multichannel fes parameterization for controlling foot motion in paretic gait

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ID: 165771
2015
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Abstract
Stroke and other neurological disorders often lead to reduced motor function and to pathological foot motion during gait. We consider Functional Electrical Stimulation (FES) of the shank muscles that control dorsiflexion (related to pitch) and eversion (related to roll) of the foot. We describe the nonlinear domain of stimulation intensities that are tolerated by subjects in combined two-channel FES via surface electrodes. Two piecewise linear parameterizations of this domain are suggested and compared in terms of the cross-couplings between the newly defined stimulation intensity coordinates and the foot motion caused during swing phase in drop foot patients walking on a treadmill. Both parameterizations are found to yield almost monotonous input-output behavior and therefore facilitate decentralized control of the foot pitch and roll angle.
Reference Key
thomas2015currentmultichannel Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Seel Thomas;Ruppel Mirjana;Valtin Markus;Schauer Thomas
Journal materials science and engineering c
Year 2015
DOI
10.1515/cdbme-2015-0115
URL
http://www.degruyter.com/view/j/cdbme.2015.1.issue-1/cdbme-2015-0115/cdbme-2015-0115.xml?format=INT
Keywords
functional electrical stimulation biomedical engineering decentralized controlmedicine

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