Contribution of the Vestibular Apparatus to Postural Control when Rising from a Chair
Contribution of the Vestibular Apparatus to Postural Control when Rising from a Chair
复制标题
从椅子起身时前庭装置对姿势控制的贡献
DOI：
10.1080/00016480310000601
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发表时间：
2003
影响因子：
1.4
通讯作者：
K. Kitamura
中科院分区：
文献类型：
--
作者：
T. Tsutsumi;H. Inaoka;Y. Fukuoka;A. Ishida;K. Kitamura
目标——众所周知，从椅子上站起来的日常动作需要对身体的多个关节进行联合角度控制，尤其是俯仰平面内的关节。然而，这种控制的具体实施方式仍然存在争议。本研究的目的是更好地了解当一个人从椅子上站起来时前庭装置对身体和头部姿势控制的贡献。材料和方法——总共对 24 名健康对照者和 38 名患有不同程度前庭功能障碍的患者进行了检查。当受试者睁开或闭上眼睛从椅子上站起来时，电磁运动传感器被用来分析头部和身体的角度控制。结果——我们发现单侧前庭功能障碍导致头部相对于身体的固定，导致头部空间稳定性的丧失，而视觉输入无法补偿这一点。视觉输入似乎确实可以补偿双侧前庭损失，使双侧前庭器官损伤或中枢障碍的患者能够固定头部在空间中的位置。结论——从椅子上站起来的动作通常是由前庭和本体感受输入控制的；头部根据重力参考对齐，以获得稳定的视觉信息。在单侧前庭功能减退的患者中，姿势仍然由这两个输入控制，尽管调整头部的能力有所减弱。对于双侧前庭功能减退或中枢疾病的患者，使用视觉输入来维持头部对齐，尽管它可能不是唯一或主要的稳定力。
Objective—The everyday act of rising from a chair is known to require the combined angular control of a number of the body's joints, especially those within the pitch plane. Precisely how this control is exerted, however, remains controversial. The aim of this study was to obtain a better understanding of the contribution made by the vestibular apparatus to postural control of the body and head when an individual rises from a chair. Material and Methods—A total of 24 healthy controls and 38 patients with varying degrees of vestibular dysfunction were examined. Electromagnetic motion sensors were used to analyze the angular control of the head and body as subjects rose from a chair with their eyes open or closed. Results—We found that unilateral vestibular dysfunction caused fixation of the head with respect to the body, resulting in a loss of spatial stability of the head which was not compensated for by visual input. Visual input did appear to compensate for bilateral vestibular loss, enabling patients with bilateral vestibular apparatus impairment or central disorders to fix the position of their head in space. Conclusion—The act of rising from a chair is normally controlled by vestibular and proprioceptive input; the head is aligned according to the gravitational reference so as to obtain stable visual information. In patients with unilateral vestibular hypofunction, posture is still controlled by these two inputs, although the ability to align the head is diminished. In patients with bilateral vestibular hypofunction or a central disorder, head alignment is maintained using visual input, although it may not be the sole or predominant stabilizing force.
前庭病和年龄对椅子上升过程中头部稳定性的影响。
影响因子：
1.4
作者：
McGibbon,CA;Krebs,DE;Scarborough,DM
通讯作者：
Scarborough,DM
前庭损失对头部和身体扰动反应的头部稳定性的影响。
DOI：
--
发表时间：
1996
期刊：
Journal of vestibular research : equilibrium & orientation.
影响因子：
--
作者：
Shupert,CL;Horak,FB
通讯作者：
Horak,FB