Propagation velocity measurement : Autocorrelation technique applied to the electromyogram

Muscle fibre conduction velocity is an important measurement in electrophysiology, both in the research laboratory and in clinical practice. It is usually measured by placing electrodes spaced at known distances and estimating the transit time of the action potential. The problem, common to all meth...

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Detalles Bibliográficos
Autores principales: Spinelli, Enrique Mario, Felice, Carmelo José, Mayosky, Miguel Angel, Politti, J. C., Valentinuzzi, Max E.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2001
Materias:
Electrotecnia
Biología
correlation function
Muscle conduction velocity
Needle electromyography
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/138912
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-138912
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Electrotecnia
Biología
correlation function
Muscle conduction velocity
Needle electromyography
spellingShingle Electrotecnia
Biología
correlation function
Muscle conduction velocity
Needle electromyography
Spinelli, Enrique Mario
Felice, Carmelo José
Mayosky, Miguel Angel
Politti, J. C.
Valentinuzzi, Max E.
Propagation velocity measurement : Autocorrelation technique applied to the electromyogram
topic_facet Electrotecnia
Biología
correlation function
Muscle conduction velocity
Needle electromyography
description Muscle fibre conduction velocity is an important measurement in electrophysiology, both in the research laboratory and in clinical practice. It is usually measured by placing electrodes spaced at known distances and estimating the transit time of the action potential. The problem, common to all methods, is the estimation of this time delay. Several measurement procedures, in the time and frequency domains, have been proposed. Time-domain strategies usually require two acquisition channels, whereas some frequency-domain methods can be implemented using a single one. The method described operates in the time domain, making use of the autocorrelation function of the difference signal obtained from two needle electrodes and only one acquisition channel. Experimental results were obtained from the electromyogram of two biceps muscles (two adult male subjects, nine records each) under voluntary contraction, yielding an average of 3.58 m s−1 (SD=0.04 m s−1) and 3.37 m s−1 (SD=0.03 m s−1), respectively. Several tests showed that the proposed method works properly with electromyogram records as short as 0.3 s.
format Articulo
Articulo
author Spinelli, Enrique Mario
Felice, Carmelo José
Mayosky, Miguel Angel
Politti, J. C.
Valentinuzzi, Max E.
author_facet Spinelli, Enrique Mario
Felice, Carmelo José
Mayosky, Miguel Angel
Politti, J. C.
Valentinuzzi, Max E.
author_sort Spinelli, Enrique Mario
title Propagation velocity measurement : Autocorrelation technique applied to the electromyogram
title_short Propagation velocity measurement : Autocorrelation technique applied to the electromyogram
title_full Propagation velocity measurement : Autocorrelation technique applied to the electromyogram
title_fullStr Propagation velocity measurement : Autocorrelation technique applied to the electromyogram
title_full_unstemmed Propagation velocity measurement : Autocorrelation technique applied to the electromyogram
title_sort propagation velocity measurement : autocorrelation technique applied to the electromyogram
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/138912
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AT felicecarmelojose propagationvelocitymeasurementautocorrelationtechniqueappliedtotheelectromyogram
AT mayoskymiguelangel propagationvelocitymeasurementautocorrelationtechniqueappliedtotheelectromyogram
AT polittijc propagationvelocitymeasurementautocorrelationtechniqueappliedtotheelectromyogram
AT valentinuzzimaxe propagationvelocitymeasurementautocorrelationtechniqueappliedtotheelectromyogram
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