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Characteristics of Tetanic Force Produced by the Sternomastoid Muscle of the Rat

The sternomastoid (SM) muscle plays an important role in supporting breathing. It also has unique anatomical advantages that allow its wide use in head and neck tissue reconstruction and muscle reinnervation. However, little is known about its contractile properties. The experiments were run on rats...

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Detalles Bibliográficos
Autores principales: Sobotka, Stanislaw, Mu, Liancai
Formato: Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2875700/
https://www.ncbi.nlm.nih.gov/pubmed/20508813
http://dx.doi.org/10.1155/2010/194984
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author Sobotka, Stanislaw
Mu, Liancai
author_facet Sobotka, Stanislaw
Mu, Liancai
author_sort Sobotka, Stanislaw
collection PubMed
description The sternomastoid (SM) muscle plays an important role in supporting breathing. It also has unique anatomical advantages that allow its wide use in head and neck tissue reconstruction and muscle reinnervation. However, little is known about its contractile properties. The experiments were run on rats and designed to determine in vivo the relationship between muscle force (active muscle contraction to electrical stimulation) with passive tension (passive force changing muscle length) and two parameters (intensity and frequency) of electrical stimulation. The threshold current for initiating noticeable muscle contraction was 0.03 mA. Maximal muscle force (0.94 N) was produced by using moderate muscle length/tension (28 mm/0.08 N), 0.2 mA stimulation current, and 150 Hz stimulation frequency. These data are important not only to better understand the contractile properties of the rat SM muscle, but also to provide normative values which are critical to reliably assess the extent of functional recovery following muscle reinnervation.
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spelling pubmed-28757002010-05-27 Characteristics of Tetanic Force Produced by the Sternomastoid Muscle of the Rat Sobotka, Stanislaw Mu, Liancai J Biomed Biotechnol Research Article The sternomastoid (SM) muscle plays an important role in supporting breathing. It also has unique anatomical advantages that allow its wide use in head and neck tissue reconstruction and muscle reinnervation. However, little is known about its contractile properties. The experiments were run on rats and designed to determine in vivo the relationship between muscle force (active muscle contraction to electrical stimulation) with passive tension (passive force changing muscle length) and two parameters (intensity and frequency) of electrical stimulation. The threshold current for initiating noticeable muscle contraction was 0.03 mA. Maximal muscle force (0.94 N) was produced by using moderate muscle length/tension (28 mm/0.08 N), 0.2 mA stimulation current, and 150 Hz stimulation frequency. These data are important not only to better understand the contractile properties of the rat SM muscle, but also to provide normative values which are critical to reliably assess the extent of functional recovery following muscle reinnervation. Hindawi Publishing Corporation 2010 2010-05-25 /pmc/articles/PMC2875700/ /pubmed/20508813 http://dx.doi.org/10.1155/2010/194984 Text en Copyright © 2010 S. Sobotka and L. Mu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Sobotka, Stanislaw
Mu, Liancai
Characteristics of Tetanic Force Produced by the Sternomastoid Muscle of the Rat
title Characteristics of Tetanic Force Produced by the Sternomastoid Muscle of the Rat
title_full Characteristics of Tetanic Force Produced by the Sternomastoid Muscle of the Rat
title_fullStr Characteristics of Tetanic Force Produced by the Sternomastoid Muscle of the Rat
title_full_unstemmed Characteristics of Tetanic Force Produced by the Sternomastoid Muscle of the Rat
title_short Characteristics of Tetanic Force Produced by the Sternomastoid Muscle of the Rat
title_sort characteristics of tetanic force produced by the sternomastoid muscle of the rat
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2875700/
https://www.ncbi.nlm.nih.gov/pubmed/20508813
http://dx.doi.org/10.1155/2010/194984
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