Turning in Parkinson's disease patients and controls: The effect of auditory cues
Identifieur interne : 000B69 ( Main/Corpus ); précédent : 000B68; suivant : 000B70Turning in Parkinson's disease patients and controls: The effect of auditory cues
Auteurs : Anne-Marie Willems ; Alice Nieuwboer ; Fabienne Chavret ; Kaat Desloovere ; René Dom ; Lynn Rochester ; Gert Kwakkel ; Erwin Van Wegen ; Diana JonesSource :
- Movement Disorders [ 0885-3185 ] ; 2007-10-15.
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- KwdEn :
Abstract
Turning is an impaired activity in persons with Parkinson's disease (PwPD). The current study examines the turning characteristics in PwPD (9 freezers and 10 nonfreezers) and 9 controls, and explores the effect of rhythmic auditory cues while turning. Turning parameters were collected from a 180° left U‐turn during a noncued and a cued condition, using a 3D measuring system. Auditory cues were supplied with a metronome at a rhythm equaling the subject's comfortable step frequency during straight line walking. Results showed that in contrast to controls, PwPD used a wider turning‐arc and took smaller, narrower steps. In addition, they demonstrated a higher Coefficient of Variation (CV) of step duration (6.92%) compared to controls (4.88%, P < 0.05). The “wide‐arc” turning strategy of PwPD was more prominent in freezers than in nonfreezers. Auditory cues reduced the CV of step duration in PwPD (both freezers and nonfreezers) during turning (from 6.92 to 6.00%, P < 0.05). In summary: Cueing reduced the gait‐timing variability during turning, but PwPD maintained a wider arc to turn compared with controls. © 2007 Movement Disorder Society
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DOI: 10.1002/mds.21445
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of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</mods:affiliation></affiliation></author><author><name sortKey="Dom, Rene" sort="Dom, Rene" uniqKey="Dom R" first="René" last="Dom">René Dom</name><affiliation><mods:affiliation>Department of Neurosciences of the Faculty of Medicine, Katholieke Universiteit Leuven, Belgium</mods:affiliation></affiliation></author><author><name sortKey="Rochester, Lynn" sort="Rochester, Lynn" uniqKey="Rochester L" first="Lynn" last="Rochester">Lynn Rochester</name><affiliation><mods:affiliation>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</mods:affiliation></affiliation></author><author><name sortKey="Kwakkel, Gert" sort="Kwakkel, Gert" uniqKey="Kwakkel G" first="Gert" last="Kwakkel">Gert Kwakkel</name><affiliation><mods:affiliation>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</mods:affiliation></affiliation></author><author><name sortKey="Van Wegen, Erwin" sort="Van Wegen, Erwin" uniqKey="Van Wegen E" first="Erwin" last="Van Wegen">Erwin Van Wegen</name><affiliation><mods:affiliation>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</mods:affiliation></affiliation></author><author><name sortKey="Jones, Diana" sort="Jones, Diana" uniqKey="Jones D" first="Diana" last="Jones">Diana Jones</name><affiliation><mods:affiliation>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Movement Disorders</title><title level="j" type="abbrev">Mov. 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The current study examines the turning characteristics in PwPD (9 freezers and 10 nonfreezers) and 9 controls, and explores the effect of rhythmic auditory cues while turning. Turning parameters were collected from a 180° left U‐turn during a noncued and a cued condition, using a 3D measuring system. Auditory cues were supplied with a metronome at a rhythm equaling the subject's comfortable step frequency during straight line walking. Results showed that in contrast to controls, PwPD used a wider turning‐arc and took smaller, narrower steps. In addition, they demonstrated a higher Coefficient of Variation (CV) of step duration (6.92%) compared to controls (4.88%, P < 0.05). The “wide‐arc” turning strategy of PwPD was more prominent in freezers than in nonfreezers. Auditory cues reduced the CV of step duration in PwPD (both freezers and nonfreezers) during turning (from 6.92 to 6.00%, P < 0.05). In summary: Cueing reduced the gait‐timing variability during turning, but PwPD maintained a wider arc to turn compared with controls. © 2007 Movement Disorder Society</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>Anne‐Marie Willems PhD</name><affiliations><json:string>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</json:string></affiliations></json:item><json:item><name>Alice Nieuwboer PhD</name><affiliations><json:string>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</json:string></affiliations></json:item><json:item><name>Fabienne Chavret MSc</name><affiliations><json:string>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</json:string></affiliations></json:item><json:item><name>Kaat