The effect of EMG triggered electrical stimulation plus task practice on arm function in chronic stroke patients with moderate-severe arm deficits

B.J Singer; A.M. Vallence; S. Cleary; I. Cooper; A.M Loftus

doi:10.3233/RNN-130319

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The effect of EMG triggered electrical stimulation plus task practice on arm function in chronic stroke patients with moderate-severe arm deficits

Journal article

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The effect of EMG triggered electrical stimulation plus task practice on arm function in chronic stroke patients with moderate-severe arm deficits

B.J Singer, A.M. Vallence, S. Cleary, I. Cooper and A.M Loftus

Restorative Neurology and Neuroscience, Vol.31(6), pp.681-691

2013

DOI: https://doi.org/10.3233/RNN-130319

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Abstract

PURPOSE: We examined the feasibility and outcome of electromyographically triggered electrical muscle stimulation (EMG-ES) plus unilateral or bilateral task specific practice on arm function in chronic stroke survivors with moderate-severe hemiplegia. Transcranial magnetic stimulation was used to examine inter-hemispheric inhibition (IHI) acting on the stroke-affected hemisphere in a subset of eight participants. METHODS: Twenty-one stroke survivors (14 males; mean time post stroke 57.9 months) participated in this pilot investigation. Participants underwent a six-week program of daily EMG-ES training with random assignment to concurrent task practice using the stroke-affected hand only or both hands. The upper-extremity subscale of the Fugl-Meyer (FMUE) and the Arm Motor Ability Test (AMAT) were completed at baseline, 0-, 1-, and 3-months post-intervention. RESULTS: Following the intervention, FMUE (F(3, 57) = 3.89, p = .01, etap2 = .17) and AMAT (F(3, 57) = 12.6, p = .01, etap2 = .39) scores improved, and remained better than baseline at three months re-assessment. The difference between groups was not significant. A non-significant decrease in IHI was observed post-intervention. CONCLUSIONS: An intensive program of EMG-ES assisted functional training is feasible, well tolerated, and leads to improvements in moderate-severe deficits of arm function post stroke. Larger placebo controlled studies are needed to explore any advantage of bilateral over unilateral EMG-ES assisted training.

Details

Title: The effect of EMG triggered electrical stimulation plus task practice on arm function in chronic stroke patients with moderate-severe arm deficits
Authors/Creators: B.J Singer (Author/Creator) - The University of Western Australia
A.M. Vallence (Author/Creator) - School of Psychological Science
S. Cleary (Author/Creator) - School of Psychological Science
I. Cooper (Author/Creator) - School of Surgery
A.M Loftus (Author/Creator) - School of Psychological Science
Publication Details: Restorative Neurology and Neuroscience, Vol.31(6), pp.681-691
Publisher: IOS Press
Identifiers: 991005546351007891
Copyright: The Author
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 1 Clinical & Life Sciences; 1.82 Gait & Posture; 1.82.866 Stroke Rehabilitation
Web Of Science research areas: Neurosciences
ESI research areas: Neuroscience & Behavior