Challenging context affects standing reach kinematics among Parkinson's disease patients.
Identifieur interne : 001A79 ( Main/Exploration ); précédent : 001A78; suivant : 001A80Challenging context affects standing reach kinematics among Parkinson's disease patients.
Auteurs : Jon B. Doan [Canada] ; Ian Q. Whishaw ; Sergio M. Pellis ; Oksana Suchowersky ; Natalie De Bruin ; Lesley A. BrownSource :
- Behavioural brain research [ 1872-7549 ] ; 2010.
English descriptors
- KwdEn :
- MESH :
- physiology : Biomechanical Phenomena, Motor Skills, Posture.
- physiopathology : Parkinson Disease.
- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged.
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 (0.6m) 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.
DOI: 10.1016/j.bbr.2010.05.006
PubMed: 20478337
Affiliations:
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Pellis</name></author><author><name sortKey="Suchowersky, Oksana" sort="Suchowersky, Oksana" uniqKey="Suchowersky O" first="Oksana" last="Suchowersky">Oksana Suchowersky</name></author><author><name sortKey="De Bruin, Natalie" sort="De Bruin, Natalie" uniqKey="De Bruin N" first="Natalie" last="De Bruin">Natalie De Bruin</name></author><author><name sortKey="Brown, Lesley A" sort="Brown, Lesley A" uniqKey="Brown L" first="Lesley A" last="Brown">Lesley A. Brown</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20478337</idno><idno type="pmid">20478337</idno><idno type="doi">10.1016/j.bbr.2010.05.006</idno><idno type="wicri:Area/PubMed/Corpus">000C83</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000C83</idno><idno type="wicri:Area/PubMed/Curation">000C83</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000C83</idno><idno type="wicri:Area/PubMed/Checkpoint">000C83</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000C83</idno><idno type="wicri:Area/Ncbi/Merge">000C67</idno><idno type="wicri:Area/Ncbi/Curation">000C67</idno><idno type="wicri:Area/Ncbi/Checkpoint">000C67</idno><idno type="wicri:Area/Main/Merge">001B90</idno><idno type="wicri:Area/Main/Curation">001A79</idno><idno type="wicri:Area/Main/Exploration">001A79</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Challenging context affects standing reach kinematics among Parkinson's disease patients.</title><author><name sortKey="Doan, Jon B" sort="Doan, Jon B" uniqKey="Doan J" first="Jon B" last="Doan">Jon B. Doan</name><affiliation wicri:level="1"><nlm:affiliation>Department of Kinesiology + Physical Education, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada. Jon.doan@uleth.ca</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Kinesiology + Physical Education, University of Lethbridge, Lethbridge, AB T1K 3M4</wicri:regionArea><wicri:noRegion>AB T1K 3M4</wicri:noRegion></affiliation></author><author><name sortKey="Whishaw, Ian Q" sort="Whishaw, Ian Q" uniqKey="Whishaw I" first="Ian Q" last="Whishaw">Ian Q. Whishaw</name></author><author><name sortKey="Pellis, Sergio M" sort="Pellis, Sergio M" uniqKey="Pellis S" first="Sergio M" last="Pellis">Sergio M. Pellis</name></author><author><name sortKey="Suchowersky, Oksana" sort="Suchowersky, Oksana" uniqKey="Suchowersky O" first="Oksana" last="Suchowersky">Oksana Suchowersky</name></author><author><name sortKey="De Bruin, Natalie" sort="De Bruin, Natalie" uniqKey="De Bruin N" first="Natalie" last="De Bruin">Natalie De Bruin</name></author><author><name sortKey="Brown, Lesley A" sort="Brown, Lesley A" uniqKey="Brown L" first="Lesley A" last="Brown">Lesley A. Brown</name></author></analytic><series><title level="j">Behavioural brain research</title><idno type="eISSN">1872-7549</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term><term>Aged, 80 and over</term><term>Biomechanical Phenomena (physiology)</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Motor Skills (physiology)</term><term>Parkinson Disease (physiopathology)</term><term>Posture (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Biomechanical Phenomena</term><term>Motor Skills</term><term>Posture</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Parkinson Disease</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Aged, 80 and over</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term></keywords></textClass></profileDesc></teiHeader><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 (0.6m) 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></TEI><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Brown, Lesley A" sort="Brown, Lesley A" uniqKey="Brown L" first="Lesley A" last="Brown">Lesley A. Brown</name><name sortKey="De Bruin, Natalie" sort="De Bruin, Natalie" uniqKey="De Bruin N" first="Natalie" last="De Bruin">Natalie De Bruin</name><name sortKey="Pellis, Sergio M" sort="Pellis, Sergio M" uniqKey="Pellis S" first="Sergio M" last="Pellis">Sergio M. Pellis</name><name sortKey="Suchowersky, Oksana" sort="Suchowersky, Oksana" uniqKey="Suchowersky O" first="Oksana" last="Suchowersky">Oksana Suchowersky</name><name sortKey="Whishaw, Ian Q" sort="Whishaw, Ian Q" uniqKey="Whishaw I" first="Ian Q" last="Whishaw">Ian Q. Whishaw</name></noCountry><country name="Canada"><noRegion><name sortKey="Doan, Jon B" sort="Doan, Jon B" uniqKey="Doan J" first="Jon B" last="Doan">Jon B. Doan</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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