Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles

Using the core-conductor theory, a single fibre action potential (SFAP) can be expressed as the convolution of a biolectrical source and a weight function. In the Dimitrov¿Dimitrova (D¿D) SFAP convolutional model, the first temporal derivative of the intracellular action potential (IAP) is used as t...

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Detalles Bibliográficos
Autores: Rodríguez Falces, Javier, Navallas Irujo, Javier, Gila Useros, Luis, Rodríguez Carreño, Ignacio, Malanda Trigueros, Armando
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2010
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/55566
Acceso en línea:https://hdl.handle.net/2454/55566
Access Level:acceso abierto
Palabra clave:SFAP convolutional model
SFAP rise-time
IAP spatial profile
Core-conductor theory
Needle movement
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spelling Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human musclesRodríguez Falces, JavierNavallas Irujo, JavierGila Useros, LuisRodríguez Carreño, IgnacioMalanda Trigueros, ArmandoSFAP convolutional modelSFAP rise-timeIAP spatial profileCore-conductor theoryNeedle movementUsing the core-conductor theory, a single fibre action potential (SFAP) can be expressed as the convolution of a biolectrical source and a weight function. In the Dimitrov¿Dimitrova (D¿D) SFAP convolutional model, the first temporal derivative of the intracellular action potential (IAP) is used as the source. The present work evaluates the relationship between the SFAP peak-to-peak amplitude (Vpp) and peak-topeak interval (rise-time, RT) at different fibre-to-electrode distances using simulated signals obtained by the D¿D model as well as real recordings. With a single fibre electrode, we recorded 63 sets of consecutive SFAPs from the m. tibialis anterior of four normal subjects. The needle was intentionally moved whilst recording each SFAP set. We used the observed changes in RT and Vpp within each SFAP set as a point of reference with which to evaluate how closely the relationship between RT and Vpp provided by the D¿D model reflects real data. We found that half of the recorded SFAP sets had rise-times higher than those generated by the D¿D model. We also showed the influence of the IAP spatial length on the sensitivity of RT and Vpp with radial distance. The study reveals some inaccuracies in simulated SFAPs whose origin might be related to the assumptions made in the core-conductor theory.This work was supported by the Spanish Ministry of Education and Science under the project SAF2007-65383.ElsevierIngeniería Eléctrica y ElectrónicaIngeniaritza Elektriko eta Elektronikoa Saila2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2454/55566reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/MEC//SAF2007-65383© 2010 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0.https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/555662026-06-17T12:41:47Z
dc.title.none.fl_str_mv Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles
title Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles
spellingShingle Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles
Rodríguez Falces, Javier
SFAP convolutional model
SFAP rise-time
IAP spatial profile
Core-conductor theory
Needle movement
title_short Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles
title_full Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles
title_fullStr Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles
title_full_unstemmed Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles
title_sort Analysis of the relationship between the rise-time and the amplitude of single-fibre potentials in human muscles
dc.creator.none.fl_str_mv Rodríguez Falces, Javier
Navallas Irujo, Javier
Gila Useros, Luis
Rodríguez Carreño, Ignacio
Malanda Trigueros, Armando
author Rodríguez Falces, Javier
author_facet Rodríguez Falces, Javier
Navallas Irujo, Javier
Gila Useros, Luis
Rodríguez Carreño, Ignacio
Malanda Trigueros, Armando
author_role author
author2 Navallas Irujo, Javier
Gila Useros, Luis
Rodríguez Carreño, Ignacio
Malanda Trigueros, Armando
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Eléctrica y Electrónica
Ingeniaritza Elektriko eta Elektronikoa Saila
dc.subject.none.fl_str_mv SFAP convolutional model
SFAP rise-time
IAP spatial profile
Core-conductor theory
Needle movement
topic SFAP convolutional model
SFAP rise-time
IAP spatial profile
Core-conductor theory
Needle movement
description Using the core-conductor theory, a single fibre action potential (SFAP) can be expressed as the convolution of a biolectrical source and a weight function. In the Dimitrov¿Dimitrova (D¿D) SFAP convolutional model, the first temporal derivative of the intracellular action potential (IAP) is used as the source. The present work evaluates the relationship between the SFAP peak-to-peak amplitude (Vpp) and peak-topeak interval (rise-time, RT) at different fibre-to-electrode distances using simulated signals obtained by the D¿D model as well as real recordings. With a single fibre electrode, we recorded 63 sets of consecutive SFAPs from the m. tibialis anterior of four normal subjects. The needle was intentionally moved whilst recording each SFAP set. We used the observed changes in RT and Vpp within each SFAP set as a point of reference with which to evaluate how closely the relationship between RT and Vpp provided by the D¿D model reflects real data. We found that half of the recorded SFAP sets had rise-times higher than those generated by the D¿D model. We also showed the influence of the IAP spatial length on the sensitivity of RT and Vpp with radial distance. The study reveals some inaccuracies in simulated SFAPs whose origin might be related to the assumptions made in the core-conductor theory.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/55566
url https://hdl.handle.net/2454/55566
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MEC//SAF2007-65383
dc.rights.none.fl_str_mv © 2010 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0.
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © 2010 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0.
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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