Effect of noise stimulation below and above sensory threshold on postural sway during a mildly challenging balance task.
Identifieur interne : 000420 ( Main/Exploration ); précédent : 000419; suivant : 000421Effect of noise stimulation below and above sensory threshold on postural sway during a mildly challenging balance task.
Auteurs : Giacomo Severini [Irlande (pays)] ; Eamonn Delahunt [Irlande (pays)]Source :
- Gait & posture [ 1879-2219 ] ; 2018.
Descripteurs français
- KwdFr :
- MESH :
- physiologie : Équilibre postural.
- physiopathologie : Muscles squelettiques.
- Adulte, Bruit, Femelle, Humains, Mâle, Processus stochastiques, Stimulation électrique, Vibration.
English descriptors
- KwdEn :
- MESH :
- physiology : Postural Balance.
- physiopathology : Muscle, Skeletal.
- Adult, Electric Stimulation, Female, Humans, Male, Noise, Stochastic Processes, Vibration.
Abstract
BACKGROUND
Mechanical and electrical sub-sensory noise stimulation applied to the sensory receptors has been shown to improve performance during postural balance tasks. This improvement has been linked with the Stochastic Resonance (SR) phenomenon. It is not clear if noise levels above sensory threshold can also lead to a reduction in postural sway.
RESEARCH QUESTION
The aim of this study was to investigate the different effects of sub- and super-sensory electrical noise stimulation applied to the Tibialis Anterior muscle during several repetitions of a mildly challenging single-leg postural balance task.
METHODS
Fifteen healthy individuals participated in this study. Participants performed 25 repetitions of a balance tasks where they leaned forward and maintained a pre-determined position for 20 s. Each participant experienced 5 different stimulation levels (no-stimulation, 70%, 90%, 110% and 130% of their sensory threshold ST) for 5 times in a randomized order. Optimal stimulation (OS) was defined as the stimulation intensity minimizing the standard deviation of postural sway in the anteroposterior direction.
RESULTS
∼57% of the participants presented levels of OS below ST. We did not observe a clear SR-effect, characterized by a U-shaped relationship between the performance metric and the stimulation intensity. OS led to a selective improvement in all the anteroposterior posturographic parameters analyzed. Stimulation below ST led to an improvement in most of the balance features, while stimulation above ST led to an increase in postural sway.
SIGNIFICANCE
Our results suggest that OS can be found both below and above ST although stimulation below ST appears to be more effective in reducing postural sway.
DOI: 10.1016/j.gaitpost.2018.04.031
PubMed: 29704801
Affiliations:
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Electronic address: giacomo.severini@ucd.ie.</nlm:affiliation><country xml:lang="fr">Irlande (pays)</country><wicri:regionArea>School of Electrical and Electronic Engineering, University College Dublin, Engineering Building, Belfield Campus, Dublin 4, Dublin</wicri:regionArea><orgName type="university">University College Dublin</orgName><placeName><settlement type="city">Dublin</settlement><region type="région" nuts="2">Leinster</region></placeName></affiliation></author><author><name sortKey="Delahunt, Eamonn" sort="Delahunt, Eamonn" uniqKey="Delahunt E" first="Eamonn" last="Delahunt">Eamonn Delahunt</name><affiliation wicri:level="4"><nlm:affiliation>School of Public Health, Physiotherapy and Sport Science, University College Dublin, Belfield Campus, Dublin 4, Dublin, Ireland.</nlm:affiliation><country xml:lang="fr">Irlande (pays)</country><wicri:regionArea>School of Public Health, Physiotherapy and Sport Science, University College Dublin, Belfield Campus, Dublin 4, Dublin</wicri:regionArea><orgName type="university">University College Dublin</orgName><placeName><settlement type="city">Dublin</settlement><region type="région" nuts="2">Leinster</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2018">2018</date><idno type="RBID">pubmed:29704801</idno><idno type="pmid">29704801</idno><idno type="doi">10.1016/j.gaitpost.2018.04.031</idno><idno type="wicri:Area/Main/Corpus">000394</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000394</idno><idno type="wicri:Area/Main/Curation">000394</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000394</idno><idno type="wicri:Area/Main/Exploration">000394</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Effect of noise stimulation below and above sensory threshold on postural sway during a mildly challenging balance task.