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. 2019 Nov 2;19(21):4764. doi: 10.3390/s19214764

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Radar charts of the kinematic parameters for upper and lower limb tasks. Mean values of the most significant kinematic parameters for healthy control (HC) and Parkinson’s disease (PD) subjects, grouped by severity classes according to the “video” scores assigned by N1, decrease monotonically with the increase of the impairment severity (Table S1 in Supplementary Materials for the parameter list and their meaning). (a) Finger tapping; (b) closing–opening; (c) pronation–supination; (d) leg agility; (e) sit to stand; (f) gait and (g) legend for HC and PD severity classes (HC refers to healthy controls; PD₀ refers to UPDRS 0 severity class; PD₁ refers to UPDRS 1 severity class; PD₂ refers to UPDRS 2 severity class; PD₃ refers to UPDRS 3 severity class).