Electromechanical delay in biceps brachii assessed by ultrafast ultrasonography

Hug, Francois, Gallot, Thomas, Catheline, Stefan and Nordez, Antoine (2011) Electromechanical delay in biceps brachii assessed by ultrafast ultrasonography. Muscle and Nerve, 43 3: 441-443. doi:10.1002/mus.21948

Author Hug, Francois
Gallot, Thomas
Catheline, Stefan
Nordez, Antoine
Title Electromechanical delay in biceps brachii assessed by ultrafast ultrasonography
Journal name Muscle and Nerve   Check publisher's open access policy
ISSN 0148-639X
Publication date 2011-03-01
Year available 2011
Sub-type Article (original research)
DOI 10.1002/mus.21948
Open Access Status Not Open Access
Volume 43
Issue 3
Start page 441
End page 443
Total pages 3
Place of publication Hoboken, NJ United States
Publisher John Wiley and Sons
Language eng
Formatted abstract
Using ultrasound we tested the utility of determining the relative contribution of the main muscle structures/mechanisms to the electromechanical delay in the biceps brachii. Nine subjects underwent electrically evoked contractions with the echographic probe maintained over the muscle and the myotendinous junction. No difference was found between the onset of muscle fascicle motion (Dm, 5.57 ± 1.37 ms) and the onset of myotendinous junction motion (Dt, 5.47 ± 1.38 ms), whereas significant differences were found between Dm/Dt and electromechanical delay (approximately 10 ms). Electromechanical delay can be used as a model for studying the effects of neuromuscular disorders or various constraints that affect excitation- contraction coupling and/or muscle force transmission.
Keyword Echography
Maximal muscle shortening velocity
Slack length
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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Citation counts: TR Web of Science Citation Count  Cited 16 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 17 times in Scopus Article | Citations
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Created: Thu, 29 Aug 2013, 02:35:37 EST by Francois Hug on behalf of School of Health & Rehabilitation Sciences