Reduction of postural sway by use of a vibrotactile balance prosthesis prototype in subjects with vestibular deficits
Reduction of postural sway by use of a vibrotactile balance prosthesis prototype in subjects with vestibular deficits
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DOI：
10.1177/000348940311200503
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发表时间：
2003-05-01
影响因子：
1.4
通讯作者：
Wall, C
中科院分区：
文献类型：
--
作者：
Kentala, E;Vivas, J;Wall, C
为了评估原型振动触觉平衡假体在动态姿势描记期间保持平衡的有效性，我们通过 Equitest 计算机动态姿势描记 (CDP) 对 6 名单侧或双侧前庭缺陷的受试者进行了研究。使用微机械速率陀螺仪和线性加速度计测量了他们背部小处的前后（AP）摇摆。由此产生的倾斜估计由连接到躯干的振动触觉阵列显示。振动作为对受试者的倾斜反馈。受试者表现通过倾斜表现指数（TPI）进行评估，该指数是倾斜均方根的倒数。我们发现平衡假肢减少了受试者的 AP 摇摆。将未使用平衡假肢的受试者在 CDP 感觉组织测试 (SOTS) 5 和 6 中的结果与使用假肢的结果进行比较。平均 TPI 显着增加 (p
To evaluate the effectiveness of a prototype vibrotactile balance prosthesis in maintaining balance during dynamic posturography, we studied 6 subjects with unilateral or bilateral vestibular deficit by means of Equitest computerized dynamic posturography (CDP). Their anterior-posterior (AP) sway at the small of the back was measured with a micromechanical rate gyroscope and a linear accelerometer. The resulting tilt estimate was displayed by a vibrotactile array attached to the torso. The vibration served as tilt feedback to the subject. Subject performance was evaluated with the tilt performance index (TPI), which is the inverse of the root-mean-square of tilt. We found that the balance prosthesis reduced the subjects' AP sway. The subjects' results without the balance prosthesis on CDP sensory organization tests (SOTS) 5 and 6 were compared to results with the prosthesis. The average TPI increased significantly (p