To develop an advanced muscleu2013computer interface (MCI) based on surface electromyography (EMG) signal, the amplitude estimations of muscle activities, i.e., root mean square (RMS) and mean absolute value (MAV) are widely used as a convenient and accurate input for a recognition system. ...
Sherwood, DE, Nishimura, K (1992) EMG amplitude and spatial assimilation effects in rapid bimanual movement. Res Q Exerc Sport 63: pp. 284-291Sherwood, DE, Nishimura, KM (1992) EMG amplitude and spatial assimilation effects in rapid bimanual movement. Res Q Exerc Sport 63: pp. 284-291...
关键词: Amplitude estimation Elbow Electromyography Filters Maximum likelihood estimation Mechanical engineering Muscles Proportional control Signal to noise ratio Wrist 会议名称: International Conference of the IEEE Engineering in Medicine & Biology Society 会议时间: 1990 ...
Recent advances (multiple channel combination and whitening) have demonstrated significant improvement in EMG amplitude estimation accuracy. The purpose of this study was to investigate the influence of these EMG amplitude advances into EMG-torque estimation. EMG from biceps/triceps muscles and torque ...
EMG峰值/均值、iEMG(integrated EMG),它可以是整段信号的积分,固定时间段的(窗口)积分或者到一个阈值的积分、EMG的RMS、协同收缩比(co-contraction,Leweket al., 2004)、振幅概率密度(Amplitude Probability Distribution Function,在人体功效学常用) etc. 频域分析 与时域相对应的分析,信号频域也是肌电分析常用的方...
In an SEMG recording, a bipolar electrode is placed on the skin surface overlying a muscle of interest. As the muscle contracts, myoelectric activity is revealed as a complex waveform with an amplitude range of about 0-10 mV. Intramuscular ...
title('Single-Sided Amplitude Spectrum of y(t)') xlabel('Frequency (Hz)') ylabel('|Y(f)|') grid on; axis([0,NFFT/2,1.2*min(abs(fy1)),1.2*max(abs(fy1))]); 1. 2. 3. 4. 5. 6. 7. 8. 9. 其仿真如下所示: 图2 EMG随机信号的频谱图 ...
Surface electromyographic (EMG) amplitude from the upper trapezius muscle is widely used as a measure of shoulder-neck load in ergonomic studies. A variety of methods for normalizing EMG amplitude from the upper trapezius (EMGamp(ut)) have been presented in the literature. This impedes meta-analy...
The present study aimed to evaluate the effect of a resistance training program based on the electromyographic fatigue threshold (EMG FT, defined as the highest exercise intensity performed without EMG alterations), on the EMG amplitude (root mean square, RMS) and frequency (median frequency, MF)...
This study evaluates the impact of intraoperative EMG changes on synchronous vocal cord contractility by simultaneous use of continuous intraoperative neuromonitoring (C鈥怚ONM) and accelerometry for registration of actual vocal cord function at a given change of EMG amplitude....