0 8

Cited 0 times in

Optimum electrode configuration for detection of arm movement using bio-impedance

Authors
 S C Kim  ;  K C Nam  ;  D W Kim  ;  C Y Ryu  ;  Y H Kim  ;  J C Kim 
Citation
 MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING, Vol.41(2) : 141-145, 2003-03 
Journal Title
 MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING 
ISSN
 0140-0118 
Issue Date
2003-03
MeSH
Arm / physiology* ; Elbow Joint / physiology ; Electric Impedance ; Electrodes ; Electrodiagnosis / methods* ; Humans ; Movement* ; Muscle, Skeletal / physiology ; Wrist Joint / physiology
Abstract
A four-channel impedance measurement system, including a two-channel goniometer, to analyse human arm movement, was constructed. Impedances and joint angles were simultaneously measured for wrist and elbow movements. As the impedance changes resulting from wrist and elbow movements depended heavily on electrode placement, the optimum electrode configurations for those movements were determined by searching for high correlation coefficients, large impedance changes and minimum interferences in ten subjects (age: 29 +/- 6 years). The optimum electrode configurations showed very strong relationships between the wrist joint angle and forearm impedance (correlation coefficient= 0.95 +/- 0.04) and between the elbow joint angle and upper arm impedance (correlation coefficient= -0.97 +/- 0.03). Although the measured impedance changes of the wrist (1.1 +/-1.5 ohms) and elbow (-5.0 +/-2.9 ohms) varied between individuals, the reproducibilities of wrist and elbow impedance changes of five subjects were 5.8 +/- 1.8% and 4.6 +/- 1.4% for the optimum electrode pairs, respectively. It is proposed that this optimum electrode configuration would be useful for future studies involving the accurate measurement of arm movements by the impedance method.
Full Text
https://link.springer.com/article/10.1007/BF02344881
DOI
10.1007/BF02344881
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Deok Won(김덕원)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/178768
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links