nursing, USA.
West J Nurs Res. 2000 Nov;22(7):776-92; discussion 792-5. doi: 10.1177/01939450022044755.
The purpose of this study was to examine factors related to vagal tone (VNA) among preterm infants receiving a 10-minute gentle human touch (GHT) intervention three times daily for 10 days. VNA was measured continuously for 10 minutes before, during, and after each 10-minute GHT intervention. Findings indicated that there was a significant relationship between VNA and gestational age, although there were no relationships between VNA and measures of motor activity or behavioral distress. There was no difference in pattern of response to GHT or level of morbidity, average daily weight gain, or behavioral organization among infants with low, moderate, and high baseline VNA levels. There was no difference in VNA comparing infants in the GHT and control groups or during baseline, touch, and posttouch phases for infants in the GHT group. There is a need for further research to examine the usefulness of VNA as a measure of stress vulnerability among preterm infants.
本研究的目的是检查在10天内每天接受3次、每次10分钟轻柔的人际接触（GHT）干预的早产儿中与迷走神经张力（VNA）相关的因素。在每次10分钟的GHT干预之前、期间和之后，连续10分钟测量VNA。研究结果表明，VNA与胎龄之间存在显著关系，尽管VNA与运动活动或行为窘迫指标之间没有关系。基线VNA水平低、中、高的婴儿对GHT的反应模式、发病率、平均每日体重增加或行为组织水平没有差异。比较GHT组和对照组婴儿的VNA，或GHT组婴儿在基线、接触和接触后阶段的VNA，均无差异。有必要进行进一步研究，以检验VNA作为早产儿应激易感性指标的有用性。