Desloovere PhD</name><affiliations><json:string>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</json:string></affiliations></json:item><json:item><name>René Dom MD</name><affiliations><json:string>Department of Neurosciences of the Faculty of Medicine, Katholieke Universiteit Leuven, Belgium</json:string></affiliations></json:item><json:item><name>Lynn Rochester PhD</name><affiliations><json:string>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</json:string></affiliations></json:item><json:item><name>Gert Kwakkel PhD</name><affiliations><json:string>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</json:string></affiliations></json:item><json:item><name>Erwin van Wegen PhD</name><affiliations><json:string>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</json:string></affiliations></json:item><json:item><name>Diana Jones PhD</name><affiliations><json:string>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Parkinson's disease</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>gait</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>turning</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>freezing</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>cueing</value></json:item></subject><articleId><json:string>MDS21445</json:string></articleId><language><json:string>eng</json:string></language><abstract>Turning is an impaired activity in persons with Parkinson's disease (PwPD). The current study examines the turning characteristics in PwPD (9 freezers and 10 nonfreezers) and 9 controls, and explores the effect of rhythmic auditory cues while turning. Turning parameters were collected from a 180° left U‐turn during a noncued and a cued condition, using a 3D measuring system. Auditory cues were supplied with a metronome at a rhythm equaling the subject's comfortable step frequency during straight line walking. Results showed that in contrast to controls, PwPD used a wider turning‐arc and took smaller, narrower steps. In addition, they demonstrated a higher Coefficient of Variation (CV) of step duration (6.92%) compared to controls (4.88%, P > 0.05). The “wide‐arc” turning strategy of PwPD was more prominent in freezers than in nonfreezers. Auditory cues reduced the CV of step duration in PwPD (both freezers and nonfreezers) during turning (from 6.92 to 6.00%, P > 0.05). In summary: Cueing reduced the gait‐timing variability during turning, but PwPD maintained a wider arc to turn compared with controls. © 2007 Movement Disorder Society</abstract><qualityIndicators><score>6.579</score><pdfVersion>1.3</pdfVersion><pdfPageSize>594 x 792 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>5</keywordCount><abstractCharCount>1151</abstractCharCount><pdfWordCount>4431</pdfWordCount><pdfCharCount>29075</pdfCharCount><pdfPageCount>8</pdfPageCount><abstractWordCount>179</abstractWordCount></qualityIndicators><title>Turning in Parkinson's disease patients and controls: The effect of auditory cues</title><genre><json:string>article</json:string></genre><host><volume>22</volume><publisherId><json:string>MDS</json:string></publisherId><pages><total>8</total><last>1878</last><first>1871</first></pages><issn><json:string>0885-3185</json:string></issn><issue>13</issue><subject><json:item><value>Research Article</value></json:item></subject><genre><json:string>Journal</json:string></genre><language><json:string>unknown</json:string></language><eissn><json:string>1531-8257</json:string></eissn><title>Movement Disorders</title><doi><json:string>10.1002/(ISSN)1531-8257</json:string></doi></host><publicationDate>2007</publicationDate><copyrightDate>2007</copyrightDate><doi><json:string>10.1002/mds.21445</json:string></doi><id>A0D383A2D044930F547DA73E3D433DD971651A5C</id><fulltext><json:item><original>true</original><mimetype>application/pdf</mimetype><extension>pdf</extension><uri>https://api.istex.fr/document/A0D383A2D044930F547DA73E3D433DD971651A5C/fulltext/pdf</uri></json:item><json:item><original>false</original><mimetype>application/zip</mimetype><extension>zip</extension><uri>https://api.istex.fr/document/A0D383A2D044930F547DA73E3D433DD971651A5C/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/A0D383A2D044930F547DA73E3D433DD971651A5C/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Turning in Parkinson's disease patients and controls: The effect of auditory cues</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><availability><p>WILEY</p></availability><date>2007</date></publicationStmt><notesStmt><note>European Commission</note><note>Framework V funding - No. QLRT‐2001–00120;</note><note>RESCUE‐project</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Turning in Parkinson's disease patients and controls: The effect of auditory cues</title><author><persName><forename type="first">Anne‐Marie</forename><surname>Willems</surname></persName><roleName type="degree">PhD</roleName><note