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A new method for detection of leg movement using bio-impedance

  • K. S. Kim
  • , S. O. Lee
  • , S. C. Kim
  • , D. W. Kim
  • , J. H. Seo
  • , K. S. Kim
  • , Chul Gyu Song*
  • *Corresponding author for this work
  • Jeonbuk National University
  • Hankyong National University
  • Yonsei University
  • Konkuk University

Research output: Contribution to conferenceConference paperpeer-review

Abstract

The purpose of this paper is to provide a new method for detection of leg movement using bio-impedance. This impedance is measured by four-electrode method. As the impedance changes resulting from ankle, knee, and hip movements depended heavily on electrode placement, we determined the optimal electrode configuration for those movements by searching for high correlation coefficients, large impedance changes, and minimum interferences in ten subjects. Our optimal electrode configurations showed very strong relationships between the ankle joint angle and ankle impedance(r=-0.913), between the knee joint angle and knee impedance(r=0.944), and between the hip joint angle and hip impedance(r=0.823). This study showed possibility that lower leg movement could be easily measured by impedance measurement system with two pairs of skin-electrodes.

Original languageEnglish
Title of host publicationIFMBE Proceedings
EditorsSun I. Kim, Tae Suk Suh
PublisherSpringer Verlag
Pages3956-3959
Number of pages4
Edition1
ISBN (Print)9783540368397
DOIs
StatePublished - 2007
Event10th World Congress on Medical Physics and Biomedical Engineering, WC 2006 - Seoul, Korea, Republic of
Duration: 2006.08.272006.09.1

Publication series

NameIFMBE Proceedings
Number1
Volume14
ISSN (Print)1680-0737
ISSN (Electronic)1433-9277

Conference

Conference10th World Congress on Medical Physics and Biomedical Engineering, WC 2006
Country/TerritoryKorea, Republic of
CitySeoul
Period06.08.2706.09.1

Keywords

  • Angular change
  • Bio-impedance
  • Impedance change
  • Leg movement
  • Optimum electrode configuration

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Chemical
  • Biological Sciences

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