Characterization of evoked tactile sensation in forearm amputees with transcutaneous electrical nerve stimulation

Chai, Guohong; Sui, Xiaohong; Li, Si; He, Longwen; Lan, Ning

doi:10.1088/1741-2560/12/6/066002

Cited by 103 publications

(109 citation statements)

References 71 publications

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“…Neuromuscular electrical stimulation (NMES) has been widely applied in clinical rehabilitation . Usually, electrical stimulation of motor fibers first excites the large‐diameter axons of motor units (MUs).…”

Section: Introductionmentioning

confidence: 99%

“…Neuromuscular electrical stimulation (NMES) has been widely applied in clinical rehabilitation. [1][2][3][4][5] Usually, electrical stimulation of motor fibers first excites the large-diameter axons of motor units (MUs). NMES also activates muscle contraction through a central mechanism by which motor units are recruited through spinal pathways by an evoked sensory volley.…”

Section: Introductionmentioning

confidence: 99%

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Burst‐modulated wide‐pulse neuromuscular electrical stimulation enhances H‐reflex recruitment in rats

Hou

Yun

et al. 2020

Muscle and Nerve

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Introduction In this study we investigated whether burst‐modulated wide‐pulse neuromuscular electrical stimulation (NMES) can improve the H‐reflex and activation efficiency of sensory fibers. Methods NMES‐induced electromyography (EMG) was recorded from hindpaw plantar muscles in 11 anesthetized rats. A burst‐modulated wide pulse (mWP) with three carrier frequencies (2 kHz, 5 kHz, and 10 kHz) and a continuous wide‐pulse (WP) were delivered to the tibial nerve of each rat. The evoked Hoffman (H)‐reflexes were measured to evaluate nerve activation efficiency using the H‐reflex recruitment curve (HRC). Results Relative to WP simulation, mWP stimulation required less electrical charge to excite sensory fibers and improved the H‐reflex recruitment. Greater electrical charge and smaller recruitment gains were obtained with increased carrier frequency of mWP. Discussion mWP NMES can improve stimulation efficiency and improve recruitment of sensory fibers on tibial nerve stimulation, which may help to optimize NMES stimulus parameters.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Burst‐modulated wide‐pulse neuromuscular electrical stimulation enhances H‐reflex recruitment in rats

Hou

Yun

et al. 2020

Muscle and Nerve

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“…However, differences in the perceived location of the feedback and the actual intended sensation can still limit the performance and increase response time [16,17]. When the feedback is also somatotopically matched, studies have shown promise in providing more intuitive sensory information, which reduces the cognitive load of the induced perceptions by evoking sensations in specific regions of the phantom hand or fingers [18][19][20][21][22][23]. Different somatotopic matching techniques range widely between non-invasive to invasive studies, each with their merits and costs.…”

Section: Introductionmentioning

confidence: 99%

Evoked haptic sensations in the hand via non-invasive proximal nerve stimulation

et al. 2018

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Our findings demonstrated the capabilities of our transcutaneous stimulation method. Subjects were able to perceive spatially distinct sensations with graded magnitudes that emulated tapping and holding sensation in their hands. The elicitation of haptic sensations in the phantom hand of an amputee is a significant step in the development of our stimulation method, and provides insight into the future adaptation and implementation of prostheses with non-invasive sensory feedback to the users.

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“…With a flat interface nerve electrode, the common nerve trunk can be selectively recruited (Tyler and Durand, 2002). Recently, the transcutaneous electrical nerve stimulation (TENS) was applied to accomplish tactile sensation for the amputee (Chai et al, 2015) and healthy subjects (Forst et al, 2015). Due to the non-invasiveness, the TENS could be promising in wide clinical applications to elicit tactile feedback.…”

Section: Introductionmentioning

confidence: 99%

A 3D Computational Model of Transcutaneous Electrical Nerve Stimulation for Estimating Aβ Tactile Nerve Fiber Excitability

Zhu

Wei

et al. 2017

Front. Neurosci.

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Tactile sensory feedback plays an important role in our daily life. Transcutaneous electrical nerve stimulation (TENS) is widely accepted to produce artificial tactile sensation. To explore the underlying mechanism of tactile sensation under TENS, this paper presented a novel 3D TENS computational model including an active Aβ tactile nerve fiber (TNF) model and a forearm finite element model with the fine-layered skin structure. The conduction velocity vs. fiber diameter and strength-duration relationships in this combined TENS model matched well with experimental data. Based on this validated TENS model, threshold current variation were further investigated under different stimulating electrode sizes with varied fiber diameters. The computational results showed that the threshold current intensity increased with electrode size, and larger nerve fibers were recruited at lower current intensities. These results were comparable to our psychophysical experimental data from six healthy subjects. This novel 3D TENS model would further guide the floorplan of the surface electrodes, and the stimulating paradigms for tactile sensory feedback.

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Characterization of evoked tactile sensation in forearm amputees with transcutaneous electrical nerve stimulation

Abstract: The stable PFM and sensory thresholds of ETS are desirable for a non-invasive neural interface that can feed back finger-specific tactile information from the prosthetic hand to forearm amputees.

Cited by 103 publications

References 71 publications

Burst‐modulated wide‐pulse neuromuscular electrical stimulation enhances H‐reflex recruitment in rats

Burst‐modulated wide‐pulse neuromuscular electrical stimulation enhances H‐reflex recruitment in rats

Evoked haptic sensations in the hand via non-invasive proximal nerve stimulation

A 3D Computational Model of Transcutaneous Electrical Nerve Stimulation for Estimating Aβ Tactile Nerve Fiber Excitability

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