Original scientific paper
https://doi.org/10.1080/00051144.2020.1783615
Optimization of the electrode configuration of electrical impedance myography for wearable application
J. N. Wang
; College of Physics and Information Engineering, Fuzhou University, Fuzhou, People’s Republic of China
H. Y. Zhou
; College of Physics and Information Engineering, Fuzhou University, Fuzhou, People’s Republic of China
Y. M. Gao
; College of Physics and Information Engineering, Fuzhou University, Fuzhou, People’s Republic of China
J. J. Yang
; College of Physics and Information Engineering, Fuzhou University, Fuzhou, People’s Republic of China
Ž. Lučev Vasić
; Faculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, Croatia
M. Cifrek
; Faculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, Croatia
M. Du
; College of Physics and Information Engineering, Fuzhou University, Fuzhou, People’s Republic of China
Abstract
Electrical Impedance Myography (EIM) based on the four-electrode method is a novel method for assessing muscle state in the fields of sports, fitness, and medical rehabilitation. However, commonly used configuration of electrodes is not suitable for the wearable field, because of its large total area and low sensitivity. An optimized electrode configuration for wearable application is proposed as Mode B. Equivalent circuit model B of the four-electrode method is established by using the equivalent circuit of biological tissues, and in-vivo measurements of the electrical impedance of the biceps muscle are carried out on six volunteers using bioimpedance spectroscopy device ImpTM SFB7. The experimental results show that equivalent circuit model B of the four-electrode method is reliable. Moreover, the variation in muscle electrical impedance measured using the optimal configuration of model B is twice that measured using the optimal configuration of model A. The optimized electrode configuration of EIM based on this approach is model B (i.e. square electrodes in parallel array; size, 20 mm × 20 mm; spacing, 5–24 mm).
Keywords
Electrical impedance myography (EIM); optimizing electrode configuration; equivalent circuit model; four-electrode method
Hrčak ID:
239887
URI
Publication date:
25.6.2020.
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