Interpretation of the Surface Electromyogram in Dynamic Contractions

This review focuses on methods for extracting information from the surface EMG recorded in dynamic contractions. It examines the techniques, requirements, and limitations associated with detecting the timing of muscle activation, assessing the modulation of signal amplitude, performing EMG spectral analysis, and estimating conduction velocity. The conclusion is that interpretation of the surface EMG in dynamic tasks requires caution.

[1]  P. Bonato From the guest editor - recent advancements in the analysis of dynamic EMG data , 2001, IEEE Engineering in Medicine and Biology Magazine.

[2]  Dario Farina,et al.  A finite element model for describing the effect of muscle shortening on surface EMG , 2006, IEEE Transactions on Biomedical Engineering.

[3]  C. D. De Luca,et al.  Surface myoelectric signal cross-talk among muscles of the leg. , 1988, Electroencephalography and clinical neurophysiology.

[4]  Roberto Merletti,et al.  The extraction of neural strategies from the surface EMG. , 2004, Journal of applied physiology.

[5]  Dario Farina,et al.  Assessment of average muscle fiber conduction velocity from surface EMG signals during fatiguing dynamic contractions , 2004, IEEE Transactions on Biomedical Engineering.

[6]  N. Dimitrova,et al.  Interpretation of EMG changes with fatigue: facts, pitfalls, and fallacies. , 2003, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[7]  D. Farina,et al.  Effect of joint angle on EMG variables in leg and thigh muscles , 2001, IEEE Engineering in Medicine and Biology Magazine.

[8]  E A Clancy,et al.  Estimation and application of EMG amplitude during dynamic contractions. , 2001, IEEE engineering in medicine and biology magazine : the quarterly magazine of the Engineering in Medicine & Biology Society.

[9]  Dario Farina,et al.  Time–frequency analysis and estimation of muscle fiber conduction velocity from surface EMG signals during explosive dynamic contractions , 2005, Journal of Neuroscience Methods.

[10]  D Farina,et al.  Effect of electrode location on EMG signal envelope in leg muscles during gait. , 2007, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[11]  Paolo Bonato,et al.  Time-frequency parameters of the surface myoelectric signal for assessing muscle fatigue during cyclic dynamic contractions , 2001, IEEE Transactions on Biomedical Engineering.

[12]  Knaflitz,et al.  Myoelectric manifestations of fatigue in voluntary and electrically elicited contractions. , 1990, Journal of applied physiology.

[13]  L.H. Lindstrom,et al.  Interpretation of myoelectric power spectra: A model and its applications , 1977, Proceedings of the IEEE.

[14]  D. Winter,et al.  Models of recruitment and rate coding organization in motor-unit pools. , 1993, Journal of neurophysiology.