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Evaluation of a Bio-impedance Method for Measuring Human Arm Movement

Authors
 Jong Chan Kim  ;  Soo Chan Kim  ;  Ki Chang Nam  ;  Seon Hui Ahn  ;  Mignon Park  ;  Deok Won Kim 
Citation
 YONSEI MEDICAL JOURNAL, Vol.43(5) : 637-643, 2002 
Journal Title
 YONSEI MEDICAL JOURNAL 
ISSN
 0513-5796 
Issue Date
2002
MeSH
Elbow/physiology* ; Electric Impedance ; Humans ; Movement ; Reproducibility of Results ; Wrist/physiology*
Keywords
Bio-impedance ; bio-dynamics ; upper limb movement ; wrist angl ; elbow angle
Abstract
This study proposes a new method for measuring upper limb movement using a bio-impedance technique. Bio-impedance and joint angle were simultaneously measured during the wrist and elbow movements of 12 normal subjects. The joint angles of the wrist and elbow were estimated by measuring the bio-impedances of the forearm and upper arm, respectively. Although the measured bio-impedances on upper limbs varied among individuals, changes in the bio-impedances and joint angles of the wrist and elbow during their extension and flexion were very highly correlated, having correlation coefficients of 0.96 ± 0.04 and -0.98 ± 0.02, respectively. The reproducibilities of wrist and elbow bio-impedance changes were 2.1 ± 1.0% and 1.8 ± 1.0%, respectively. Since the proposed method is not restricted by size or the duration of measurements, it is expected to be useful for the analysis of athletic movement.
Files in This Item:
T200210886.pdf Download
DOI
10.3349/ymj.2002.43.5.637
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/22282913/144577
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