NDLI: Using electromechanical delay for real-time anti-phase tremor attenuation system using Functional Electrical Stimulation

Content Provider	IEEE Xplore Digital Library
Author	Widjaja, F. Cheng Yap Shee Wing Lok Au Poignet, P. Wei Tech Ang
Copyright Year	2011
Description	Author affiliation: LIRMM Robotics Department, University of Montpellier II in France (Poignet, P.) \|\| Department of Neurology, National Neuroscience Institute in Singapore (Wing Lok Au) \|\| Biorobotics Lab, School of Mechanical and Aerospace Engineering in Nanyang Technological University, Singapore (Widjaja, F.; Cheng Yap Shee; Wei Tech Ang)
Abstract	In this paper, we propose a novel anti-phase tremor compensation method using surface electromyography (SEMG) and accelerometer (ACC). The usefulness of the SEMG signal is that it precedes the generated joint movement by 20–100 ms (electromechanical delay, EMD). Hence by detecting the tremor in advance, there is enough time window to do the necessary computation and to actuate the antagonist muscle by Functional Electrical Stimulation (FES). This is also possible because the time taken for FES to actuate the muscle is significantly less than that of the neural signal, as detected by SEMG. Specifically, what is proposed in this paper is algorithm to an estimate the EMD and to determine when to start/stop the FES such that anti-phase tremor cancellation. Experimental result from one Essential Tremor patient show 57% reduction in tremor power as measured by the ACC.
Starting Page	3694
Ending Page	3699
File Size	801076
Page Count	6
File Format	PDF
ISBN	9781612843865
ISSN	10504729
e-ISBN	9781612843858
DOI	10.1109/ICRA.2011.5979865
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-09
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Wrist Accelerometers Muscles Real time systems Estimation Signal processing algorithms
Content Type	Text
Resource Type	Article
Subject	Artificial Intelligence Control and Systems Engineering Electrical and Electronic Engineering Software

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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