ParkinsonCanadaV1, Main, Exploration, bibRecord, 001D34

Challenging context affects standing reach kinematics among Parkinson's disease patients

Identifieur interne : 001D34 ( Main/Exploration ); précédent : 001D33; suivant : 001D35

Challenging context affects standing reach kinematics among Parkinson's disease patients

Auteurs : Jon B. Doan [Canada] ; Ian Q. Whishaw [Canada] ; Sergio M. Pellis [Canada] ; Oksana Suchowersky [Canada] ; Natalie De Bruin [Canada] ; Lesleya. Brown [Canada]

Source :

Behavioural brain research [ 0166-4328 ] ; 2010.

RBID : Pascal:10-0424938

Descripteurs français

Pascal (Inist)
- Contexte, Cinématique, Maladie de Parkinson, Posture, Contrôle moteur, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Context, Human, Kinematics, Motor control, Parkinson disease, Posture.

Abstract

The standing reach movement requires coordinated activation of postural and focal motor responses. For PD patients, both components of this reaching task exhibit evidence of motor deficit. In the present experiment, we examined these motor responses during a standing reaching task in a challenging environmental context. PD patients (n=10) and control participants (n=8) were asked to reach and drink from a glass while standing on a raised platform (0.6 m) with and without an additional anterior platform. Removal of the anterior platform placed participants in a higher postural threat context. Displacement data were captured from markers on relevant body landmarks to provide reach end-point and whole-body movement kinematics. Our results showed that PD patients delayed trunk flexion and peak end-point velocity during the forward reach phase and peak centre of mass velocity during the transport phase for a challenged standing reach. These behaviours, in combination with the bradykinetic motor control observed in PD patients, could contribute to the frequent falls observed among the PD population.

Affiliations:

Links toward previous steps (curation, corpus...)

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Le document en format XML

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<front><div type="abstract" xml:lang="en">The standing reach movement requires coordinated activation of postural and focal motor responses. For PD patients, both components of this reaching task exhibit evidence of motor deficit. In the present experiment, we examined these motor responses during a standing reaching task in a challenging environmental context. PD patients (n=10) and control participants (n=8) were asked to reach and drink from a glass while standing on a raised platform (0.6 m) with and without an additional anterior platform. Removal of the anterior platform placed participants in a higher postural threat context. Displacement data were captured from markers on relevant body landmarks to provide reach end-point and whole-body movement kinematics. Our results showed that PD patients delayed trunk flexion and peak end-point velocity during the forward reach phase and peak centre of mass velocity during the transport phase for a challenged standing reach. These behaviours, in combination with the bradykinetic motor control observed in PD patients, could contribute to the frequent falls observed among the PD population.</div>
</front>
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<name sortKey="Suchowersky, Oksana" sort="Suchowersky, Oksana" uniqKey="Suchowersky O" first="Oksana" last="Suchowersky">Oksana Suchowersky</name>
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	La maladie de Parkinson au Canada (serveur d'exploration)
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La maladie de Parkinson au Canada (serveur d'exploration)

Challenging context affects standing reach kinematics among Parkinson's disease patients

Challenging context affects standing reach kinematics among Parkinson's disease patients

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri