High resolution ultrasound imaging of skeletal muscle dynamics and effects of fatigue

Russell S Witte, D. E. Dow, R. Olafsson, Y. Shi, M. O'Donnell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

A real-time high-frequency ultrasound acquisition system was used to describe coordination of individual muscle fibers during an isometric contraction. Effects of contraction size and muscle fatigue on axial strain and strain rate were examined in isolated leg muscles from a rat and mouse. Strain was estimated with a phase-sensitive speckle-tracking algorithm, capable of detecting displacements less than 100 nm. The spatial distribution of axial strain was not uniform and ranged from 0.5% - 5% during twitch stimulation. Also, strain and strain rate paralleled contraction size and degree of muscle fatigue. This potentially noninvasive technique may be appropriate to assess severity of movement disorders, such as cerebral palsy, and track coordination during therapy and rehabilitation after muscle injury.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE Ultrasonics Symposium
EditorsM.P. Yuhas
Pages764-767
Number of pages4
Volume1
DOIs
StatePublished - 2004
Externally publishedYes
Event2004 IEEE Ultrasonics Symposium - Montreal, Que., Canada
Duration: Aug 23 2004Aug 27 2004

Other

Other2004 IEEE Ultrasonics Symposium
CountryCanada
CityMontreal, Que.
Period8/23/048/27/04

Fingerprint

Muscle
Ultrasonics
Fatigue of materials
Imaging techniques
Strain rate
Speckle
Patient rehabilitation
Spatial distribution
Rats
Fibers

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Witte, R. S., Dow, D. E., Olafsson, R., Shi, Y., & O'Donnell, M. (2004). High resolution ultrasound imaging of skeletal muscle dynamics and effects of fatigue. In M. P. Yuhas (Ed.), Proceedings - IEEE Ultrasonics Symposium (Vol. 1, pp. 764-767). [U2-G-5] https://doi.org/10.1109/ULTSYM.2004.1417834

High resolution ultrasound imaging of skeletal muscle dynamics and effects of fatigue. / Witte, Russell S; Dow, D. E.; Olafsson, R.; Shi, Y.; O'Donnell, M.

Proceedings - IEEE Ultrasonics Symposium. ed. / M.P. Yuhas. Vol. 1 2004. p. 764-767 U2-G-5.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Witte, RS, Dow, DE, Olafsson, R, Shi, Y & O'Donnell, M 2004, High resolution ultrasound imaging of skeletal muscle dynamics and effects of fatigue. in MP Yuhas (ed.), Proceedings - IEEE Ultrasonics Symposium. vol. 1, U2-G-5, pp. 764-767, 2004 IEEE Ultrasonics Symposium, Montreal, Que., Canada, 8/23/04. https://doi.org/10.1109/ULTSYM.2004.1417834
Witte RS, Dow DE, Olafsson R, Shi Y, O'Donnell M. High resolution ultrasound imaging of skeletal muscle dynamics and effects of fatigue. In Yuhas MP, editor, Proceedings - IEEE Ultrasonics Symposium. Vol. 1. 2004. p. 764-767. U2-G-5 https://doi.org/10.1109/ULTSYM.2004.1417834
Witte, Russell S ; Dow, D. E. ; Olafsson, R. ; Shi, Y. ; O'Donnell, M. / High resolution ultrasound imaging of skeletal muscle dynamics and effects of fatigue. Proceedings - IEEE Ultrasonics Symposium. editor / M.P. Yuhas. Vol. 1 2004. pp. 764-767
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