A practical gait analysis system using gyroscopes
A practical gait analysis system using gyroscopes
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DOI：
10.1016/s1350-4533(99)00030-2
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发表时间：
1999-03-01
影响因子：
2.2
通讯作者：
Granat, MH
中科院分区：
文献类型：
--
作者：
Tong, KY;Granat, MH
这项研究调查了使用单轴陀螺仪开发简单的便携式步态分析系统的可能性。将陀螺仪附着在小腿和大腿节段的皮肤表面上，并记录每个节段的角速度。节段倾斜度和膝部角度源自节段角速度。来自运动分析系统的角信号用于评估角速度和来自陀螺仪的衍生信号。这些信号之间存在良好的相关性。当进行转弯时，节段倾斜度和膝部角度的信号发生漂移。使用两种方法来解决这个问题：自动重置系统以重新初始化每个步态周期中的角度，以及高通滤波。他们都成功地纠正了这一偏差。小腿节上的单个陀螺仪可以提供有关节段倾斜范围、节奏、步数以及步幅和步行速度估计的信息。 (C) 1999 年 IPEM。由爱思唯尔科学有限公司出版。保留所有权利。
This study investigated the possibility of using uni-axial gyroscopes to develop a simple portable gait analysis system. Gyroscopes were attached on the skin surface of the shank and thigh segments and the angular velocity for each segment was recorded in each segment. Segment inclinations and knee angle were derived from segment angular velocities. The angular signals from a motion analysis system were used to evaluate the angular velocities and the derived signals from the gyroscopes. There was a good correlation between these signals. When performing a turn the signals of segment inclination and knee angle drifted. Two methods were used to solve this: automatically resetting the system to re-initialise the angle in each gait cycle, and high-pass filtering. They both successfully corrected this drift. A single gyroscope on the shank segment could provide information on segment inclination range, cadence, number of steps, and an estimation of stride length and walking speed. (C) 1999 IPEM. Published by Elsevier Science Ltd. All rights reserved.