An investigation into the effect of electrode type and stimulation parameters on FES-induced dynamic movement in the presence of muscle fatigue for a voltage-controlled stimulator

dc.contributor.authorStewart AM
dc.contributor.authorPretty CG
dc.contributor.authorChen X
dc.date.accessioned2019-08-21T21:49:24Z
dc.date.available2019-08-21T21:49:24Z
dc.date.issued2019en
dc.date.updated2019-06-17T23:21:33Z
dc.description.abstractFunctional Electrical Stimulation (FES) is very useful in Stroke Rehabilitation for rebuilding muscle strength, both in a clinical setting and for home-based rehabilitation, however it is limited in its usage due to the resulting FES-induced muscle fatigue, as well as a large variation in muscle response. This paper compares the effectiveness of e-textile electrodes with conventional hydrogel electrodes at a range of stimulation parameters. The e-textiles produced a stronger response at a lower voltage than the hydrogels (3-4 V difference for a stimulation intensity voltage range of 8-22 V) and offer more consistency across different FES sessions. A simple model was then developed which relates the variation of the stimulation parameters (voltage, pulse-width, and frequency) to a change in angle for the elbow joint (Bicep muscle) using the e-textile electrodes. Step responses for various combinations of FES parameters were measured for 8 different healthy subjects for a total of fifty 10 minute long tests. Overall the model produced good predictions of the arm response and it was found that the model was more accurate and consistent for combinational parameter steps than for individual parameter steps. The R² value for the measured step change compared with the predicted step change for FES-induced contractions for all step types and subjects combined was 0.76 for one of the methods using the model.en
dc.identifier.citationStewart AM, Pretty CG, Chen X (2019). An investigation into the effect of electrode type and stimulation parameters on FES-induced dynamic movement in the presence of muscle fatigue for a voltage-controlled stimulator. IFAC Journal of Systems and Control. 8. 100043-100043.en
dc.identifier.doihttps://doi.org/10.1016/j.ifacsc.2019.100043
dc.identifier.issn2468-6018
dc.identifier.urihttp://hdl.handle.net/10092/16967
dc.languageEnglish
dc.language.isoen
dc.publisherElsevier BVen
dc.subject.anzsrcField of Research::09 - Engineering::0913 - Mechanical Engineeringen
dc.subject.anzsrcFields of Research::51 - Physical sciences::5105 - Medical and biological physics::510502 - Medical physicsen
dc.titleAn investigation into the effect of electrode type and stimulation parameters on FES-induced dynamic movement in the presence of muscle fatigue for a voltage-controlled stimulatoren
dc.typeJournal Articleen
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