Long-term unrestrained measurement of stride length and walking velocity utilizing a piezoelectric gyroscope
Long-term unrestrained measurement of stride length and walking velocity utilizing a piezoelectric gyroscope
复制标题
DOI：
10.1109/10.605434
复制
发表时间：
1997-08-01
影响因子：
4.6
通讯作者：
Miyazaki, S
中科院分区：
文献类型：
--
作者：
Miyazaki, S
长期监测步长和步行速度被认为可以为步态障碍患者的治疗决策提供有用的信息。本研究的目的是开发一种具有以下设计标准的设备：重量轻、易于附着、对自然步态模式几乎没有阻碍、足够的内存记录一天以及临床使用的实用性。该原型由压电陀螺仪组成，可检测单腿大腿在矢状面的角速度，以及基于微处理器的最大/最小值与步态周期相关的循环模拟信号的检测器/数据记录器。该装置的准确性在 20 名正常受试者、7 名膝上 (A/K) 截肢者和 10 名偏瘫患者中进行了评估，除了两个特殊情况外，获得了 +/- 15% 范围内的相对准确性。
Long-term monitoring of stride length and walking velocity is considered to provide useful information for making decisions on treatment of patients with gait disabilities, The purpose of this study was to develop a device with the following design criteria: lightweight, easy attachment, little hindrance to the natural gait pattern, sufficient memory to record for one day, and practicality in clinical use, The prototype consists of a piezoelectric gyroscope, which detects angular velocity of the thigh of one leg in the sagittal plane, and a microprocessor-based maximum/minimum detector/data logger of a cyclic analog signal associated with the gait cycle. The accuracy of the device was evaluated in 20 normal subjects, seven above-the-knee (A/K) amputees, and ten hemiplegic patients, and relative accuracy within +/- 15% was obtained, except for two special cases.