Muscle shear elastic modulus is linearly related to muscle torque over the entire range of isometric contraction intensity

Filiz Ateş, François Hug, Killian Bouillard, Marc Jubeau, Thomas Frappart, Mathieu Couade, Jeremy Bercoff, Antoine Nordez

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Muscle shear elastic modulus is linearly related to muscle torque during low-level contractions (2) (range: 0.86-0.98) indicated that the relationship between elastic modulus and torque can be accurately modeled by a linear regression over the entire range (0% to 100% of MVC). The changes in shear elastic modulus as a function of torque were highly repeatable. Lower R2 values (0.89 ± 0.13 for 1/16 of ROI) and significantly increased absolute errors were observed when the shear elastic modulus was averaged over smaller ROI, half, 1/4 and 1/16 of the full ROI) than the full ROI (mean size: 1.18 ± 0.24 cm2). It suggests that the ROI should be as large as possible for accurate measurement of muscle shear modulus.

Original languageEnglish
Pages (from-to)703-708
Number of pages6
JournalJournal of Electromyography and Kinesiology
Volume25
Issue number4
DOIs
Publication statusPublished - 2015 Aug 1
Externally publishedYes

Fingerprint

Isometric Contraction
Elastic Modulus
Torque
Muscles
Linear Models

Keywords

  • Abductor Digiti Minimi
  • Force
  • Shear wave
  • Supersonic shear imaging
  • Ultrasound elastography

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Biophysics
  • Clinical Neurology
  • Medicine(all)

Cite this

Muscle shear elastic modulus is linearly related to muscle torque over the entire range of isometric contraction intensity. / Ateş, Filiz; Hug, François; Bouillard, Killian; Jubeau, Marc; Frappart, Thomas; Couade, Mathieu; Bercoff, Jeremy; Nordez, Antoine.

In: Journal of Electromyography and Kinesiology, Vol. 25, No. 4, 01.08.2015, p. 703-708.

Research output: Contribution to journalArticle

Ateş, Filiz ; Hug, François ; Bouillard, Killian ; Jubeau, Marc ; Frappart, Thomas ; Couade, Mathieu ; Bercoff, Jeremy ; Nordez, Antoine. / Muscle shear elastic modulus is linearly related to muscle torque over the entire range of isometric contraction intensity. In: Journal of Electromyography and Kinesiology. 2015 ; Vol. 25, No. 4. pp. 703-708.
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