摘要
针对现有人体运动速度模型的不足,主要研究了在不同速度模式下的加速度信息与步态变化规律,提取了其中最能够反映运动速度的特征参数。20名年轻男性志愿者分别以3 km/h、4 km/h、5 km/h、6 km/h的速度模式在跑步机上行走,分别考察了各个速度模式下加速度最大值、最小值、均方根、峰谷值、步频、支撑时间、摆动时间等与速度的关系。实验结果表明:在综合分析各个参数的变异系数、可操作性、相关系数性后,最终确定步频、均方根、峰谷值可用于估测行走过程中的实时速度,为计步器与能耗仪的开发提供基础理论支撑。
In view of the existing human body velocity of movement model＇s insufficiency,it was mainly studied which characteristic parameter of acceleration information and the gait change rule can reflect the velocity of movement under the different speed pattern.20 young masculine volunteers were recruited,the characteristic parameters which including the maximum value,the minimum value,the root-mean-square,the valley value,step frequency,the support time and the duration of oscillation were obtained while walking speed at 3 km/h,4 km/h,5 km/h,the 6 km/h in jogs machine on walks.The experimental result indicates that the step frequency,the root-mean-square,the valley value can estimate the walking speeds in real-time,after the integration analysis of correlation coefficient,operability and the coefficient of variation of every parameter.All of conclusion can offer basic theoretical support for the development of pedometer and the instrument of specific power consumption.
出处
《机电工程》
CAS
2011年第1期42-46,共5页
Journal of Mechanical & Electrical Engineering
关键词
加速度
步态
特征参数
acceleration
gait
characteristic parameters