</title><author><name sortKey="Severini, Giacomo" sort="Severini, Giacomo" uniqKey="Severini G" first="Giacomo" last="Severini">Giacomo Severini</name><affiliation wicri:level="4"><nlm:affiliation>School of Electrical and Electronic Engineering, University College Dublin, Engineering Building, Belfield Campus, Dublin 4, Dublin, Ireland. Electronic address: giacomo.severini@ucd.ie.</nlm:affiliation><country xml:lang="fr">Irlande (pays)</country><wicri:regionArea>School of Electrical and Electronic Engineering, University College Dublin, Engineering Building, Belfield Campus, Dublin 4, Dublin</wicri:regionArea><orgName type="university">University College Dublin</orgName><placeName><settlement type="city">Dublin</settlement><region type="région" nuts="2">Leinster</region></placeName></affiliation></author><author><name sortKey="Delahunt, Eamonn" sort="Delahunt, Eamonn" uniqKey="Delahunt E" first="Eamonn" last="Delahunt">Eamonn Delahunt</name><affiliation wicri:level="4"><nlm:affiliation>School of Public Health, Physiotherapy and Sport Science, University College Dublin, Belfield Campus, Dublin 4, Dublin, Ireland.</nlm:affiliation><country xml:lang="fr">Irlande (pays)</country><wicri:regionArea>School of Public Health, Physiotherapy and Sport Science, University College Dublin, Belfield Campus, Dublin 4, Dublin</wicri:regionArea><orgName type="university">University College Dublin</orgName><placeName><settlement type="city">Dublin</settlement><region type="région" nuts="2">Leinster</region></placeName></affiliation></author></analytic><series><title level="j">Gait & posture</title><idno type="eISSN">1879-2219</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult (MeSH)</term><term>Electric Stimulation (MeSH)</term><term>Female (MeSH)</term><term>Humans (MeSH)</term><term>Male (MeSH)</term><term>Muscle, Skeletal (physiopathology)</term><term>Noise (MeSH)</term><term>Postural Balance (physiology)</term><term>Stochastic Processes (MeSH)</term><term>Vibration (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte (MeSH)</term><term>Bruit (MeSH)</term><term>Femelle (MeSH)</term><term>Humains (MeSH)</term><term>Muscles squelettiques (physiopathologie)</term><term>Mâle (MeSH)</term><term>Processus stochastiques (MeSH)</term><term>Stimulation électrique (MeSH)</term><term>Vibration (MeSH)</term><term>Équilibre postural (physiologie)</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Équilibre postural</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Postural Balance</term></keywords><keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr"><term>Muscles squelettiques</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Electric Stimulation</term><term>Female</term><term>Humans</term><term>Male</term><term>Noise</term><term>Stochastic Processes</term><term>Vibration</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Bruit</term><term>Femelle</term><term>Humains</term><term>Mâle</term><term>Processus stochastiques</term><term>Stimulation électrique</term><term>Vibration</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>BACKGROUND</b></p><p>Mechanical and electrical sub-sensory noise stimulation applied to the sensory receptors has been shown to improve performance during postural balance tasks. This improvement has been linked with the Stochastic Resonance (SR) phenomenon. It is not clear if noise levels above sensory threshold can also lead to a reduction in postural sway.</p></div><div type="abstract" xml:lang="en"><p><b>RESEARCH QUESTION</b></p><p>The aim of this study was to investigate the different effects of sub- and super-sensory electrical noise stimulation applied to the Tibialis Anterior muscle during several repetitions of a mildly challenging single-leg postural balance task.</p></div><div type="abstract" xml:lang="en"><p><b>METHODS</b></p><p>Fifteen healthy individuals participated in this study. Participants performed 25 repetitions of a balance tasks where they leaned forward and maintained a pre-determined position for 20 s. Each participant experienced 5 different stimulation levels (no-stimulation, 70%, 90%, 110% and 130% of their sensory threshold ST) for 5 times in a randomized order. Optimal stimulation (OS) was defined as the stimulation intensity minimizing the standard deviation of postural sway in the anteroposterior direction.