type="correspondence"><p>Correspondence: K.U. Leuven, Department of Rehabilitation Sciences, Tervuursevest 101 3001 Heverlee, Belgium</p></note><affiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</affiliation></author><author><persName><forename type="first">Alice</forename><surname>Nieuwboer</surname></persName><roleName type="degree">PhD</roleName><affiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</affiliation></author><author><persName><forename type="first">Fabienne</forename><surname>Chavret</surname></persName><roleName type="degree">MSc</roleName><affiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</affiliation></author><author><persName><forename type="first">Kaat</forename><surname>Desloovere</surname></persName><roleName type="degree">PhD</roleName><affiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</affiliation></author><author><persName><forename type="first">René</forename><surname>Dom</surname></persName><roleName type="degree">MD</roleName><affiliation>Department of Neurosciences of the Faculty of Medicine, Katholieke Universiteit Leuven, Belgium</affiliation></author><author><persName><forename type="first">Lynn</forename><surname>Rochester</surname></persName><roleName type="degree">PhD</roleName><affiliation>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</affiliation></author><author><persName><forename type="first">Gert</forename><surname>Kwakkel</surname></persName><roleName type="degree">PhD</roleName><affiliation>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</affiliation></author><author><persName><forename type="first">Erwin</forename><surname>van Wegen</surname></persName><roleName type="degree">PhD</roleName><affiliation>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</affiliation></author><author><persName><forename type="first">Diana</forename><surname>Jones</surname></persName><roleName type="degree">PhD</roleName><affiliation>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</affiliation></author></analytic><monogr><title level="j">Movement Disorders</title><title level="j" type="abbrev">Mov. 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The current study examines the turning characteristics in PwPD (9 freezers and 10 nonfreezers) and 9 controls, and explores the effect of rhythmic auditory cues while turning. Turning parameters were collected from a 180° left U‐turn during a noncued and a cued condition, using a 3D measuring system. Auditory cues were supplied with a metronome at a rhythm equaling the subject's comfortable step frequency during straight line walking. Results showed that in contrast to controls, PwPD used a wider turning‐arc and took smaller, narrower steps. In addition, they demonstrated a higher Coefficient of Variation (CV) of step duration (6.92%) compared to controls (4.88%, P < 0.05). The “wide‐arc” turning strategy of PwPD was more prominent in freezers than in nonfreezers. Auditory cues reduced the CV of step duration in PwPD (both freezers and nonfreezers) during turning (from 6.92 to 6.00%, P < 0.05). In summary: Cueing reduced the gait‐timing variability during turning, but PwPD maintained a wider arc to turn compared with controls. © 2007 Movement Disorder Society</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>Parkinson's disease</term></item><item><term>gait</term></item><item><term>turning</term></item><item><term>freezing</term></item><item><term>cueing</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>article category</head><item><term>Research Article</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2006-11-01">Received</change><change when="2007-01-27">Registration</change><change when="2007-10-15">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/A0D383A2D044930F547DA73E3D433DD971651A5C/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Wiley Subscription Services, Inc., A Wiley Company</publisherName><publisherLoc>Hoboken</publisherLoc></publisherInfo><doi registered="yes">10.1002/(ISSN)1531-8257</doi><issn type="print">0885-3185</issn><issn type="electronic">1531-8257</issn><idGroup><id type="product" value="MDS"></id></idGroup><titleGroup><title type="main" xml:lang="en" sort="MOVEMENT DISORDERS">Movement Disorders</title><title type="short">Mov. 