Correlation of myoelectric activity and muscle force during selected cat treadmill locomotion.
Correlation of myoelectric activity and muscle force during selected cat treadmill locomotion.
复制标题
选定的猫跑步机运动期间肌电活动和肌肉力量的相关性。
DOI：
10.1016/0021-9290(83)90079-9
复制
发表时间：
1983
影响因子：
2.4
通讯作者：
Hager,CL
中科院分区：
文献类型：
--
作者：
Sherif,MH;Gregor,RJ;Liu,LM;Roy,RR;Hager,CL
本研究的目的是将猫内侧腓肠肌（MG）在无限制的跑步机运动过程中产生的力与相应的肌电信号（MES）相关联。对0.67 ms-1和2.24 ms-1跑台速度下获得的记录进行基于自回归积分移动平均（ARIMA）过程的干预分析。结果表明，在一个单一的步进周期MG肌电活动的模式可以分为两个部分。活动的主要爆发（E1爆发）发生在足部接触之前，代表能量积累，与肌腱处监测的MG力的主要部分相关。在站立时，第二次爆发的活动描绘了一个几乎临界阻尼二阶系统，并负责观察到的残余张力。因此，如果考虑到电响应和机械响应之间的相位差，则可以将体内力与MES联系起来。
The purpose of this investigation was to associate the force produced by the cat medial gastrocnemius (MG) during unrestrained treadmill locomotion with the corresponding myoelectric signals (MES's). An intervention analysis based on an autoregressive-integrated moving average (ARIMA) process was performed on records obtained at treadmill speeds of 0.67 ms−1and 2.24 ms−1. Results indicate that the pattern of MG myoelectric activity during a single step cycle may be divided into two parts. The primary burst (E1burst) of activity occurs before foot contact and represents an energy build up which is related to a major part of the MG force monitored at the tendon. During stance, a second burst of activity is depicted by an almost critically damped second order system, and is responsible for the residual tension observed. Thusin vivoforces can be linked to MES's provided that phase differences between electrical and mechanical responses are taken into account.