2025-10-16 理化学研究所,東京大学
下半身型無線筋電図計測スマート衣服
<関連情報>
- https://www.riken.jp/press/2025/20251016_2/index.html
- https://www.science.org/doi/10.1126/sciadv.adx4518
同軸シールド導電性糸を使用した体規模の繊維ベースの筋電図モニタリングシステム A body-scale textile-based electromyogram monitoring system with coaxially shielded conductive yarns
Sunghoon Lee, Kanta Takano, Wakako Yukita, Yusaku Tagawa, […] , and Takao Someya
Science Advances Published:15 Oct 2025
DOI:https://doi.org/10.1126/sciadv.adx4518
Abstract
A crucial aim of wearable electronics is to acquire biological signals from the body with high precision. However, obtaining high-accuracy electromyogram (EMG) signals from a large area surrounded by noise sources remains challenging. In this study, we present a body-scale textile-based wireless electromyogram monitoring system with coaxially shielded conductive yarns that can reduce the influence of surrounding noise. The wiring yarns comprise three stretchable components: a conductive signal yarn, polyurethane insulating layer, and shielding conductor. The introduction of the shielding conductor suppresses noise contamination. The noise level remains below 0.1 millivolts, despite the wiring being directly pressed at nominal contact pressures exceeding 30 kilopascals. The muscle activity at various shoulder joint angles is successfully recorded when another person directly touches the arm and wiring for support. Furthermore, EMG monitoring of the lower body is performed during dynamic activities such as countermovement jumps, jogging, and running.