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Leuven, Department of Rehabilitation Sciences, Tervuursevest 101 3001 Heverlee, Belgium</correspondenceTo><objectNameGroup><objectName elementName="appendix">APPENDIX</objectName></objectNameGroup><linkGroup><link type="toTypesetVersion" href="file:MDS.MDS21445.pdf"></link></linkGroup></publicationMeta><contentMeta><countGroup><count type="figureTotal" number="3"></count><count type="tableTotal" number="3"></count><count type="referenceTotal" number="37"></count><count type="wordTotal" number="5333"></count></countGroup><titleGroup><title type="main" xml:lang="en">Turning in Parkinson's disease patients and controls: The effect of auditory cues</title><title type="short" xml:lang="en">Rhythmic Auditory cues for turning in PwPD</title></titleGroup><creators><creator xml:id="au1" creatorRole="author" affiliationRef="#af1" corresponding="yes"><personName><givenNames>Anne‐Marie</givenNames><familyName>Willems</familyName><degrees>PhD</degrees></personName><contactDetails><email>annemarie.willems@gmail.com</email></contactDetails></creator><creator xml:id="au2" creatorRole="author" affiliationRef="#af1"><personName><givenNames>Alice</givenNames><familyName>Nieuwboer</familyName><degrees>PhD</degrees></personName></creator><creator xml:id="au3" creatorRole="author" affiliationRef="#af1"><personName><givenNames>Fabienne</givenNames><familyName>Chavret</familyName><degrees>MSc</degrees></personName></creator><creator xml:id="au4" creatorRole="author" affiliationRef="#af1"><personName><givenNames>Kaat</givenNames><familyName>Desloovere</familyName><degrees>PhD</degrees></personName></creator><creator xml:id="au5" creatorRole="author" affiliationRef="#af2"><personName><givenNames>René</givenNames><familyName>Dom</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au6" creatorRole="author" affiliationRef="#af3"><personName><givenNames>Lynn</givenNames><familyName>Rochester</familyName><degrees>PhD</degrees></personName></creator><creator xml:id="au7" creatorRole="author" affiliationRef="#af4"><personName><givenNames>Gert</givenNames><familyName>Kwakkel</familyName><degrees>PhD</degrees></personName></creator><creator xml:id="au8" creatorRole="author" affiliationRef="#af4"><personName><givenNames>Erwin</givenNames><familyName>van Wegen</familyName><degrees>PhD</degrees></personName></creator><creator xml:id="au9" creatorRole="author" affiliationRef="#af3"><personName><givenNames>Diana</givenNames><familyName>Jones</familyName><degrees>PhD</degrees></personName></creator></creators><affiliationGroup><affiliation xml:id="af1" countryCode="BE" type="organization"><unparsedAffiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</unparsedAffiliation></affiliation><affiliation xml:id="af2" countryCode="BE" type="organization"><unparsedAffiliation>Department of Neurosciences of the Faculty of Medicine, Katholieke Universiteit Leuven, Belgium</unparsedAffiliation></affiliation><affiliation xml:id="af3" countryCode="GB" type="organization"><unparsedAffiliation>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</unparsedAffiliation></affiliation><affiliation xml:id="af4" countryCode="NL" type="organization"><unparsedAffiliation>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en" type="author"><keyword xml:id="kwd1">Parkinson's disease</keyword><keyword xml:id="kwd2">gait</keyword><keyword xml:id="kwd3">turning</keyword><keyword xml:id="kwd4">freezing</keyword><keyword xml:id="kwd5">cueing</keyword></keywordGroup><fundingInfo><fundingAgency>European Commission</fundingAgency></fundingInfo><fundingInfo><fundingAgency>Framework V funding</fundingAgency><fundingNumber>QLRT‐2001–00120</fundingNumber></fundingInfo><fundingInfo><fundingAgency>RESCUE‐project</fundingAgency></fundingInfo><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>Turning is an impaired activity in persons with Parkinson's disease (PwPD). The current study examines the turning characteristics in PwPD (9 freezers and 10 nonfreezers) and 9 controls, and explores the effect of rhythmic auditory cues while turning. Turning parameters were collected from a 180° left U‐turn during a noncued and a cued condition, using a 3D measuring system. Auditory cues were supplied with a metronome at a rhythm equaling the subject's comfortable step frequency during straight line walking. Results showed that in contrast to controls, PwPD used a wider turning‐arc and took smaller, narrower steps. In addition, they demonstrated a higher Coefficient of Variation (CV) of step duration (6.92%) compared to controls (4.88%, <i>P</i> < 0.05). The “wide‐arc” turning strategy of PwPD was more prominent in freezers than in nonfreezers. Auditory cues reduced the CV of step duration in PwPD (both freezers and nonfreezers) during turning (from 6.92 to 6.00%, <i>P</i> < 0.05). In summary: Cueing reduced the gait‐timing variability during turning, but PwPD maintained a wider arc to turn compared with controls. © 2007 Movement Disorder Society</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Turning in Parkinson's disease patients and controls: The effect of auditory cues</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Rhythmic Auditory cues for turning in PwPD</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Turning in Parkinson's disease patients and controls: The effect of auditory cues</title></titleInfo><name type="personal"><namePart type="given">Anne‐Marie</namePart><namePart type="family">Willems</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</affiliation><description>Correspondence: