Stroke Clinical Trial
Official title:
Novel Brain Signal Feedback Paradigm to Enhance Motor Learning After Stroke
Verified date | May 2020 |
Source | VA Office of Research and Development |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Stroke (795,000/year in the US and 30 million existing stroke survivors in the world) damages brain neural structures that control coordinated upper limb movement. To most effectively target the brain damage, interventions should be directed so as to restore brain control serving coordination of peripheral neuromuscular function. Currently, there is a lack of a transformative intervention strategy, and only limited efficacy is seen in response to neural rehabilitation that is only peripherally-directed (limbs e.g.) or only directed at the brain. This study will employ a novel neural feedback approach with a closed-loop, real-time paradigm to engage and retrain existing brain function after stroke. Real-time functional magnetic resonance imaging (rtfMIR) provides neural feedback with the advantage of precisely identifying the location of brain activity for multiple cognitive and emotional tasks. However, the rtfMRI is costly and precludes motor learning that requires sitting and engaging the upper limb in complex motor tasks during imaging acquisition. In contrast, real-time functional near-infrared spectroscopy (rtfNIRS), although not as spatially precise as rtfMRI, offers a low-cost, portable solution to provide brain neural feedback during motor learning. This proposal will utilize both technologies in a hybrid, sequential motor learning protocol. Moreover, the study protocol will also simultaneously involve both central effective signals (through neural feedback) and peripheral affective signals by employing neutrally-triggered functional electrical stimulation (FES)-assisted coordination practice, which produces peripherally-induced affective signals from muscle and joint receptors. This novel combination intervention protocol will engage the central nervous system, motor effective pathway training along with induction of affective signal production (FES-assisted practice), all of which will be implemented within the framework of evidence-based motor learning principles.
Status | Completed |
Enrollment | 4 |
Est. completion date | September 28, 2018 |
Est. primary completion date | August 1, 2018 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 21 Years to 88 Years |
Eligibility |
Inclusion Criteria: - Cognition sufficiently intact to give valid informed consent to participate.* - Sufficient endurance to participate in rehabilitation sessions. - Ability to follow 2 stage commands. - Medically Stable - Age > 21 years. - Impaired upper limb function as follows: impaired ability to flex and extend the wrist. - At least 5 degrees of wrist flexion and extension of the wrist. - Passive ROM of wrist extension of at least 20 degrees. - At least 6 months post stroke. Exclusion Criteria: - Metal implants, pacemaker, claustrophobia, inability to operate the MRI patient call button or any other contraindications for MRI. - Acute or progressive cardiac (including cardiac arrhythmias), renal, respiratory, neurological disorders or malignancy. - Active psychiatric diagnosis or psychological condition, or active drug/alcohol abuse. - Lower motor neuron damage or radiculopathy. - More than one stroke. - Pregnancy (discontinued from the study, if a woman becomes pregnant). * The combined scores for the Aid to Capacity Evaluation (ACE) and Mini-Mental Status Examination (MMSE) as follows: - MMSE 24-30 + the ACE score that states 'definitely capable' - MMSE 17 - 23 + the ACE score that states 'probably capable' |
Country | Name | City | State |
---|---|---|---|
United States | North Florida/South Georgia Veterans Health System, Gainesville, FL | Gainesville | Florida |
Lead Sponsor | Collaborator |
---|---|
VA Office of Research and Development |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Arm Motor Abilities Test Functional Domain (AMAT - F) | AMAT-F is a measure of 13 complex, coordinated tasks used in everyday living: functional normality of movement during the 13 tasks. Minimum clinically important difference (MCID) is 0.44 change score. AMAT-F : Arm Motor Abilities Test, functional domain. minimum = 0 points. maximum = 5 points. 5 points is normal function. |
change score from baseline to post-treatment; approximately 3 months. | |
Secondary | Change Score From Baseline to Post Treatment for the Fugl Meyer Coordination Scale | FM: Fugl-Meyer Coordination Scale: arm/hand coordination of isolated joint movement. The minimum clinically important difference (MCID) is 4.25 points. FM: 0 points, no movement; 66 points, normal coordination throughout the upper limb. |
from baseline to post-treatment, approximately 3 months |
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