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Interpretation of the Surface Electromyogram in Dynamic Contractions

Farina, Dario

Exercise and Sport Sciences Reviews: July 2006 - Volume 34 - Issue 3 - p 121-127
Articles

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.

An examination of the methods and limitations underlying the analysis of the surface electromyogram recorded during dynamic contractions.

Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Aalborg University, Aalborg, Denmark

Address for correspondence: Dario Farina, Ph.D., Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7 D-3, DK-9220 Aalborg, Denmark (E-mail: df@hst.aau.dk).

Accepted for publication: February 24, 2006.

Associate Editor: Roger M. Enoka, Ph.D.

©2006 The American College of Sports Medicine