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Validation of GDI, GPS and GVS for use in Parkinson's disease through evaluation of effects of subthalamic deep brain stimulation and levodopa.
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Gait Posture 2014 Jan;
Authors: Danielli Souza Speciali, Jo„o Carlos Ferrari CorrÍa, NatŠlia Mariana Luna, Rachael Brant, Julia Maria D'Andrea Greve, Wagner de Godoy, Richard Baker, Paulo Roberto Garcia Lucareli
The Gait Deviation Index (GDI), Gait Profile Score (GPS) and Gait Variable Scores (GVSs) have been proposed as measures of gait quality and validated for use with children with cerebral palsy. The aim of this study was to extend this validation to people with Parkinson's disease by evaluating the effects of subthalamic deep brain stimulation and levodopa on gait. 16 participants had their gait evaluated with stimulation, medication or a combination of both. The Unified Parkinson's Disease Rating Scale (UPDRS) showed statistically significant differences in agreement with previous studies. The GPS and GDI showed similar treatment effects as did GVS for hip and knee flexion/extension, as assessed with Cohen's d where medium or large. Overall the results suggest that these gait indices are sensitive to treatment in this group of patients and that their use in groups other than children with cerebral palsy is valid.
PMID: 24548797 [PubMed - as supplied by publisher]