Adaptive restriction rules provide functional and safe stimulation pattern for foot drop correction.
Adaptive restriction rules provide functional and safe stimulation pattern for foot drop correction.
复制标题
自适应限制规则为足下垂矫正提供功能性且安全的刺激模式。
DOI：
10.1046/j.1525-1594.1999.06375.x
复制
发表时间：
1999
影响因子：
2.4
通讯作者：
T. Sinkjær
中科院分区：
文献类型：
--
作者：
Aleksandar Kostov;Morten Hjorslev Hansen;M. Haugland;T. Sinkjær
我们报告了功能性电刺激 (FES) 辅助矫正足下垂的感觉反馈数据处理和控制系统设计方面的进展。在训练自适应逻辑网络（ALN）之前，我们在箱集成神经电图上应用了两种信号净化方法（即优化的低通滤波和小波去噪）。 ALN 生成刺激控制脉冲，该脉冲对应于受损腿部的摆动阶段，此时需要足背屈以提供安全的离地间隙。然而，获得的控制信号在站立阶段包含零星的刺激尖峰，这可能会使受试者崩溃，并且在摆动阶段包含不频繁的中断刺激脉冲，这可能导致不可预测的后果。在本研究中，我们引入了自适应限制规则（ARR），这些规则最初按照先前报告的方式使用，然后在系统使用过程中动态调整。我们的结果表明，ARR 提供了比固定限制规则更安全、更可靠的刺激模式。
We report on our advances in sensory feedback data processing and control system design for functional electrical stimulation (FES) assisted correction of foot drop. We have applied 2 methods of signal purification on the bin integrated electroneurogram (i.e., optimized low pass filtering and wavelet denoising) before training adaptive logic networks (ALN). ALN generated stimulation control pulses, which correspond to the swing phase of the impaired leg when dorsal flexion of the foot is necessary to provide safe ground clearance. However, the obtained control signal contained sporadic stimulation spikes in the stance phase, which can collapse the subject, and infrequent broken stimulation pulses in the swing phase, which can result in unpredictable consequences. In this study, we have introduced adaptive restriction rules (ARR), which are initially used as previously reported and then dynamically adapted during the use of the system. Our results suggest that ARR provide a safer and more reliable stimulation pattern than fixed restriction rules.