Reliability of neural-network functional electrical stimulation gait-control system

被引：0
|
作者：
K. Y. Tong
M. H. Granat
机构：
[1] University of Strathclyde,Bioengineering Unit
来源：
Medical & Biological Engineering & Computing | 1999年 / 37卷
关键词：
Neural networks; Functional electrical stimulation; Spinal cord injury; Walking;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Functional electrical stimulation (FES) has been used for restoring walking in spinal-cord injured (SCI) persons. Using artificial intelligence (Al), FES controllers have been developed that allow the automatic phasing of stimulation, to replace the function of hand or heel switches. However, there has been no study to evaluate the reliability of these Al systems. Neural networks were used to construct FES controllers to control the timing of stimulation. Different numbers of sensors in the sensor set and different numbers of data points from each sensor were used. Two incomplete-SCI subjects were recruited, and each was tested on three separate occasions. The results show the neural-network controllers can maintain a high accuracy (around 90% for the two- and three-sensor groups and 80% for the onesensor group) over a period of six months. Two or three sensors were sufficient to provide enough information to construct a reliable FES control system, and the number of data points did not have any effect on the reliability of the system.
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收藏
页码：633 / 638
页数：5
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