Lateral Swing Support System for Parkinsonism patients with Freezing of Gait.
Lateral Swing Support System for Parkinsonism patients with Freezing of Gait.
复制标题
用于冻结步态的帕金森病患者的横向摆动支持系统。
DOI：
10.1109/sii46433.2020.9025882
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发表时间：
2019
影响因子：
--
通讯作者：
Yoshiyuki Sankai
中科院分区：
文献类型：
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作者：
Akira Uehara ; Hiroaki Kawamoto ; Hisamasa Imai ; Makoto Shirai ; Masatomi Sone ; Sachiko Noda ; Shigeto Sato ; Nobutaka Hattori ; Yoshiyuki Sankai
步态冻结（FOG）是与帕金森症相关的典型运动障碍之一，被描述为尽管试图行走但无法移动脚。跌倒的恐惧和FOG的其他症状可能会让患者感到痛苦。考虑到传统的外部暗示和物理治疗，患有FOG的帕金森病患者有必要进行横向和有节奏的摆动身体。本研究的目的是开发一种可穿戴系统，可以帮助节奏和横向摆动，并验证该系统在防止FOG的性能进行步态实验帕金森病患者。为了开发该系统，我们模拟了基于帕金森病特征的站立位横向摆动，并定义了该系统的机制和适当的力配置。腰部后部的动力装置通过额状面中的连杆将循环力传递到胸部。对患有FOG的帕金森病患者进行步态实验，以确认旋转持续时间和步数的减少。结果表明，该系统的周期性助力与步态周期协调一致，转弯持续时间和步数减少了一半。此外，预FOG，即，短暂的小步步态，在不使用系统的情况下转弯时发生，而在使用系统期间和之后立即发生。这些结果表明，开发的系统是有效的，在防止FOG的发生，通过提供横向和周期性的力量，以上身。
Freezing of gait (FOG) is one of the typical locomotion disorders associated with Parkinsonism, and is described as the inability to move the feet despite an attempt to walk. The fear of falling over and other symptoms of FOG can be distressing to patients. Considering conventional external cues and physical therapy, it is necessary for Parkinsonism patients suffering from FOG to swing the body laterally and rhythmically. The purpose of this study is to develop a wearable system that can assist rhythmical and lateral swing, and to validate the performance of the system in preventing FOG by conducting a gait experiment on a Parkinsonism patient. To develop this system, we simulated lateral swing in the standing position based on features of Parkinsonism and defined a mechanism and appropriate force configurations for the system. A power unit at the back of the waist transmits a cyclic force to the chest through a link in the frontal plane. A gait experiment was performed on a Parkinsonism patient with FOG to confirm the reduction in duration time and number of steps of turning. The result showed that the cyclic assistance of the system and gait cycle were harmonized, and the developed system decreased duration time and number of steps during turning by half. In addition, Pre-FOG, i.e., transient small stepping gait, occurred when turning without using the system, while it did not occur during and immediately after the use of the system. These results suggest that the developed system is effective in preventing occurrences of FOG by providing lateral and cyclic force to the upper body.