Obstacle Avoidance amongst Parkinson Disease Patients Is Challenged in a Threatening Context
Identifieur interne : 000D15 ( Main/Exploration ); précédent : 000D14; suivant : 000D16Obstacle Avoidance amongst Parkinson Disease Patients Is Challenged in a Threatening Context
Auteurs : Jon B. Doan [Canada] ; Natalie De Bruin [Canada] ; Sergio M. Pellis [Canada] ; Oksana Suchowersky [Canada] ; Ian Q. Whishaw [Canada] ; Lesley A. Brown [Canada]Source :
- Journal of neurodegenerative diseases [ 2090-858X ] ; 2013.
Abstract
We examined whether people with Parkinson disease (PD) have difficulty negotiating a gait obstruction in threatening (gait path and obstacle raised above floor) and nonthreatening (gait path and obstacle at floor level) contexts. Ten PD patients were tested in both Meds OFF and Meds ON states, along with 10 age-matched controls. Participants completed 18 gait trials, walking 4.7 m at a self-selected speed while attempting to cross an obstacle 0.15 m in height placed near the centre point of the walkway. Kinematic and kinetic parameters were measured, and obstacle contact errors were tallied. Results indicated that PD patients made more obstacle contacts than control participants in the threatening context. Successful crossings by PD patients in the threatening condition also exhibited kinematic differences, with Meds OFF PD patients making shorter crossing steps, with decreased initiation and crossing velocities. The findings from this study lend support to the theory that PD patients rely on directed attention to initiate and control movement, while providing indication that the motor improvements provided by current PD pharmacotherapy may be limited by contextual interference. These movement patterns may be placing PD patients at risk of obstacle contact and falling.
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DOI: 10.1155/2013/787861
PubMed: 26316998
PubMed Central: 4437341
Affiliations:
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Doan</name><affiliation wicri:level="1"><nlm:aff id="I1">Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4</nlm:aff><country>Canada</country><wicri:regionArea>Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation></author><author><name sortKey="De Bruin, Natalie" sort="De Bruin, Natalie" uniqKey="De Bruin N" first="Natalie" last="De Bruin">Natalie De Bruin</name><affiliation wicri:level="1"><nlm:aff id="I1">Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4</nlm:aff><country>Canada</country><wicri:regionArea>Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation></author><author><name sortKey="Pellis, Sergio M" sort="Pellis, Sergio M" uniqKey="Pellis S" first="Sergio M." last="Pellis">Sergio M. Pellis</name><affiliation wicri:level="1"><nlm:aff id="I2">Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4</nlm:aff><country>Canada</country><wicri:regionArea>Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation><affiliation wicri:level="4"><nlm:aff id="I3">Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada T2N 1N4</nlm:aff><country>Canada</country><wicri:regionArea>Hotchkiss Brain Institute, University of Calgary, Calgary, AB</wicri:regionArea><orgName type="university">Université de Calgary</orgName><placeName><settlement type="city">Calgary</settlement><region type="state">Alberta</region></placeName></affiliation></author><author><name sortKey="Suchowersky, Oksana" sort="Suchowersky, Oksana" uniqKey="Suchowersky O" first="Oksana" last="Suchowersky">Oksana Suchowersky</name><affiliation wicri:level="1"><nlm:aff id="I4">Departments of Medicine (Neurology) and Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada T6G 2R3</nlm:aff><country>Canada</country><wicri:regionArea>Departments of Medicine (Neurology) and Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation></author><author><name sortKey="Whishaw, Ian Q" sort="Whishaw, Ian Q" uniqKey="Whishaw I" first="Ian Q." last="Whishaw">Ian Q. 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Doan</name><affiliation wicri:level="1"><nlm:aff id="I1">Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4</nlm:aff><country>Canada</country><wicri:regionArea>Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation></author><author><name sortKey="De Bruin, Natalie" sort="De Bruin, Natalie" uniqKey="De Bruin N" first="Natalie" last="De Bruin">Natalie De Bruin</name><affiliation wicri:level="1"><nlm:aff id="I1">Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4</nlm:aff><country>Canada</country><wicri:regionArea>Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation></author><author><name sortKey="Pellis, Sergio M" sort="Pellis, Sergio M" uniqKey="Pellis S" first="Sergio M." last="Pellis">Sergio M. Pellis</name><affiliation wicri:level="1"><nlm:aff id="I2">Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4</nlm:aff><country>Canada</country><wicri:regionArea>Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation><affiliation wicri:level="4"><nlm:aff id="I3">Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada T2N 1N4</nlm:aff><country>Canada</country><wicri:regionArea>Hotchkiss Brain Institute, University of Calgary, Calgary, AB</wicri:regionArea><orgName type="university">Université de Calgary</orgName><placeName><settlement type="city">Calgary</settlement><region type="state">Alberta</region></placeName></affiliation></author><author><name sortKey="Suchowersky, Oksana" sort="Suchowersky, Oksana" uniqKey="Suchowersky O" first="Oksana" last="Suchowersky">Oksana Suchowersky</name><affiliation wicri:level="1"><nlm:aff id="I4">Departments of Medicine (Neurology) and Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada T6G 2R3</nlm:aff><country>Canada</country><wicri:regionArea>Departments of Medicine (Neurology) and Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB</wicri:regionArea><wicri:noRegion>AB</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><affiliation