Bobby R. Alford Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, United States.
Gait Posture. 2011 Feb;33(2):211-3. doi: 10.1016/j.gaitpost.2010.11.007. Epub 2010 Dec 4.
The goal of this study was to determine if parameters of gait are related to the path integration deficits in some people with vestibular disorders. We tested normals, and two groups of vestibularly impaired people, with unilateral benign paroxysmal positional vertigo and with unilateral weakness. Each group had 20 subjects. They walked straight ahead for 7.62 m, with eyes open or closed, to the beat of a metronome at 60 beats/min, 120 beats/min and 176 beats/min. When adjusted for age and sex, normals veered significantly less and walked significantly further before veering than the unilateral weakness group; all groups veered significantly less at 120 beats/min than the slower or faster cadences. Older patients walked slightly but significantly slower than younger patients at the faster speeds. Step length did not differ among diagnostic groups. These data confirm the involvement of vestibular function in path integration, suggest a differentiation by type of vestibular impairment, and suggest some differences by cadence.
本研究旨在确定步态参数是否与某些前庭障碍患者的路径整合缺陷有关。我们测试了正常人和两组前庭功能受损的人，一组是单侧良性阵发性位置性眩晕，另一组是单侧肌无力。每组有 20 名受试者。他们在节拍器的节拍为 60 次/分钟、120 次/分钟和 176 次/分钟的情况下，睁眼或闭眼，直走 7.62 米。当按年龄和性别调整后，正常组明显比单侧肌无力组偏离得更少，走得更远才偏离；所有组在 120 次/分钟时偏离得明显小于较慢或较快的步速。在较快的速度下，年长的患者比年轻的患者行走速度稍慢但差异显著。步长在诊断组之间没有差异。这些数据证实了前庭功能在路径整合中的作用，提示了不同类型的前庭障碍的差异，并提示了不同步速的差异。
