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http://dx.doi.org/10.12772/TSE.2022.59.248

Performance Evaluation of the Proper Pressing Method and Materials with Regard to EMG Textile Electrodes  

Koo, Bon-Hak (Department of Organic Materials and Fiber Engineering, Soongsil University)
Lee, Sang-ho (Department of Organic Materials and Fiber Engineering, Soongsil University)
Cha, Kyung-hoon (Department of Organic Materials and Fiber Engineering, Soongsil University)
Kim, Sang-Un (Department of Organic Materials and Fiber Engineering, Soongsil University)
Kim, Joo-yong (Department of Organic Materials and Fiber Engineering, Soongsil University)
Publication Information
Textile Science and Engineering / v.59, no.5, 2022 , pp. 248-256 More about this Journal
Abstract
After COVID-19, there is a growing demand for bio-signal wearable devices in everyday life owing to an increasing interest in health and fitness. Studies on wearable surface electromyography (sEMG) electrodes are being conducted because sEMG can measure muscle activity signals without incurring pain and bleeding. EMG electrodes are made of gel (i.e., Ag/AgCl); however, they are not suitable for long-term use in everyday life owing to their strong adhesive force and adverse impact on the skin. Accordingly, dry textile electrodes are required, along with electrode materials and compression methods suitable for obtaining EMG signals. Therefore, this study evaluated the performance of the EMG electrode compression method and appropriate textile electrode materials. Conductive textile electrodes were made of silver fabric, silver coating fabric, carbon fabric, and CNT-Dipping neoprene, and an EMG sensor was positioned at the biceps according to the SENIAM to obtain signals and raw data for each material and compression method. Silver fabric exhibited a significant muscle active/release signal data difference and low dispersion and demonstrated a high signal-to-noise ratio (SNR), which confirms that it is the most appropriate electrode material for conducting measurements. Therefore, while comparing the SNR of the silver fabric electrode and general wet electrodes in the band type, it exhibited similar performance and indicated that the wet electrode can be replaced with a textile dry electrode (band silver fabric electrode: 16.14±1.50; wet electrode: 17.77±1.00).
Keywords
textile electrodes; conductive fabric; EMG (electromyography); pressing methods; SNR (signal to noise ratio);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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