Optimized analysis of surface electromyograms of the scalenes during quiet breathing in humans

Hug, Francois, Raux, Mathieu, Prella, Maura, Morelot-Panzini, Capucine, Straus, Christian and Similowski, Thomas (2006) Optimized analysis of surface electromyograms of the scalenes during quiet breathing in humans. Respiratory Physiology & Neurobiology, 150 1: 75-81. doi:10.1016/j.resp.2005.04.008


Author Hug, Francois
Raux, Mathieu
Prella, Maura
Morelot-Panzini, Capucine
Straus, Christian
Similowski, Thomas
Title Optimized analysis of surface electromyograms of the scalenes during quiet breathing in humans
Journal name Respiratory Physiology & Neurobiology   Check publisher's open access policy
ISSN 1569-9048
1878-1519
Publication date 2006-01
Year available 2006
Sub-type Article (original research)
DOI 10.1016/j.resp.2005.04.008
Volume 150
Issue 1
Start page 75
End page 81
Total pages 7
Place of publication Amsterdam, The Netherlands
Publisher Elsevier BV
Collection year 2007
Language eng
Formatted abstract
Studying the inspiratory recruitment of the scalenes is clinically relevant, but the interpretation of surface electromyographic (EMG) recordings is difficult. The aim of this study was to optimize an averaging method to analyze the surface EMG activity of the scalenes. Ten healthy subjects were studied. Nasal flow and surface EMG of the right scalene were recorded during 15 min epochs of quiet breathing. In four subjects, needle scalene EMG was also recorded. The flow signal was used to trigger the ensemble averaging of the ventilatory wave forms from 80 consecutive breaths. In eight cases, this evidenced a phasic inspiratory activation of the scalenes and permitted the determination of the electromechanical inspiratory delay (134 ± 55 ms) and post-inspiratory activity (811 ± 233 ms). When simultaneously available, surface and intramuscular recordings provided identical results. An averaging method triggered from a respiratory flow signal can identify and characterize a low phasic inspiratory activity of the scalenes within a noisy surface signal.
Keyword Respiratory muscle
Scalene
Root mean square
Electromechanical delay
Post inspiratory activity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Health and Rehabilitation Sciences Publications
 
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Created: Wed, 28 Aug 2013, 16:48:08 EST by Francois Hug on behalf of School of Health & Rehabilitation Sciences