Please use this identifier to cite or link to this item: https://doi.org/10.1002/advs.201900149
Title: Investigation of Low-Current Direct Stimulation for Rehabilitation Treatment Related to Muscle Function Loss Using Self-Powered TENG System
Authors: Wang, Jiahui 
Wang, Hao 
He, Tianyiyi 
He, Borong
Thakor, Nitish 
Lee, Chengkuo 
Keywords: electrical muscle stimulation
self-powered
stimulation efficiency
stimulation stability
stimulation waveform
triboelectric direct stimulation
Issue Date: 17-Jul-2019
Publisher: WILEY
Citation: Wang, Jiahui, Wang, Hao, He, Tianyiyi, He, Borong, Thakor, Nitish, Lee, Chengkuo (2019-07-17). Investigation of Low-Current Direct Stimulation for Rehabilitation Treatment Related to Muscle Function Loss Using Self-Powered TENG System. ADVANCED SCIENCE 6 (14). ScholarBank@NUS Repository. https://doi.org/10.1002/advs.201900149
Abstract: Muscle function loss is characterized as abnormal or completely lost muscle capabilities, and it can result from neurological disorders or nerve injuries. The currently available clinical treatment is to electrically stimulate the diseased muscles. Here, a self-powered system of a stacked-layer triboelectric nanogenerator (TENG) and a multiple-channel epimysial electrode to directly stimulate muscles is demonstrated. Then, the two challenges regarding direct TENG muscle stimulation are further investigated. For the first challenge of improving low-current TENG stimulation efficiency, it is found that the optimum stimulation efficiency can be achieved by conducting a systematic mapping with a multiple-channel epimysial electrode. The second challenge is TENG stimulation stability. It is found that the force output generated by TENGs is more stable than using the conventional square wave stimulation and enveloped high frequency stimulation. With modelling and in vivo measurements, it is confirmed that the two factors that account for the stable stimulation using TENGs are the long pulse duration and low current amplitude. The current waveform of TENGs can effectively avoid synchronous motoneuron recruitment at the two stimulation electrodes to reduce force fluctuation. Here, after investigating these two challenges, it is believed that TENG direct muscle stimulation could be used for rehabilitative and therapeutic purpose of muscle function loss treatment.
Source Title: ADVANCED SCIENCE
URI: https://scholarbank.nus.edu.sg/handle/10635/190043
ISSN: 21983844
DOI: 10.1002/advs.201900149
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