A gait stability investigation into FES-assisted paraplegic walking based on the walker tipping index
A gait stability investigation into FES-assisted paraplegic walking based on the walker tipping index
复制标题
基于步行者倾翻指数的 FES 辅助截瘫行走步态稳定性研究
DOI：
10.1088/1741-2560/6/6/066007
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发表时间：
2009-11
影响因子：
4
通讯作者：
Luk, Keith D. K.
中科院分区：
文献类型：
--
作者：
Ming, Dong;Leong, John C. Y.;Bai, Yanru;Liu, Xiuyun;Qi, Hongzhi;Cheng, Longlong;Wan, Baikun;Hu, Yong;Wong, Yatwa;Luk, Keith D. K.
在截瘫运动训练的临床试验中使用的步态结果测量确定了功能电刺激（FES）系统辅助下改善行走功能的有效性。传统的方法主要关注截瘫患者的运动学、动力学或生理变化，无法量化其行走稳定性或实时识别步态不稳定因素。到目前为止，针对FES有效使用的动态步态稳定性的研究还很有限。本文采用助行器倾侧指数（WTI）对fes辅助截瘫患者的步态稳定性进行分析和处理。主要仪器是一种基于多通道应变桥网的专用助行器测功仪系统，该系统固定在助行器的框架上。该系统收集行走过程中患者上肢与步行器之间的手柄反应矢量的力信息；然后将这些信息转换为助行器倾侧指数数据，助行器倾侧指数是评估患者行走稳定性的指标。为了证明WTI在步态分析中的潜在作用，我们对7名接受fes辅助行走训练的截瘫患者和7名正常对照进行了初步临床试验。通过WTI分析，量化不同刺激模式下患者的步态稳定性水平，以及正常行走固定膝关节的对照组。结果显示，fes辅助截瘫组的行走稳定性较对照组差，主要表现在前后平面。该方法从稳定性的角度识别有用的步态信息是可行的，可以进一步应用于fes辅助截瘫行走康复。
The gait outcome measures used in clinical trials of paraplegic locomotor training determine the effectiveness of improved walking function assisted by the functional electrical stimulation (FES) system. Focused on kinematic, kinetic or physiological changes of paraplegic patients, traditional methods cannot quantify the walking stability or identify the unstable factors of gait in real time. Up until now, the published studies on dynamic gait stability for the effective use of FES have been limited. In this paper, the walker tipping index (WTI) was used to analyze and process gait stability in FES-assisted paraplegic walking. The main instrument was a specialized walker dynamometer system based on a multi-channel strain-gauge bridge network fixed on the frame of the walker. This system collected force information for the handle reaction vector between the patient's upper extremities and the walker during the walking process; the information was then converted into walker tipping index data, which is an evaluation indicator of the patient's walking stability. To demonstrate the potential usefulness of WTI in gait analysis, a preliminary clinical trial was conducted with seven paraplegic patients who were undergoing FES-assisted walking training and seven normal control subjects. The gait stability levels were quantified for these patients under different stimulation patterns and controls under normal walking with knee-immobilization through WTI analysis. The results showed that the walking stability in the FES-assisted paraplegic group was worse than that in the control subject group, with the primary concern being in the anterior–posterior plane. This new technique is practical for distinguishing useful gait information from the viewpoint of stability, and may be further applied in FES-assisted paraplegic walking rehabilitation.
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影响因子：
--
作者：
S. Simcox;G. Davis;A. Barriskill;J. Middleton;I. Bruinsma;Michael Duncan;R. Smith
通讯作者：
S. Simcox;G. Davis;A. Barriskill;J. Middleton;I. Bruinsma;Michael Duncan;R. Smith
影响因子：
3.8
作者：
N. Postans;M. Granat
通讯作者：
N. Postans;M. Granat
DOI：
10.1109/iembs.2004.1404366
发表时间：
2004
期刊：
The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
影响因子：
--
作者：
Y. Hu;D. Ming;Y.Z. Wang;Y. Wong;B. Wan;K. Luk;J. Leong
通讯作者：
Y. Hu;D. Ming;Y.Z. Wang;Y. Wong;B. Wan;K. Luk;J. Leong
DOI：
10.1243/0954411001535200
发表时间：
2000-01
期刊：
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
影响因子：
--
作者：
N. Donaldson;C-h Yu
通讯作者：
N. Donaldson;C-h Yu
影响因子：
1.7
作者：
Johnston, TE;Finson, RL;Mulcahey, MJ
通讯作者：
Mulcahey, MJ