Posturographic measures in healthy young adults during quiet sitting in comparison with quiet standing.
Identifieur interne : 000D31 ( Main/Exploration ); précédent : 000D30; suivant : 000D32Posturographic measures in healthy young adults during quiet sitting in comparison with quiet standing.
Auteurs : Albert H. Vette [Canada] ; Kei Masani ; Vivian Sin ; Milos R. PopovicSource :
- Medical engineering & physics [ 1873-4030 ] ; 2010.
Descripteurs français
- KwdFr :
- Adulte (MeSH), Diffusion (MeSH), Facteurs temps (MeSH), Femelle (MeSH), Humains (MeSH), Jeune adulte (MeSH), Mouvement (physiologie), Mâle (MeSH), Performance psychomotrice (MeSH), Phénomènes biomécaniques (MeSH), Posture (MeSH), Processus stochastiques (MeSH), Proprioception (physiologie), Équilibre postural (MeSH).
- MESH :
English descriptors
- KwdEn :
- Adult (MeSH), Biomechanical Phenomena (MeSH), Diffusion (MeSH), Female (MeSH), Humans (MeSH), Male (MeSH), Movement (physiology), Postural Balance (MeSH), Posture (MeSH), Proprioception (physiology), Psychomotor Performance (MeSH), Stochastic Processes (MeSH), Time Factors (MeSH), Young Adult (MeSH).
- MESH :
Abstract
Measures of postural steadiness - known as posturography - are commonly used for balance assessment during quiet standing. Although quiet sitting balance may be studied via posturography as well, this has not been done to date. As such, the purpose of this study was to characterize the posturography during quiet sitting in comparison with quiet standing and to provide a benchmark for future studies investigating differences in balance regulation and execution. Twelve young and healthy people agreed to quietly sit and stand on a force platform with their eyes open and closed. For each condition, one trial of 2 min was executed and the anterior-posterior, medial-lateral, and resultant distance fluctuations of the body's center of pressure (COP) were calculated. Finally, time-domain, frequency-domain, and stabilogram diffusion function (SDF) measures were identified and compared for all COP time series. The results consistently indicate that, for quiet sitting, the body sway size and velocity were smaller and the power-weighted average frequency larger than for quiet standing. Moreover, the SDF analysis revealed that quiet sitting shows fewer drifts over short time intervals, but also fewer controlled adjustments in the longer term to bring the system back to equilibrium. The observed differences can be partially explained by biomechanical and dynamic differences of the body portions that are in motion during quiet sitting and standing. The SDF analysis suggests, however, that also the balance control strategies are not identical. These findings may be especially useful for the assessment of sitting balance and the development of novel balance rehabilitation techniques and assistive devices.
DOI: 10.1016/j.medengphy.2009.10.005
PubMed: 19884033
Affiliations:
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Vette</name><affiliation wicri:level="4"><nlm:affiliation>Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada. a.vette@utoronto.ca</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9</wicri:regionArea><orgName type="university">Université de Toronto</orgName><placeName><settlement type="city">Toronto</settlement><region type="state">Ontario</region></placeName></affiliation></author><author><name sortKey="Masani, Kei" sort="Masani, Kei" uniqKey="Masani K" first="Kei" last="Masani">Kei Masani</name></author><author><name sortKey="Sin, Vivian" sort="Sin, Vivian" uniqKey="Sin V" first="Vivian" last="Sin">Vivian Sin</name></author><author><name sortKey="Popovic, Milos R" sort="Popovic, Milos R" uniqKey="Popovic M" first="Milos R" last="Popovic">Milos R. 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Vette</name><affiliation wicri:level="4"><nlm:affiliation>Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada. a.vette@utoronto.ca</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9</wicri:regionArea><orgName type="university">Université de Toronto</orgName><placeName><settlement type="city">Toronto</settlement><region type="state">Ontario</region></placeName></affiliation></author><author><name sortKey="Masani, Kei" sort="Masani, Kei" uniqKey="Masani K" first="Kei" last="Masani">Kei Masani</name></author><author><name sortKey="Sin, Vivian" sort="Sin, Vivian" uniqKey="Sin V" first="Vivian" last="Sin">Vivian Sin</name></author><author><name sortKey="Popovic, Milos R" sort="Popovic, Milos R" uniqKey="Popovic M" first="Milos R" last="Popovic">Milos R. Popovic</name></author></analytic><series><title level="j">Medical engineering & physics</title><idno