Evaluation of performance fatigability through surface EMG in health and muscle disease: state of the art

Beretta Piccoli, Matteo and Cescon, Corrado and D'Antona, Giuseppe (2020) Evaluation of performance fatigability through surface EMG in health and muscle disease: state of the art. Arab J Basic and Applied Sciences. ISSN 2576-5299

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Abstract

In literature, it is commonly reported that the progress of performance fatigability may be indirectly assessed through the changes in the features of the surface electromyogram (sEMG) signal. In particular, during isometric constant force contractions, changes in the sEMG signal are caused by several physiological factors, such as a decay in muscle fibers conduction velocity (CV), an increase of the degree of synchronization between the firing times of simultaneously active motor units (MUs), by the central nervous system, and a reduction of the recruitment threshold and a modulation of MUs firing rate. Amplitude and spectral parameters may be used to characterize the global contributions to performance fatigability, such as MU control properties and fiber membrane properties, or central and peripheral factors, respectively. In addition, being CV a physiological parameter, its estimation is of marked interest to the study of fatigue both in physiological and in presence of neuromuscular diseases.

Item Type:	Scientific journal article, Newspaper article or Magazine article
Subjects:	Subjects Allied to Medicine > Anatomy, physiology & pathology > Physiology Subjects Allied to Medicine > Anatomy, physiology & pathology > Physiotherapy
Department/unit:	Dipartimento economia aziendale, sanità e sociale > Laboratorio di ricerca in riabilitazione
Depositing User:	Matteo Beretta Piccoli
Date Deposited:	02 Aug 2021 13:13
Last Modified:	02 Aug 2021 13:17
URI:	http://repository.supsi.ch/id/eprint/12488

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