Aged; Electrodes; Female; Gray Matter/pathology/physiopathology; Humans; Magnetic Resonance Imaging; Male; Middle Aged; Motor Cortex/pathology/physiopathology; Stroke/pathology/physiopathology/therapy; Stroke Rehabilitation; Transcranial Direct Current Stimulation
Abstract :
[en] Anodal transcranial direct current stimulation (tDCS) can boost the effects of motor training and facilitate plasticity in the healthy human brain. Motor rehabilitation depends on learning and plasticity, and motor learning can occur after stroke. We tested whether brain stimulation using anodal tDCS added to motor training could improve rehabilitation outcomes in patients after stroke. We performed a randomized, controlled trial in 24 patients at least 6 months after a first unilateral stroke not directly involving the primary motor cortex. Patients received either anodal tDCS (n= 11) or sham treatment (n= 13) paired with daily motor training for 9 days. We observed improvements that persisted for at least 3 months post-intervention after anodal tDCS compared to sham treatment on the Action Research Arm Test (ARAT) and Wolf Motor Function Test (WMFT) but not on the Upper Extremity Fugl-Meyer (UEFM) score. Functional magnetic resonance imaging (MRI) showed increased activity during movement of the affected hand in the ipsilesional motor and premotor cortex in the anodal tDCS group compared to the sham treatment group. Structural MRI revealed intervention-related increases in gray matter volume in cortical areas, including ipsilesional motor and premotor cortex after anodal tDCS but not sham treatment. The addition of ipsilesional anodal tDCS to a 9-day motor training program improved long-term clinical outcomes relative to sham treatment in patients after stroke.
Disciplines :
Human health sciences: Multidisciplinary, general & others
Author, co-author :
Allman, Claire
Amadi, Ugwechi
Winkler, Anderson ; Université de Liège - ULiège > Form. doc. sc. bioméd. & pharma.
Wilkins, Leigh
Filippini, Nicola
Kischka, Udo
Stagg, Charlotte J.
Johansen-Berg, Heidi
Language :
English
Title :
Ipsilesional anodal tDCS enhances the functional benefits of rehabilitation in patients after stroke.
Publication date :
2016
Journal title :
Science Translational Medicine
ISSN :
1946-6234
eISSN :
1946-6242
Publisher :
American Association for the Advancement of Science, United States
Volume :
8
Issue :
330
Pages :
330re1
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2016, American Association for the Advancement of Science.
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