Holtmann S, Clarke A, Scherer H
Department of Otorhinolaryngology, University of Munich, Grosshardern Medical Center, Federal Republic of Germany.
Arch Otorhinolaryngol. 1989;246(1):61-4. doi: 10.1007/BF00454137.
A study was performed to determine whether the predominant direction of body sway is influenced by changes of head-to-trunk position. A group of ten patients suffering from acute unilateral vestibular loss was compared with a group of ten healthy subjects. Body sway was assessed by measurement on a posture platform. Center-of-force stabilograms were recorded with the subjects' eyes closed. After a baseline interval in the normal head-to trunk orientation, the head was torsioflexed with respect to the trunk and the locus of the center-of-force further assessed over a defined interval. It was observed that the patient group manifested a systematic translation of the direction of body sway that was associated in a consistent manner with the unilateral deficit. This translation occurred synchronously with head torsioflexion and could also be reproduced when turning the trunk with the head fixed, so that a semicircular canal influence could be excluded. It appears that cervical proprioceptive input to the central vestibular system is responsible for the effect observed.
进行了一项研究以确定身体摆动的主要方向是否受头与躯干位置变化的影响。将一组十名患有急性单侧前庭丧失的患者与一组十名健康受试者进行比较。通过在姿势平台上进行测量来评估身体摆动。在受试者闭眼的情况下记录力中心稳定图。在正常头与躯干方向的基线间隔后，头部相对于躯干进行扭转屈曲，并在规定间隔内进一步评估力中心的轨迹。观察到患者组表现出身体摆动方向的系统性平移，这与单侧缺陷以一致的方式相关。这种平移与头部扭转屈曲同步发生，并且当头部固定而转动躯干时也可以再现，从而可以排除半规管的影响。似乎中央前庭系统的颈部本体感觉输入是观察到的这种效应的原因。
