PMID: 16520144Mar 8, 2006Paper

An approach to surface EMG decomposition based on higher-order cumulants

Computer Methods and Programs in Biomedicine
D Zazula, A Holobar

Abstract

We are addressing a possible approach to the decomposition of surface electromyograms (SEMGs). It is based on higher-order cumulants implemented in a two-step procedure. Firstly, a multivariate version of the w-slice method is applied in order to extract coarse approximations of motor-unit action potentials (MUAPs) out of the measured SEMGs. Secondly, these coarse estimates are refined by modified Newton-Gauss iteration to achieve an optimum fit of the model-based and the observation-based cumulant estimates. All the necessary conditions are derived theoretically and, afterwards, implemented in simulation runs in order to prove the decomposition power of the proposed approach on synthetic SEMGs. The first-norm difference between the original and the decomposed MUAPs, obtained at the signal length of 102400 samples and expressed in percentage of the MUAP amplitude span, yields 5.4% in the noise-free case, 6.0% with a signal-to-noise ratio (SNR) of 10dB, and 6.5% with a SNR of 0 dB.

References

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Citations

Oct 7, 2011·Journal of Neural Engineering·H R MaratebR Merletti
May 24, 2008·Journal of Neurophysiology·Dario FarinaRoger M Enoka
Jan 19, 2013·Medical & Biological Engineering & Computing·Ivan GligorijevićMaarten De Vos
Apr 25, 2014·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Dario FarinaOskar C Aszmann
Mar 17, 2015·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Maoqi Chen, Ping Zhou
Feb 25, 2014·Computers in Biology and Medicine·Daniel SpulákPetr Novotný
Apr 4, 2009·IEEE Transactions on Bio-medical Engineering·Ping ZhouWilliam Z Rymer
Feb 12, 2009·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Ales HolobarDamjan Zazula
Feb 27, 2009·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Ewa Zalewska
Feb 11, 2010·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Ales HolobarDario Farina
Dec 4, 2009·Medical Engineering & Physics·Xinpu ChenDingguo Zhang
Mar 12, 2013·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Vojko GlaserDamjan Zazula
Sep 5, 2014·Journal of Neural Engineering·Mark Ison, Panagiotis Artemiadis
Jul 28, 2018·Journal of Healthcare Engineering·Yong NingJinbao He

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