K.U. Leuven, Department of Rehabilitation Sciences, Tervuursevest 101 3001 Heverlee, Belgium</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Alice</namePart><namePart type="family">Nieuwboer</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Fabienne</namePart><namePart type="family">Chavret</namePart><namePart type="termsOfAddress">MSc</namePart><affiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Kaat</namePart><namePart type="family">Desloovere</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>Department of Rehabilitation Sciences of the Faculty of Rehabilitation Sciences and Physiotherapy, Katholieke Universiteit Leuven, Belgium</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">René</namePart><namePart type="family">Dom</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Department of Neurosciences of the Faculty of Medicine, Katholieke Universiteit Leuven, Belgium</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Lynn</namePart><namePart type="family">Rochester</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Gert</namePart><namePart type="family">Kwakkel</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Erwin</namePart><namePart type="family">van Wegen</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>Department of Rehabilitation, Medicine, Vrije Universiteit Medisch Centrum, Amsterdam, The Netherlands</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Diana</namePart><namePart type="family">Jones</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>School of Health, Community and Education Studies, Northumbria University, Newcastle upon Tyne, United Kingdom</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><place><placeTerm type="text">Hoboken</placeTerm></place><dateIssued encoding="w3cdtf">2007-10-15</dateIssued><dateCaptured encoding="w3cdtf">2006-11-01</dateCaptured><dateValid encoding="w3cdtf">2007-01-27</dateValid><copyrightDate encoding="w3cdtf">2007</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">3</extent><extent unit="tables">3</extent><extent unit="references">37</extent><extent unit="words">5333</extent></physicalDescription><abstract lang="en">Turning is an impaired activity in persons with Parkinson's disease (PwPD). The current study examines the turning characteristics in PwPD (9 freezers and 10 nonfreezers) and 9 controls, and explores the effect of rhythmic auditory cues while turning. Turning parameters were collected from a 180° left U‐turn during a noncued and a cued condition, using a 3D measuring system. Auditory cues were supplied with a metronome at a rhythm equaling the subject's comfortable step frequency during straight line walking. Results showed that in contrast to controls, PwPD used a wider turning‐arc and took smaller, narrower steps. In addition, they demonstrated a higher Coefficient of Variation (CV) of step duration (6.92%) compared to controls (4.88%, P < 0.05). The “wide‐arc” turning strategy of PwPD was more prominent in freezers than in nonfreezers. Auditory cues reduced the CV of step duration in PwPD (both freezers and nonfreezers) during turning (from 6.92 to 6.00%, P < 0.05). In summary: Cueing reduced the gait‐timing variability during turning, but PwPD maintained a wider arc to turn compared with controls. © 2007 Movement Disorder Society</abstract><note type="funding">European Commission</note><note type="funding">Framework V funding - No. QLRT‐2001–00120; </note><note type="funding">RESCUE‐project</note><subject lang="en"><genre>Keywords</genre><topic>Parkinson's disease</topic><topic>gait</topic><topic>turning</topic><topic>freezing</topic><topic>cueing</topic></subject><relatedItem type="host"><titleInfo><title>Movement Disorders</title></titleInfo><titleInfo type="abbreviated"><title>Mov. Disord.</title></titleInfo><genre type="Journal">journal</genre><subject><genre>article category</genre><topic>Research Article</topic></subject><identifier type="ISSN">0885-3185</identifier><identifier type="eISSN">1531-8257</identifier><identifier type="DOI">10.1002/(ISSN)1531-8257</identifier><identifier type="PublisherID">MDS</identifier><part><date>2007</date><detail type="volume"><caption>vol.</caption><number>22</number></detail><detail type="issue"><caption>no.</caption><number>13</number></detail><extent unit="pages"><start>1871</start><end>1878</end><total>8</total></extent></part></relatedItem><identifier type="istex">A0D383A2D044930F547DA73E3D433DD971651A5C</identifier><identifier type="DOI">10.1002/mds.21445</identifier><identifier type="ArticleID">MDS21445</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2007 Movement Disorder Society</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Wiley Subscription Services, Inc., A Wiley Company</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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