Quantification of Upper Limb Motor Recovery and EEG Power Changes after Robot-Assisted Bilateral Arm Training in Chronic Stroke Patients: A Prospective Pilot Study

Neural Plasticity
Marialuisa GandolfiNicola Smania

Abstract

Bilateral arm training (BAT) has shown promise in expediting progress toward upper limb recovery in chronic stroke patients, but its neural correlates are poorly understood. To evaluate changes in upper limb function and EEG power after a robot-assisted BAT in chronic stroke patients. In a within-subject design, seven right-handed chronic stroke patients with upper limb paresis received 21 sessions (3 days/week) of the robot-assisted BAT. The outcomes were changes in score on the upper limb section of the Fugl-Meyer assessment (FM), Motricity Index (MI), and Modified Ashworth Scale (MAS) evaluated at the baseline (T0), posttraining (T1), and 1-month follow-up (T2). Event-related desynchronization/synchronization were calculated in the upper alpha and the beta frequency ranges. Significant improvement in all outcomes was measured over the course of the study. Changes in FM were significant at T2, and in MAS at T1 and T2. After training, desynchronization on the ipsilesional sensorimotor areas increased during passive and active movement, as compared with T0. A repetitive robotic-assisted BAT program may improve upper limb motor function and reduce spasticity in the chronically impaired paretic arm. Effects on spasticity were ass...Continue Reading

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Citations

Aug 2, 2018·Frontiers in Neuroinformatics·Antonio CerasaPaolo Tonin
Oct 15, 2019·Restorative Neurology and Neuroscience·Mary Ellen StoykovDaniel M Corcos
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May 28, 2021·European Journal of Physical and Rehabilitation Medicine·Marialuisa GandolfiUNKNOWN Italian Consensus Conference on Robotics in Neurorehabilitation (CICERONE)

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Software Mentioned

MRIcron
ch2bet
MATLAB
Geodesic
SPSS
EEGLAB

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Acute Stroke

A stroke occurs when blood supply to the brain is interrupted depriving the brain of oxygen and nutrients. This feed focuses cerebrovascular accidents including ischemic and paralytic stroke.

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