Ultrasound evaluation of mechanical properties of individual muscles-tendons during active contraction

Qiyu Peng*, Li Qun Zhang

*Corresponding author for this work

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

4 Scopus citations

Abstract

A new method to accurately measure the mechanical properties of individual muscles and tendons under active contraction is presented. An individual muscle is activated selectively to different intensities through electrical stimulation with adjustable amplitude, frequency, and pulse width. During the course of active contraction of the stimulated muscle, muscle fiber pennation angle, muscle fascicle length, tendon length are measured by ultrasonography in vivo and non-invasively. The force produced by the stimulated muscle is derived from the measured joint torque and the moment arm recorded by a 3-D motion tracking system. The relationship between the force produced by the selected individual muscle and the muscle and tendon architectural parameters are studied quantitatively for the flexor carpi ulnaris and flexor carpi radialis.

Original languageEnglish (US)
Title of host publicationProceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
Pages7436-7439
Number of pages4
Volume7 VOLS
StatePublished - Dec 1 2005
Event2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai, China
Duration: Sep 1 2005Sep 4 2005

Other

Other2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
CountryChina
CityShanghai
Period9/1/059/4/05

Keywords

  • FCR
  • FCU
  • Stimulation
  • Stroke
  • Ultrasonography

ASJC Scopus subject areas

  • Bioengineering

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