wicri:level="1"><nlm:aff id="I2">Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4</nlm:aff><country>Canada</country><wicri:regionArea>Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation><affiliation wicri:level="4"><nlm:aff id="I3">Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada T2N 1N4</nlm:aff><country>Canada</country><wicri:regionArea>Hotchkiss Brain Institute, University of Calgary, Calgary, AB</wicri:regionArea><orgName type="university">Université de Calgary</orgName><placeName><settlement type="city">Calgary</settlement><region type="state">Alberta</region></placeName></affiliation></author><author><name sortKey="Brown, Lesley A" sort="Brown, Lesley A" uniqKey="Brown L" first="Lesley A." last="Brown">Lesley A. Brown</name><affiliation wicri:level="1"><nlm:aff id="I1">Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB, Canada T1K 3M4</nlm:aff><country>Canada</country><wicri:regionArea>Engineering and Human Performance Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation><affiliation wicri:level="4"><nlm:aff id="I3">Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada T2N 1N4</nlm:aff><country>Canada</country><wicri:regionArea>Hotchkiss Brain Institute, University of Calgary, Calgary, AB</wicri:regionArea><orgName type="university">Université de Calgary</orgName><placeName><settlement type="city">Calgary</settlement><region type="state">Alberta</region></placeName></affiliation></author></analytic><series><title level="j">Journal of neurodegenerative diseases</title><idno type="ISSN">2090-858X</idno><idno type="eISSN">2090-8601</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>We examined whether people with Parkinson disease (PD) have difficulty negotiating a gait obstruction in threatening (gait path and obstacle raised above floor) and nonthreatening (gait path and obstacle at floor level) contexts. Ten PD patients were tested in both Meds OFF and Meds ON states, along with 10 age-matched controls. Participants completed 18 gait trials, walking 4.7 m at a self-selected speed while attempting to cross an obstacle 0.15 m in height placed near the centre point of the walkway. Kinematic and kinetic parameters were measured, and obstacle contact errors were tallied. Results indicated that PD patients made more obstacle contacts than control participants in the threatening context. Successful crossings by PD patients in the threatening condition also exhibited kinematic differences, with Meds OFF PD patients making shorter crossing steps, with decreased initiation and crossing velocities. The findings from this study lend support to the theory that PD patients rely on directed attention to initiate and control movement, while providing indication that the motor improvements provided by current PD pharmacotherapy may be limited by contextual interference. These movement patterns may be placing PD patients at risk of obstacle contact and falling.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Stolze, H" uniqKey="Stolze H">H. Stolze</name></author><author><name sortKey="Klebe, S" uniqKey="Klebe S">S. Klebe</name></author><author><name sortKey="Zechlin, C" uniqKey="Zechlin C">C. Zechlin</name></author><author><name sortKey="Baecker, C" uniqKey="Baecker C">C. Baecker</name></author><author><name sortKey="Friege, L" uniqKey="Friege L">L. Friege</name></author><author><name sortKey="Deuschl, G" uniqKey="Deuschl G">G. Deuschl</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gray, P" uniqKey="Gray P">P. Gray</name></author><author><name sortKey="Hildebrand, K" uniqKey="Hildebrand K">K. Hildebrand</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bloem, B R" uniqKey="Bloem B">B. R. 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De Houwer</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Camicioli, R" uniqKey="Camicioli R">R. Camicioli</name></author><author><name sortKey="Oken, B S" uniqKey="Oken B">B. S. Oken</name></author><author><name sortKey="Sexton, G" uniqKey="Sexton G">G. Sexton</name></author><author><name sortKey="Kaye, J A" uniqKey="Kaye J">J. A. Kaye</name></author><author><name sortKey="Nutt, J G" uniqKey="Nutt J">J. G. Nutt</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Dirnberger, G" uniqKey="Dirnberger G">G. Dirnberger</name></author><author><name sortKey="Frith, C D" uniqKey="Frith C">C. D. Frith</name></author><author><name sortKey="Jahanshahi, M" uniqKey="Jahanshahi M">M. Jahanshahi</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Walsh, K" uniqKey="Walsh K">K. Walsh</name></author><author><name sortKey="Bennett, G" uniqKey="Bennett G">G. Bennett</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Adkin, A L" uniqKey="Adkin A">A. L. Adkin</name></author><author><name sortKey="Frank, J S" uniqKey="Frank J">J. S. Frank</name></author><author><name sortKey="Jog, M S" uniqKey="Jog M">M. S. Jog</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Morris, M E" uniqKey="Morris M">M. E. Morris</name></author><author><name sortKey="Iansek, R" uniqKey="Iansek R">R. Iansek</name></author><author><name sortKey="Matyas, T A" uniqKey="Matyas T">T. A. Matyas</name></author><author><name sortKey="Summers, J J" uniqKey="Summers J">J. J. Summers</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list><country><li>Canada</li></country><region><li>Alberta</li></region><settlement><li>Calgary</li></settlement><orgName><li>Université de Calgary</li></orgName></list><tree><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><name sortKey="Brown, Lesley A" sort="Brown, Lesley A" uniqKey="Brown L" first="Lesley A." last="Brown">Lesley A. Brown</name><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="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><name sortKey="Whishaw, Ian Q" sort="Whishaw, Ian Q" uniqKey="Whishaw I" first="Ian Q." last="Whishaw">Ian Q. Whishaw</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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