type="eISSN">1873-4030</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult (MeSH)</term><term>Biomechanical Phenomena (MeSH)</term><term>Diffusion (MeSH)</term><term>Female (MeSH)</term><term>Humans (MeSH)</term><term>Male (MeSH)</term><term>Movement (physiology)</term><term>Postural Balance (MeSH)</term><term>Posture (MeSH)</term><term>Proprioception (physiology)</term><term>Psychomotor Performance (MeSH)</term><term>Stochastic Processes (MeSH)</term><term>Time Factors (MeSH)</term><term>Young Adult (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte (MeSH)</term><term>Diffusion (MeSH)</term><term>Facteurs temps (MeSH)</term><term>Femelle (MeSH)</term><term>Humains (MeSH)</term><term>Jeune adulte (MeSH)</term><term>Mouvement (physiologie)</term><term>Mâle (MeSH)</term><term>Performance psychomotrice (MeSH)</term><term>Phénomènes biomécaniques (MeSH)</term><term>Posture (MeSH)</term><term>Processus stochastiques (MeSH)</term><term>Proprioception (physiologie)</term><term>Équilibre postural (MeSH)</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Mouvement</term><term>Proprioception</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Movement</term><term>Proprioception</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Biomechanical Phenomena</term><term>Diffusion</term><term>Female</term><term>Humans</term><term>Male</term><term>Postural Balance</term><term>Posture</term><term>Psychomotor Performance</term><term>Stochastic Processes</term><term>Time Factors</term><term>Young Adult</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Diffusion</term><term>Facteurs temps</term><term>Femelle</term><term>Humains</term><term>Jeune adulte</term><term>Mâle</term><term>Performance psychomotrice</term><term>Phénomènes biomécaniques</term><term>Posture</term><term>Processus stochastiques</term><term>Équilibre postural</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Measures of postural steadiness - known as posturography - are commonly used for balance assessment during quiet standing. Although quiet sitting balance may be studied via posturography as well, this has not been done to date. As such, the purpose of this study was to characterize the posturography during quiet sitting in comparison with quiet standing and to provide a benchmark for future studies investigating differences in balance regulation and execution. Twelve young and healthy people agreed to quietly sit and stand on a force platform with their eyes open and closed. For each condition, one trial of 2 min was executed and the anterior-posterior, medial-lateral, and resultant distance fluctuations of the body's center of pressure (COP) were calculated. Finally, time-domain, frequency-domain, and stabilogram diffusion function (SDF) measures were identified and compared for all COP time series. The results consistently indicate that, for quiet sitting, the body sway size and velocity were smaller and the power-weighted average frequency larger than for quiet standing. Moreover, the SDF analysis revealed that quiet sitting shows fewer drifts over short time intervals, but also fewer controlled adjustments in the longer term to bring the system back to equilibrium. The observed differences can be partially explained by biomechanical and dynamic differences of the body portions that are in motion during quiet sitting and standing. The SDF analysis suggests, however, that also the balance control strategies are not identical. These findings may be especially useful for the assessment of sitting balance and the development of novel balance rehabilitation techniques and assistive devices.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19884033</PMID><DateCompleted><Year>2010</Year><Month>04</Month><Day>27</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-4030</ISSN><JournalIssue CitedMedium="Internet"><Volume>32</Volume><Issue>1</Issue><PubDate><Year>2010</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Medical engineering & physics</Title><ISOAbbreviation>Med Eng Phys</ISOAbbreviation></Journal><ArticleTitle>Posturographic measures in healthy young adults during quiet sitting in comparison with quiet standing.