Reliability of muscle-fiber conduction velocity and fractal dimension of surface EMG during isometric contractions

Beretta Piccoli, Matteo and Cescon, Corrado and D'Antona, Giuseppe and Zampella, Cristian and Clijsen, Ron and Barbero, Marco (2016) Reliability of muscle-fiber conduction velocity and fractal dimension of surface EMG during isometric contractions. In: ISEK 2016 Congress 21° Congress of the International Society of Electrophysiology and Kinesiology (ISEK), 05.07.2016-08.07.2016, Chicago, USA.

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Abstract

During isometric constant-force contractions, muscle fiber conduction velocity(CV) decreases, whereas the level of motor unit(MU) synchronization, by the central nervous system increases. Therefore, the evaluation of peripheral aspects of fatigue might be obtained by estimating CV rate of change during an isometric task. As regards central components of muscle fatigue, fractal dimension(FD) is considered a promising sEMG index mostly related to MU synchronization. Studies on FD to estimate its reliability are currently lacking. The aim of this study was to determine the test-retest reliability of CV and FD rate of changes obtained from multichannel surface electromyographic(sEMG) recordings.

Item Type:	Article in conference proceedings or Presentation at a conference (Poster)
Subjects:	Subjects Allied to Medicine > Anatomy, physiology & pathology > Physiology Biological Sciences > Sport & exercise science > Sport conditioning, rehabilitation & therapy
Department/unit:	Dipartimento economia aziendale, sanità e sociale
Depositing User:	Matteo Beretta Piccoli
Date Deposited:	16 Jun 2016 09:43
Last Modified:	24 Aug 2016 13:24
URI:	http://repository.supsi.ch/id/eprint/7420

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