npj Flexible Electronics ( IF 12.3 ) Pub Date : 2024-11-14 , DOI: 10.1038/s41528-024-00364-6 Myunghwan Song, Junyoung Moon, Hyungseok Yong, Hyeonhui Song, Juneil Park, Jiwoong Hur, Dongchang Kim, Kyungtae Park, Sungwon Jung, Gyeongmo Kim, Sangeui Lee, Deokjae Heo, Kyunghwan Cha, Patrick T. J. Hwang, Jinkee Hong, Giuk Lee, Sangmin Lee
Electrical stimulation is effective for various therapeutic applications; however, to increase convenience, it is crucial to eliminate generators and batteries for wireless power transmission. This paper presents a full textile-based body-coupled electrical stimulation (BCES) system designed for wireless electrical stimulation using energy loss from electronic devices and static electricity from physical activity. We developed the BCES socks by knitting conductive threads to ensure stability and comfort. BCES socks generate electric fields ranging from tens to hundreds of millivolts per millimeter, which are sufficient to activate muscle fibers. Experimental and computational analyses confirmed the effective concentration of the electric fields. Human trials demonstrated significant improvements in exercise performance, with a 21.47% increase in calf raise frequency, an 11.97% increase in repetition count, and a 6.25% reduction in muscle fatigue. These results indicate the potential of BCES socks as a practical battery-free solution for enhancing muscle activity and reducing fatigue.
中文翻译:
基于全纺织品的身体耦合电刺激,用于无线、无电池和可穿戴生物电子
电刺激对各种治疗应用有效;但是,为了提高便利性,取消用于无线电力传输的发电机和电池至关重要。本文提出了一种基于全纺织品的身体耦合电刺激 (BCES) 系统,该系统旨在利用电子设备的能量损失和身体活动的静电进行无线电刺激。我们通过编织导电线开发了 BCES 袜子,以确保稳定性和舒适性。BCES 袜子产生的电场从每毫米几十到几百毫伏不等,足以激活肌肉纤维。实验和计算分析证实了电场的有效浓度。人体试验表明,运动表现有显着改善,小腿抬高频率增加 21.47%,重复次数增加 11.97%,肌肉疲劳减少 6.25%。这些结果表明 BCES 袜子作为增强肌肉活动和减少疲劳的实用无电池解决方案的潜力。