Vles J S, van Oostenbrugge R, Kingma H, Caberg H, Casaer P
Department of Neurology, University Hospital of Maastricht, University of Limburg, The Netherlands.
Neuropediatrics. 1988 May;19(2):96-100. doi: 10.1055/s-2008-1052409.
Although body posture in pre-term infants is generally studied to describe developmental aspects, no consensus exists in literature about the influence of head position and head position change upon body posture in pre-term infants. In a weekly assessed longitudinal study of 15 healthy pre-term infants we extensively observed and analysed the flexion and extension patterns of the limbs in relation to a "spontaneous" head position turning from 32 to 36 weeks of conceptional age. A significant flexion/extension pattern was only observed with respect to the leg: turning of the head induced extension of the chin leg and flexion of the other leg. This pattern persisted during the total 3 hours observation sessions, occurred at every age and in all states, but rapidly disappeared within maximal 20 seconds after the head-turning. No consequent significant pattern was observed with respect to the other limbs or the various other combinations of limb posture changes analysed. An Asymmetric Tonic Neck Reflex was seen after only 3 percent of the head position changes.
尽管对早产儿身体姿势的研究通常是为了描述发育方面的情况，但关于头部位置及头部位置变化对早产儿身体姿势的影响，文献中尚未达成共识。在一项对15名健康早产儿进行的每周评估纵向研究中，我们广泛观察并分析了从孕龄32周到36周时，与“自发”头部位置转动相关的四肢屈伸模式。仅在腿部观察到了显著的屈伸模式：头部转动会引起颏侧腿伸展，另一侧腿屈曲。这种模式在总共3小时的观察时段内持续存在，在每个年龄段和所有状态下都会出现，但在头部转动后最多20秒内迅速消失。对于分析的其他肢体或肢体姿势变化的各种其他组合，未观察到相应的显著模式。仅在3%的头部位置变化后出现了非对称性紧张性颈反射。
