Montoya R, Dupui P, Pagès B, Bessou P
URA CNRS 649, Laboratoire de Physiologie, Faculté de Médecine de Toulouse, France.
Med Biol Eng Comput. 1994 Jul;32(4):416-20. doi: 10.1007/BF02524694.
A biofeedback gait training system for step length is proposed, adapted to the correction of spatial walking asymmetries by means of a simple, quick and reliable method for daily clinical use. The system is composed of a walkway and a gait analysis device (locometer) measuring the main temporal and distance factors of gait. The step length is imposed on the subject by lighted targets appearing on the walkway, alternately on the right and left side; the subject is asked to place a swinging foot on the lighted target. Feedback to the subject is supplied by direct visual information (the subject looking at the movement and the position of the foot with respect to the lighted target) and an acoustic signal delivered in real time when the length step error is greater than an allowed value. The method is validated on a population of hemiparetic patients who have suffered from a stroke and who have been reeducated with traditional rehabilitation methods. The patients were divided into two groups; one group following a gait training with biofeedback (BFB group) and one group following a gait training without biofeedback (reference group). Preliminary results are presented, showing a significant beneficial effect of the biofeedback method in increasing the step length of paretic limbs and in correcting step-length asymmetry.
提出了一种用于步长的生物反馈步态训练系统，该系统适用于通过一种简单、快速且可靠的方法来纠正日常临床使用中的空间行走不对称性。该系统由一条走道和一个测量步态主要时间和距离因素的步态分析装置（计步器）组成。步长通过走道上交替出现在右侧和左侧的发光目标施加给受试者；要求受试者将摆动的脚放在发光目标上。通过直接视觉信息（受试者观察脚相对于发光目标的运动和位置）以及当步长误差大于允许值时实时发出的声音信号向受试者提供反馈。该方法在一群中风后偏瘫患者中进行了验证，这些患者接受了传统康复方法的再教育。患者被分为两组；一组进行生物反馈步态训练（生物反馈组），一组进行无生物反馈的步态训练（参照组）。给出了初步结果，表明生物反馈方法在增加偏瘫肢体步长和纠正步长不对称方面具有显著的有益效果。