</ArticleTitle><Pagination><MedlinePgn>32-8</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.medengphy.2009.10.005</ELocationID><Abstract><AbstractText>Measures of postural steadiness - known as posturography - are commonly used for balance assessment during quiet standing. Although quiet sitting balance may be studied via posturography as well, this has not been done to date. As such, the purpose of this study was to characterize the posturography during quiet sitting in comparison with quiet standing and to provide a benchmark for future studies investigating differences in balance regulation and execution. Twelve young and healthy people agreed to quietly sit and stand on a force platform with their eyes open and closed. For each condition, one trial of 2 min was executed and the anterior-posterior, medial-lateral, and resultant distance fluctuations of the body's center of pressure (COP) were calculated. Finally, time-domain, frequency-domain, and stabilogram diffusion function (SDF) measures were identified and compared for all COP time series. The results consistently indicate that, for quiet sitting, the body sway size and velocity were smaller and the power-weighted average frequency larger than for quiet standing. Moreover, the SDF analysis revealed that quiet sitting shows fewer drifts over short time intervals, but also fewer controlled adjustments in the longer term to bring the system back to equilibrium. The observed differences can be partially explained by biomechanical and dynamic differences of the body portions that are in motion during quiet sitting and standing. The SDF analysis suggests, however, that also the balance control strategies are not identical. These findings may be especially useful for the assessment of sitting balance and the development of novel balance rehabilitation techniques and assistive devices.</AbstractText><CopyrightInformation>(c) 2009 IPEM. Published by Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Vette</LastName><ForeName>Albert H</ForeName><Initials>AH</Initials><AffiliationInfo><Affiliation>Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada. a.vette@utoronto.ca</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Masani</LastName><ForeName>Kei</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Sin</LastName><ForeName>Vivian</ForeName><Initials>V</Initials></Author><Author ValidYN="Y"><LastName>Popovic</LastName><ForeName>Milos R</ForeName><Initials>MR</Initials></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>129179</GrantID><Agency>Canadian Institutes of Health Research</Agency><Country>Canada</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2009</Year><Month>11</Month><Day>01</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Med Eng Phys</MedlineTA><NlmUniqueID>9422753</NlmUniqueID><ISSNLinking>1350-4533</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001696" MajorTopicYN="N">Biomechanical Phenomena</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004058" MajorTopicYN="N">Diffusion</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005260" MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008297" MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009068" MajorTopicYN="N">Movement</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004856" MajorTopicYN="Y">Postural Balance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011187" MajorTopicYN="Y">Posture</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011434" MajorTopicYN="N">Proprioception</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011597" MajorTopicYN="N">Psychomotor Performance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013269" MajorTopicYN="N">Stochastic Processes</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055815" MajorTopicYN="N">Young Adult</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2009</Year><Month>04</Month><Day>28</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2009</Year><Month>09</Month><Day>28</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2009</Year><Month>10</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>11</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>11</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>4</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19884033</ArticleId><ArticleId IdType="pii">S1350-4533(09)00211-2</ArticleId><ArticleId IdType="doi">10.1016/j.medengphy.2009.10.005</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country><region><li>Ontario</li></region><settlement><li>Toronto</li></settlement><orgName><li>Université de Toronto</li></orgName></list><tree><noCountry><name sortKey="Masani, Kei" sort="Masani, Kei" uniqKey="Masani K" first="Kei" last="Masani">Kei Masani</name><name sortKey="Popovic, Milos R" sort="Popovic, Milos R" uniqKey="Popovic M" first="Milos R" last="Popovic">Milos R. Popovic</name><name sortKey="Sin, Vivian" sort="Sin, Vivian" uniqKey="Sin V" first="Vivian" last="Sin">Vivian Sin</name></noCountry><country name="Canada"><region name="Ontario"><name sortKey="Vette, Albert H" sort="Vette, Albert H" uniqKey="Vette A" first="Albert H" last="Vette">Albert H. Vette</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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