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The Organization of Stepping in Patients with Parkinson’s Disease: Bradykinesia or Discoordination?

Published online by Cambridge University Press:  18 September 2015

Anne Beuter*
Affiliation:
Département de Kinanthropologie, Université du Québec à Montréal (A.B., L.C., B.M.), Centre for Nonlinear Dynamics in Physiology & Medicine (McGill) (A.B.) and McGill Center for Studies in Aging (S.G.)
Lise Carrière*
Affiliation:
Département de Kinanthropologie, Université du Québec à Montréal (A.B., L.C., B.M.), Centre for Nonlinear Dynamics in Physiology & Medicine (McGill) (A.B.) and McGill Center for Studies in Aging (S.G.)
Bradford McFadyen*
Affiliation:
Département de Kinanthropologie, Université du Québec à Montréal (A.B., L.C., B.M.), Centre for Nonlinear Dynamics in Physiology & Medicine (McGill) (A.B.) and McGill Center for Studies in Aging (S.G.)
Serge Gauthier*
Affiliation:
Département de Kinanthropologie, Université du Québec à Montréal (A.B., L.C., B.M.), Centre for Nonlinear Dynamics in Physiology & Medicine (McGill) (A.B.) and McGill Center for Studies in Aging (S.G.)
*
Département de Kinanthropologie, Université du Québec à Montréal, CP 8888, Suc A, Montréal, Québec, Canada H3C 3P8
Département de Kinanthropologie, Université du Québec à Montréal, CP 8888, Suc A, Montréal, Québec, Canada H3C 3P8
Département de Kinanthropologie, Université du Québec à Montréal, CP 8888, Suc A, Montréal, Québec, Canada H3C 3P8
Département de Kinanthropologie, Université du Québec à Montréal, CP 8888, Suc A, Montréal, Québec, Canada H3C 3P8
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Abstract:

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The purpose of this experiment was to quantify and analyse multijoint coordination of patients with Parkinson’s disease (N=5) and control subjects (N=5) during forward and backward stepping motions executed at different cadences. Coordinates of reflective markers placed on the shoulder, hip, knee, ankle and metatarsal joints were recorded in the sagittal plane using a video motion analysis system. Kinematic and kinetic analyses provided angular displacements and velocities as well as joint moments of force and powers. Results suggest the presence of two types of discoordination: one type is velocity-dependent, hence related to bradykinesia, whereas the other type appears to reflect qualitatively different coordination patterns.

Type
Articles
Copyright
Copyright © Canadian Neurological Sciences Federation 1992

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