Muscle strain field estimation using object tracking in high definition video sequences

Conference Paper

Measuring muscle activation is a valuable tool for the determination of diagnostic-focused parameters and the assessment of therapeutic intervention effectiveness. This paper presents a low cost, portable system for estimating muscular strain by measuring local superficial deformation of muscle tissues. Using stereo vision, the 3D positions of a set of markers, placed on the belly of a particular muscle, are estimated to calculate the relative distance between neighbor markers in order to approximate the superficial muscle strain field. This technique was tested on a female subject to measure the deformation of her right quadriceps during a electrical stimulation applied as a 20 Hz train of pulses. The current intensity is from 5 mA to 45 mA, with increasing steps of 5 mA. To validate the system results, the obtained strain fields are evaluated according to their consistency to the force signals resulting from the contractions induced by applied stimuli.

Full Text

Duke Authors

Cited Authors

  • Zamora, MA; Franco, H; Fang, Q; Shefelbine, S; Taylor, A; Ramirez-Martinez, A

Published Date

  • January 1, 2017

Published In

Volume / Issue

  • 60 /

Start / End Page

  • 385 - 388

International Standard Serial Number (ISSN)

  • 1680-0737

International Standard Book Number 13 (ISBN-13)

  • 9789811040856

Digital Object Identifier (DOI)

  • 10.1007/978-981-10-4086-3_97

Citation Source

  • Scopus