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Curved Microneedle Array-Based sEMG Electrode for Robust Long-Term Measurements and High Selectivity.

Kim M, Kim T, Kim DS, Chung WK - Sensors (Basel) (2015)

Bottom Line: However, conventional electrodes are not appropriate for long-term measurements and are easily influenced by the environment, so the range of applications of sEMG is limited.The results show that the proposed electrode is robust to perspiration and can maintain a high-quality measuring ability for over 8 h.The proposed electrode also has high selectivity for motion compared with a commercial wet electrode and dry electrode.

View Article: PubMed Central - PubMed

Affiliation: Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea. minjaekim@postech.ac.kr.

ABSTRACT
Surface electromyography is widely used in many fields to infer human intention. However, conventional electrodes are not appropriate for long-term measurements and are easily influenced by the environment, so the range of applications of sEMG is limited. In this paper, we propose a flexible band-integrated, curved microneedle array electrode for robust long-term measurements, high selectivity, and easy applicability. Signal quality, in terms of long-term usability and sensitivity to perspiration, was investigated. Its motion-discriminating performance was also evaluated. The results show that the proposed electrode is robust to perspiration and can maintain a high-quality measuring ability for over 8 h. The proposed electrode also has high selectivity for motion compared with a commercial wet electrode and dry electrode.

No MeSH data available.


(a) Configurations of the thumb that were used in motion classification; (b) electrode placement.
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f13-sensors-15-16265: (a) Configurations of the thumb that were used in motion classification; (b) electrode placement.

Mentions: To investigate the selectivity of the electrode, a thumb motion classification was performed. The thumb has a universal joint, so it can represent various motions (Figure 13a). The thumb has a complex muscle group, located in the highly deformable palm. Thus, the electrodes for thumb motion classification require stable contact and high selectivity of motion. The performance was compared with those of the commercial wet electrode and the dry electrode. Five subjects participated in this experiment.


Curved Microneedle Array-Based sEMG Electrode for Robust Long-Term Measurements and High Selectivity.

Kim M, Kim T, Kim DS, Chung WK - Sensors (Basel) (2015)

(a) Configurations of the thumb that were used in motion classification; (b) electrode placement.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4541878&req=5

f13-sensors-15-16265: (a) Configurations of the thumb that were used in motion classification; (b) electrode placement.
Mentions: To investigate the selectivity of the electrode, a thumb motion classification was performed. The thumb has a universal joint, so it can represent various motions (Figure 13a). The thumb has a complex muscle group, located in the highly deformable palm. Thus, the electrodes for thumb motion classification require stable contact and high selectivity of motion. The performance was compared with those of the commercial wet electrode and the dry electrode. Five subjects participated in this experiment.

Bottom Line: However, conventional electrodes are not appropriate for long-term measurements and are easily influenced by the environment, so the range of applications of sEMG is limited.The results show that the proposed electrode is robust to perspiration and can maintain a high-quality measuring ability for over 8 h.The proposed electrode also has high selectivity for motion compared with a commercial wet electrode and dry electrode.

View Article: PubMed Central - PubMed

Affiliation: Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea. minjaekim@postech.ac.kr.

ABSTRACT
Surface electromyography is widely used in many fields to infer human intention. However, conventional electrodes are not appropriate for long-term measurements and are easily influenced by the environment, so the range of applications of sEMG is limited. In this paper, we propose a flexible band-integrated, curved microneedle array electrode for robust long-term measurements, high selectivity, and easy applicability. Signal quality, in terms of long-term usability and sensitivity to perspiration, was investigated. Its motion-discriminating performance was also evaluated. The results show that the proposed electrode is robust to perspiration and can maintain a high-quality measuring ability for over 8 h. The proposed electrode also has high selectivity for motion compared with a commercial wet electrode and dry electrode.

No MeSH data available.