Mary Ellen Stoykov1,2, Erin King3, Fabian J David4, Amanda Vatinno5, Louis Fogg6, Daniel M Corcos3,4. 1. Shirley Ryan Ability Lab, Chicago, IL, USA. 2. Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, USA. 3. Interdepartmental Neuroscience Program, Northwestern University, Chicago, IL, USA. 4. Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, IL, USA. 5. Department of Health Sciences and Research, Medical College of South Carolina, Charleston, SC, USA. 6. Department of Nursing, Rush University Medical Center, Chicago, IL, USA.
Abstract
BACKGROUND:Bilateral priming, device assisted bilateral symmetrical wrist flexion/extension, is a noninvasive neuromodulation technique that can be used in the clinic. OBJECTIVE: We examined the additive effect of bilateral motor priming and task specific training in individuals with severe upper limb hemiparesis. METHODS: This is a parallel assignment, single-masked, randomized exploratory pilot study with three timepoints (pre-/post-intervention and follow up). Participants received either bilateral motor priming or health care education followed by task specific training. Sixteen participants who were at least 6 months post-stroke and had a Fugl Meyer Upper Extremity (FMUE) score between 23 and 38 were randomized. Our primary and secondary measures were Chedoke Arm & Hand Activity Index 9 (CAHAI-9) and the FMUE respectively. We determined changes in interhemispheric inhibition using transcranial magnetic stimulation. We hypothesized that improvement in the priming group would persist at follow up. RESULTS: There was no between-group difference in the CAHAI. The improvement in the FMUE was significantly greater in the experimental group at follow up (t = 2.241, p = 0.045). CONCLUSIONS: Both groups improved in the CAHAI. There was a significant between-group difference in the secondary outcome measure (FMUE) where the bilateral priming group had an average increase of 10 points from pre-intervention to follow up.
RCT Entities:
BACKGROUND: Bilateral priming, device assisted bilateral symmetrical wrist flexion/extension, is a noninvasive neuromodulation technique that can be used in the clinic. OBJECTIVE: We examined the additive effect of bilateral motor priming and task specific training in individuals with severe upper limb hemiparesis. METHODS: This is a parallel assignment, single-masked, randomized exploratory pilot study with three timepoints (pre-/post-intervention and follow up). Participants received either bilateral motor priming or health care education followed by task specific training. Sixteen participants who were at least 6 months post-stroke and had a Fugl Meyer Upper Extremity (FMUE) score between 23 and 38 were randomized. Our primary and secondary measures were Chedoke Arm & Hand Activity Index 9 (CAHAI-9) and the FMUE respectively. We determined changes in interhemispheric inhibition using transcranial magnetic stimulation. We hypothesized that improvement in the priming group would persist at follow up. RESULTS: There was no between-group difference in the CAHAI. The improvement in the FMUE was significantly greater in the experimental group at follow up (t = 2.241, p = 0.045). CONCLUSIONS: Both groups improved in the CAHAI. There was a significant between-group difference in the secondary outcome measure (FMUE) where the bilateral priming group had an average increase of 10 points from pre-intervention to follow up.
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