Relation Between Local Muscular Fatigue and the Electromyographic Signal with Emphasis on Power Spectrum Changes

Article type: Research Article

Authors: Nyland, John^{a; *}

Affiliations: [a] University of Kentucky, Division of Physical Therapy, Lexington, Kentucky

Note: [*] Address reprint requests to John Nyland, MEd, PT, ATe, Division of Physical Therapy, University of Kentucky, Lexington, KY 40506.

Abstract: The relationship between the electromyographic signal and local muscle fatigue is reviewed with focus on the electromyographic power spectrum analysis. The effect of neurogenic factors and peripheral factors, including muscle fiber composition, muscle force level, type of muscle activation, mechanical vascular compromise, muscle architecture and length-tension relationship, and posture on the electromyographic power spectrum signal are discussed. Clinical applications are also discussed.

Keywords: Electromyographic signal, local muscle fatigue, spectral parameters

DOI: 10.3233/IES-1993-3401

Journal: Isokinetics and Exercise Science, vol. 3, no. 4, pp. 171-180, 1993