Sudden turn during walking is impaired in people with Parkinson's disease
Identifieur interne : 002377 ( Main/Exploration ); précédent : 002376; suivant : 002378Sudden turn during walking is impaired in people with Parkinson's disease
Auteurs : Margaret K. Y. Mak [Hong Kong] ; Aftab Patla [Canada] ; Christina Hui-Chan [Hong Kong]Source :
- Experimental brain research [ 0014-4819 ] ; 2008.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Homme.
English descriptors
- KwdEn :
Abstract
The present study compared kinematic strategies for making sudden directional changes during walking between patients with Parkinson's disease (PwPD) and age-matched controls. Ten PwPD and 10 healthy elderly were visually cued to walk straight or to turn either 30° or 60° to the left or right, at the mid-point of a 9-m walkway. Three-dimensional kinematic data recorded: (1) the onset time of body segments in response to the turning cue, and (2) step width at the first ipsilateral foot contact (IFC1) marking the beginning of turn, the subsequent contralateral foot contact (CFC), and the second ipsilateral foot contact (IFC2) marking the completion of turn. For both 30° and 60° turns, PwPD had later onset times for lateral foot displacement, and larger time lags between the onset of body CoM and the lateral foot translation than healthy subjects (P < 0.05). Furthermore, PwPD had a significantly narrower step width than healthy subjects (P < 0.05). Despite these differences, PwPD and control subjects scaled up turning speed and amplitude similarly for 30° and 60° turns. Our findings suggested that PwPD manifested specific difficulty in modifying their ongoing motor program to switch their locomotion from straight line to sideway direction, but their ability to scale movement speed and amplitude appeared to be preserved.
Affiliations:
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Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Sudden turn during walking is impaired in people with Parkinson's disease</title><author><name sortKey="Mak, Margaret K Y" sort="Mak, Margaret K Y" uniqKey="Mak M" first="Margaret K. Y." last="Mak">Margaret K. Y. Mak</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Rehabilitation Sciences, The Hong Kong Polytechnic University</s1><s2>Hung Hom, Kowloon</s2><s3>HKG</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Hong Kong</country><wicri:noRegion>Hung Hom, Kowloon</wicri:noRegion></affiliation></author><author><name sortKey="Patla, Aftab" sort="Patla, Aftab" uniqKey="Patla A" first="Aftab" last="Patla">Aftab Patla</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Kinesiology, University of Waterloo</s1><s2>Waterloo, ON</s2><s3>CAN</s3><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Waterloo, ON</wicri:noRegion></affiliation></author><author><name sortKey="Hui Chan, Christina" sort="Hui Chan, Christina" uniqKey="Hui Chan C" first="Christina" last="Hui-Chan">Christina Hui-Chan</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Rehabilitation Sciences, The Hong Kong Polytechnic University</s1><s2>Hung Hom, Kowloon</s2><s3>HKG</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Hong Kong</country><wicri:noRegion>Hung Hom, Kowloon</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">08-0401729</idno><date when="2008">2008</date><idno type="stanalyst">PASCAL 08-0401729 INIST</idno><idno type="RBID">Pascal:08-0401729</idno><idno type="wicri:Area/PascalFrancis/Corpus">000630</idno><idno type="wicri:Area/PascalFrancis/Curation">000680</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000512</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000512</idno><idno type="wicri:doubleKey">0014-4819:2008:Mak M:sudden:turn:during</idno><idno type="wicri:Area/Main/Merge">002573</idno><idno type="wicri:Area/Main/Curation">002377</idno><idno type="wicri:Area/Main/Exploration">002377</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Sudden turn during walking is impaired in people with Parkinson's disease</title><author><name sortKey="Mak, Margaret K Y" sort="Mak, Margaret K Y" uniqKey="Mak M" first="Margaret K. Y." last="Mak">Margaret K. Y. Mak</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Rehabilitation Sciences, The Hong Kong Polytechnic University</s1><s2>Hung Hom, Kowloon</s2><s3>HKG</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Hong Kong</country><wicri:noRegion>Hung Hom, Kowloon</wicri:noRegion></affiliation></author><author><name sortKey="Patla, Aftab" sort="Patla, Aftab" uniqKey="Patla A" first="Aftab" last="Patla">Aftab Patla</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Kinesiology, University of Waterloo</s1><s2>Waterloo, ON</s2><s3>CAN</s3><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Waterloo, ON</wicri:noRegion></affiliation></author><author><name sortKey="Hui Chan, Christina" sort="Hui Chan, Christina" uniqKey="Hui Chan C" first="Christina" last="Hui-Chan">Christina Hui-Chan</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Rehabilitation Sciences, The Hong Kong Polytechnic University</s1><s2>Hung Hom, Kowloon</s2><s3>HKG</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Hong Kong</country><wicri:noRegion>Hung Hom, Kowloon</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Experimental brain research</title><title level="j" type="abbreviated">Exp. brain res.</title><idno type="ISSN">0014-4819</idno><imprint><date when="2008">2008</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Experimental brain research</title><title level="j" type="abbreviated">Exp. brain res.</title><idno type="ISSN">0014-4819</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Body segment</term><term>Gait</term><term>Human</term><term>Kinematics</term><term>Locomotion</term><term>Motor program</term><term>Parkinson disease</term><term>Strategy</term><term>Translation</term><term>Walking</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Marche à pied</term><term>Cinématique</term><term>Stratégie</term><term>Segment corporel</term><term>Translation</term><term>Programme moteur</term><term>Locomotion</term><term>Allure</term><term>Maladie de Parkinson</term><term>Homme</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The present study compared kinematic strategies for making sudden directional changes during walking between patients with Parkinson's disease (PwPD) and age-matched controls. Ten PwPD and 10 healthy elderly were visually cued to walk straight or to turn either 30° or 60° to the left or right, at the mid-point of a 9-m walkway. Three-dimensional kinematic data recorded: (1) the onset time of body segments in response to the turning cue, and (2) step width at the first ipsilateral foot contact (IFC<sub>1</sub>) marking the beginning of turn, the subsequent contralateral foot contact (CFC), and the second ipsilateral foot contact (IFC<sub>2</sub>) marking the completion of turn. For both 30° and 60° turns, PwPD had later onset times for lateral foot displacement, and larger time lags between the onset of body CoM and the lateral foot translation than healthy subjects (P < 0.05). Furthermore, PwPD had a significantly narrower step width than healthy subjects (P < 0.05). Despite these differences, PwPD and control subjects scaled up turning speed and amplitude similarly for 30° and 60° turns. Our findings suggested that PwPD manifested specific difficulty in modifying their ongoing motor program to switch their locomotion from straight line to sideway direction, but their ability to scale movement speed and amplitude appeared to be preserved.</div></front></TEI><affiliations><list><country><li>Canada</li><li>Hong Kong</li></country></list><tree><country name="Hong Kong"><noRegion><name sortKey="Mak, Margaret K Y" sort="Mak, Margaret K Y" uniqKey="Mak M" first="Margaret K. Y." last="Mak">Margaret K. Y. Mak</name></noRegion><name sortKey="Hui Chan, Christina" sort="Hui Chan, Christina" uniqKey="Hui Chan C" first="Christina" last="Hui-Chan">Christina Hui-Chan</name></country><country name="Canada"><noRegion><name sortKey="Patla, Aftab" sort="Patla, Aftab" uniqKey="Patla A" first="Aftab" last="Patla">Aftab Patla</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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