Marchant Simon, Michael Shona, Milner Laura, Tang Kit-Tzu
Medical Physics & Engineering, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
Faculty of Life Sciences & Medicine, King's College London, London, UK.
J Rehabil Assist Technol Eng. 2019 Jul 19;6:2055668319859142. doi: 10.1177/2055668319859142. eCollection 2019 Jan-Dec.
Functional electrical stimulation uses clinician-set parameters to modify stimulation. This study aimed to investigate whether timing parameters in the ODFS Pace functional electrical stimulation device have an effect on the gait of the general population of functional electrical stimulation users who have a foot drop.
Twelve functional electrical stimulation users with foot drop resulting from upper motor neurone disorders were recruited from the functional electrical stimulation Service in Leeds, UK. A crossover trial design was used, comparing adjusted values of rising ramp, delay and extension. Instrumented gait analysis was carried out to measure ankle dorsiflexion during the swing phase of gait, foot clearance from the ground, and speed of ankle plantarflexion at initial contact. The effect of timing parameters on gait kinematics was studied.
No statistically significant effects on the measured parts of gait were found for any of the timing parameters. Trends were identified in average mid-swing ground clearance and dorsiflexion associated with the delay and rising ramp timing parameters.
Further work in this area should use larger numbers of participants. Based on these results, the effects of ramping and delay would be of particular interest for further study.
功能性电刺激使用临床医生设定的参数来调整刺激。本研究旨在调查ODFS Pace功能性电刺激装置中的定时参数是否会对患有足下垂的功能性电刺激普通用户的步态产生影响。
从英国利兹的功能性电刺激服务中心招募了12名因上运动神经元疾病导致足下垂的功能性电刺激用户。采用交叉试验设计，比较上升斜坡、延迟和伸展的调整值。进行了仪器化步态分析，以测量步态摆动期的踝关节背屈、脚离地面的间隙以及初始接触时踝关节跖屈的速度。研究了定时参数对步态运动学的影响。
未发现任何定时参数对所测量的步态部分有统计学上的显著影响。在平均摆动中期地面间隙和与延迟及上升斜坡定时参数相关的背屈方面发现了趋势。
该领域的进一步研究应使用更多的参与者。基于这些结果，斜坡和延迟的影响将是进一步研究的特别关注点。
