Hirokawa S, Matsumura K
Med Biol Eng Comput. 1989 Jan;27(1):8-13. doi: 10.1007/BF02442163.
A biofeedback gait-training system has been developed which can deal with the gait problems of all subjects in any phase of rehabilitation: measurement, analysis, training and/or evaluation. The system is composed of a measuring walkway and a training walker. The walkway can measure all the temporal and distance factors of gait. The walker, with two parallel grasping bars and a CRT monitor, moves automatically with the aid of servo-motors. The system provides visual feedback for distance factors of gait and audio feedback for temporal factors. During the single-support phase the desired foot position for the next step and the supporting foot position are displayed on the CRT. The actual position of the foot placement is then overlaid for the double support duration that follows. A trainee learns to place the foot in such a way as to overlap the desired with the actual foot stamps on the CRT. The desired temporal factors are provided by buzzer tones. A trainee tries to shorten or elongate the duration of the respective phase of the gait cycle in accordance with the tone. Some experiments on normal subjects and on some with degenerative knee joints verified that the biofeedback signals were utilised effectively and that the walker was of value for improving pathological gait.
已开发出一种生物反馈步态训练系统，该系统可处理康复任何阶段所有受试者的步态问题：测量、分析、训练和/或评估。该系统由一条测量步道和一台训练步行器组成。步道可测量步态的所有时间和距离因素。步行器带有两个平行的扶手和一个阴极射线管显示器，借助伺服电机自动移动。该系统为步态的距离因素提供视觉反馈，为时间因素提供音频反馈。在单支撑阶段，下一步的期望足部位置和支撑足部位置会显示在阴极射线管上。然后在随后的双支撑期间叠加足部放置的实际位置。受训者学习以这样一种方式放置足部，使期望的足部印记与阴极射线管上的实际足部印记重叠。期望的时间因素由蜂鸣音提供。受训者根据声音尝试缩短或延长步态周期各个阶段的持续时间。对正常受试者和一些患有退行性膝关节疾病的受试者进行的一些实验证实，生物反馈信号得到了有效利用，并且该步行器对于改善病理性步态具有价值。
