Innovative textile electrodes for muscles electrostimulation

Gniotek, K.; Frydrysiak, M.; Zięba, J.; Tokarska, Magdalena; Stempień, Z.

doi:10.1109/memea.2011.5966678

Cited by 25 publications

(39 citation statements)

References 2 publications

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“…Recently, textile electrodes also have been applied to facilitate electric stimulation in sports and rehabilitation applications [ 15 , 16 , 17 , 18 ]. By using various types of washable textile electrodes, Li et al .…”

Section: Introductionmentioning

confidence: 99%

“…Their experiments showed that the fabric electrode array can produce similar levels of movement as a flexible printed-circuit-board (PCB) array with a hydrogel layer. In addition, in order to improve the stimulation effectiveness and the wearing comfort, different conductive textile materials were investigated and compared in manufacturing textile stimulation electrodes [ 16 ]. With integration of conductive textile stimulation electrodes, some smart garments were developed for restoring hand functions [ 16 ] and for pain relief [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

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Stimulating the Comfort of Textile Electrodes in Wearable Neuromuscular Electrical Stimulation

Zhou

Chen

et al. 2015

Sensors

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Textile electrodes are becoming an attractive means in the facilitation of surface electrical stimulation. However, the stimulation comfort of textile electrodes and the mechanism behind stimulation discomfort is still unknown. In this study, a textile stimulation electrode was developed using conductive fabrics and then its impedance spectroscopy, stimulation thresholds, and stimulation comfort were quantitatively assessed and compared with those of a wet textile electrode and a hydrogel electrode on healthy subjects. The equivalent circuit models and the finite element models of different types of electrode were built based on the measured impedance data of the electrodes to reveal the possible mechanism of electrical stimulation pain. Our results showed that the wet textile electrode could achieve similar stimulation performance as the hydrogel electrode in motor threshold and stimulation comfort. However, the dry textile electrode was found to have very low pain threshold and induced obvious cutaneous painful sensations during stimulation, in comparison to the wet and hydrogel electrodes. Indeed, the finite element modeling results showed that the activation function along the z direction at the depth of dermis epidermis junction of the dry textile electrode was significantly larger than that of the wet and hydrogel electrodes, thus resulting in stronger activation of pain sensing fibers. Future work will be done to make textile electrodes have similar stimulation performance and comfort as hydrogel electrodes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stimulating the Comfort of Textile Electrodes in Wearable Neuromuscular Electrical Stimulation

Zhou

Chen

et al. 2015

Sensors

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“…Both electrodes are capable of producing a contraction in the bicep muscle resulting in full flexion of the elbow joint. Previous studies have shown e-textiles to have a low impedance which is desirable for FES [26,27]. This lower impedance results in the lower stimulation intensity required for muscle activation which is evident in these results.…”

Section: Discussionmentioning

confidence: 58%

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

Stewart

Pretty

Chen

2019

IFAC Journal of Systems and Control

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Functional 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.

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“…The surface resistance of flat textile products is substitute resistance resulting from the yarns resistance and contact resistance occurring between the yarns forming a fibrous structure [24][25][26]28]. Due to the new use of electrically conductive textiles, e.g.…”

Section: Textile Materialsmentioning

confidence: 99%

“…The flow of current in flat textile products takes place both through continuous elements and through the points of their contact. Therefore, we deal here with the resistance of a single contact point, a contact line and a contact area [23,24]. The resistance of a sample depends on the number of electrodes employed, and the size of the contact area between the electrode and the substrate.…”

Section: Introductionmentioning

confidence: 99%

Electrical properties of flat textile material as inhomegeneous and anisotropic structure

Tokarska

Frydrysiak

Zięba

2013

J Mater Sci: Mater Electron

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The main purpose of the study was to present the basic problems of determining surface resistance of electroconductive fabric. The attention was paid to the arrangement of electrodes on a sample. Analysis of the contact resistance between the measuring electrode and the fibrous substrate was conducted. The multi-variant research of a textile sample has shown that the electrodes arrangement is of significance for sample resistance measurement results. The arrangement of four electrodes on the edge of the sample allows the assessment of electroconductive properties of whole textile sample surface. It was found that the woven fabric sample is not homegeneous and anisotropic. Research of textile material with the coaxial electrode arrangement enable the local values of material resistance to be assessed. Results of multi-variant research have provided important knowledge about the textile material structure and its properties.

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Innovative textile electrodes for muscles electrostimulation

Cited by 25 publications

References 2 publications

Stimulating the Comfort of Textile Electrodes in Wearable Neuromuscular Electrical Stimulation

Stimulating the Comfort of Textile Electrodes in Wearable Neuromuscular Electrical Stimulation

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

Electrical properties of flat textile material as inhomegeneous and anisotropic structure

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