OBJECTIVE: To study changes in motor cortex representations after a single session of physiotherapy in stroke patients. METHODS: TMS mapping was used to evaluate the motor output map of the abductor pollicis brevis (APB) in both hemispheres. Stroke patients (4-8 weeks after the infarction) were studied prior to a training session aimed at improving dexterity and 1 h and 1 day after the training. RESULTS: Prior to the training, the APB representation area in the affected hemisphere was significantly smaller than on the non-affected side. After therapy, the cortical motor output to the paretic APB was significantly enlarged, and motor function was improved. One day later, these effects were partially reversed. Motor thresholds remained significantly increased in the affected hemisphere before and after the therapy. CONCLUSION: A single session of physiotherapy produces a use-dependent enlargement of motor cortex representations paralleled by an improvement of motor function in stroke patients.
OBJECTIVE: To study changes in motor cortex representations after a single session of physiotherapy in strokepatients. METHODS: TMS mapping was used to evaluate the motor output map of the abductor pollicis brevis (APB) in both hemispheres. Strokepatients (4-8 weeks after the infarction) were studied prior to a training session aimed at improving dexterity and 1 h and 1 day after the training. RESULTS: Prior to the training, the APB representation area in the affected hemisphere was significantly smaller than on the non-affected side. After therapy, the cortical motor output to the paretic APB was significantly enlarged, and motor function was improved. One day later, these effects were partially reversed. Motor thresholds remained significantly increased in the affected hemisphere before and after the therapy. CONCLUSION: A single session of physiotherapy produces a use-dependent enlargement of motor cortex representations paralleled by an improvement of motor function in strokepatients.
Authors: Keith M McGregor; Haley Carpenter; Erin Kleim; Atchar Sudhyadhom; Keith D White; Andrew J Butler; Jeffrey Kleim; Bruce Crosson Journal: Exp Brain Res Date: 2012-03-31 Impact factor: 1.972
Authors: Lorie G Richards; Kim C Stewart; Michelle L Woodbury; Claudia Senesac; James H Cauraugh Journal: Neuropsychologia Date: 2007-08-24 Impact factor: 3.139