Detection of muscle activation through multi-electrode sensing using electrical stimulation

Choonghyun Son, Seulgee Kim, Seung-Jong Kim, Junho Choi, Dae Eun Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The need to assess muscle activation and intention recognition in the design of prosthetic or exoskeleton robots has recently increased in rehabilitation medical research. Assessment of the muscle activation has an important role in the control of wearable devices. Such application requires estimating a patient's intention through the detection of their muscle activation. Previously developed techniques, namely, bioelectrical impedance analysis, electrical impedance myography, electrical impedance tomography, and a surface electromyogram, have been used in the detection of muscle activation. However, these techniques tend to have difficulty in assessing the muscle activation. A biopsy needle can be used to sense the muscle activation in an invasive manner. We propose a new method for detecting the muscle activation using multi-electrode sensing with electrical stimulation, but without a biopsy needle. Electrical stimulation is applied to the skin of a subjects forearm. The signals reflected from their muscles are then measured using multiple electrodes placed on the skin. The forearm skin and its muscles can be modeled as muscle tissue circuits depending on the signal frequency. We verified the proposed method experimentally through isometric muscle contraction, isotonic muscle action, and a frequency response test using various frequencies of the electric stimulation signals. Experiments with eight healthy subjects showed promising results in the detection of muscle activation, which can be applied to prosthetic or exoskeleton robots.

Original languageEnglish
Pages (from-to)19-28
Number of pages10
JournalSensors and Actuators, A: Physical
Volume275
DOIs
Publication statusPublished - 2018 Jun 1

Fingerprint

muscles
stimulation
Muscle
Chemical activation
activation
Electrodes
electrodes
Acoustic impedance
exoskeletons
forearm
Skin
Biopsy
electrical impedance
robots
needles
Prosthetics
Needles
electromyography
muscular function
Robots

Keywords

  • Detection of muscle activation
  • Electrical impedance
  • Isometric muscle action
  • Isotonic muscle movement
  • Multi-electrode sensing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

Cite this

Detection of muscle activation through multi-electrode sensing using electrical stimulation. / Son, Choonghyun; Kim, Seulgee; Kim, Seung-Jong; Choi, Junho; Kim, Dae Eun.

In: Sensors and Actuators, A: Physical, Vol. 275, 01.06.2018, p. 19-28.

Research output: Contribution to journalArticle

Son, Choonghyun ; Kim, Seulgee ; Kim, Seung-Jong ; Choi, Junho ; Kim, Dae Eun. / Detection of muscle activation through multi-electrode sensing using electrical stimulation. In: Sensors and Actuators, A: Physical. 2018 ; Vol. 275. pp. 19-28.
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