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Quantitative analysis of gait in Parkinson's disease: a pilot study on the effects of bilateral sub-thalamic
Maurizio Ferrarin1, L Lopiano, M Rizzone
1Centro di Bioingegneria, Fondazione Don Carlo Gnocchi ONLUS, Politecnico di Milano, Milan, Italy. ferramau@mail.cbi.polimi.it
Abstract:
Four patients with Parkinson's disease who had a Subthalamic Nucleus (STN) stimulator implanted and four age-matched controls underwent gait analysis using a three-dimensional system. STN stimulation substantially improved most of the key variables in the patients, without producing inefficient compensatory movements of the trunk. A reduction of ankle power production during push off was the most persistent abnormality seen when the patients were stimulated. We also found a reduction of trunk lateral bending and torsion when the patients were not stimulated when compared with controls.