A Virtual Reality Muscle–Computer Interface for Neurorehabilitation in Chronic Stroke: A Pilot Study
| Autor: | Christopher M. Laine, James M. Finley, Kaori L. Ito, Miranda Rennie, Sook-Lei Liew, Octavio Marin-Pardo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Male
030506 rehabilitation electromyography medicine.medical_treatment Pilot Projects Electromyography lcsh:Chemical technology Biochemistry Analytical Chemistry User-Computer Interface 0302 clinical medicine lcsh:TP1-1185 Instrumentation Stroke Rehabilitation medicine.diagnostic_test Neurological Rehabilitation Stroke Rehabilitation Virtual Reality Middle Aged stroke Atomic and Molecular Physics and Optics Treatment Outcome Female 0305 other medical science Stroke recovery biofeedback Adult medicine.medical_specialty Biofeedback Article co-contraction 03 medical and health sciences Physical medicine and rehabilitation medicine Humans Electrical and Electronic Engineering corticomuscular coherence Neurorehabilitation Brain–computer interface Aged neurorehabilitation business.industry Computers brain–computer interface Recovery of Function medicine.disease Neurofeedback business 030217 neurology & neurosurgery |
| Zdroj: | Sensors (Basel, Switzerland) Sensors, Vol 20, Iss 3754, p 3754 (2020) Sensors Volume 20 Issue 13 |
| ISSN: | 1424-8220 |
| Popis: | Severe impairment of limb movement after stroke can be challenging to address in the chronic stage of stroke (e.g., greater than 6 months post stroke). Recent evidence suggests that physical therapy can still promote meaningful recovery after this stage, but the required high amount of therapy is difficult to deliver within the scope of standard clinical practice. Digital gaming technologies are now being combined with brain&ndash computer interfaces to motivate engaging and frequent exercise and promote neural recovery. However, the complexity and expense of acquiring brain signals has held back widespread utilization of these rehabilitation systems. Furthermore, for people that have residual muscle activity, electromyography (EMG) might be a simpler and equally effective alternative. In this pilot study, we evaluate the feasibility and efficacy of an EMG-based variant of our REINVENT virtual reality (VR) neurofeedback rehabilitation system to increase volitional muscle activity while reducing unintended co-contractions. We recruited four participants in the chronic stage of stroke recovery, all with severely restricted active wrist movement. They completed seven 1-hour training sessions during which our head-mounted VR system reinforced activation of the wrist extensor muscles without flexor activation. Before and after training, participants underwent a battery of clinical and neuromuscular assessments. We found that training improved scores on standardized clinical assessments, equivalent to those previously reported for brain&ndash computer interfaces. Additionally, training may have induced changes in corticospinal communication, as indexed by an increase in 12&ndash 30 Hz corticomuscular coherence and by an improved ability to maintain a constant level of wrist muscle activity. Our data support the feasibility of using muscle&ndash computer interfaces in severe chronic stroke, as well as their potential to promote functional recovery and trigger neural plasticity. |
| Databáze: | OpenAIRE |
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