</p></div><div type="abstract" xml:lang="en"><p><b>RESULTS</b></p><p>∼57% of the participants presented levels of OS below ST. We did not observe a clear SR-effect, characterized by a U-shaped relationship between the performance metric and the stimulation intensity. OS led to a selective improvement in all the anteroposterior posturographic parameters analyzed. Stimulation below ST led to an improvement in most of the balance features, while stimulation above ST led to an increase in postural sway.</p></div><div type="abstract" xml:lang="en"><p><b>SIGNIFICANCE</b></p><p>Our results suggest that OS can be found both below and above ST although stimulation below ST appears to be more effective in reducing postural sway.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">29704801</PMID><DateCompleted><Year>2018</Year><Month>10</Month><Day>16</Day></DateCompleted><DateRevised><Year>2018</Year><Month>10</Month><Day>16</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-2219</ISSN><JournalIssue CitedMedium="Internet"><Volume>63</Volume><PubDate><Year>2018</Year><Month>06</Month></PubDate></JournalIssue><Title>Gait & posture</Title><ISOAbbreviation>Gait Posture</ISOAbbreviation></Journal><ArticleTitle>Effect of noise stimulation below and above sensory threshold on postural sway during a mildly challenging balance task.</ArticleTitle><Pagination><MedlinePgn>27-32</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0966-6362(18)30427-2</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.gaitpost.2018.04.031</ELocationID><Abstract><AbstractText Label="BACKGROUND">Mechanical and electrical sub-sensory noise stimulation applied to the sensory receptors has been shown to improve performance during postural balance tasks. This improvement has been linked with the Stochastic Resonance (SR) phenomenon. It is not clear if noise levels above sensory threshold can also lead to a reduction in postural sway.</AbstractText><AbstractText Label="RESEARCH QUESTION">The aim of this study was to investigate the different effects of sub- and super-sensory electrical noise stimulation applied to the Tibialis Anterior muscle during several repetitions of a mildly challenging single-leg postural balance task.</AbstractText><AbstractText Label="METHODS">Fifteen healthy individuals participated in this study. Participants performed 25 repetitions of a balance tasks where they leaned forward and maintained a pre-determined position for 20 s. Each participant experienced 5 different stimulation levels (no-stimulation, 70%, 90%, 110% and 130% of their sensory threshold ST) for 5 times in a randomized order. Optimal stimulation (OS) was defined as the stimulation intensity minimizing the standard deviation of postural sway in the anteroposterior direction.</AbstractText><AbstractText Label="RESULTS">∼57% of the participants presented levels of OS below ST. We did not observe a clear SR-effect, characterized by a U-shaped relationship between the performance metric and the stimulation intensity. OS led to a selective improvement in all the anteroposterior posturographic parameters analyzed. Stimulation below ST led to an improvement in most of the balance features, while stimulation above ST led to an increase in postural sway.</AbstractText><AbstractText Label="SIGNIFICANCE">Our results suggest that OS can be found both below and above ST although stimulation below ST appears to be more effective in reducing postural sway.</AbstractText><CopyrightInformation>Copyright © 2018 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Severini</LastName><ForeName>Giacomo</ForeName><Initials>G</Initials><AffiliationInfo><Affiliation>School of Electrical and Electronic Engineering, University College Dublin, Engineering Building, Belfield Campus, Dublin 4, Dublin, Ireland. Electronic address: giacomo.severini@ucd.ie.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Delahunt</LastName><ForeName>Eamonn</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>School of Public Health, Physiotherapy and Sport Science, University College Dublin, Belfield Campus, Dublin 4, Dublin, Ireland.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2018</Year><Month>04</Month><Day>22</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Gait Posture</MedlineTA><NlmUniqueID>9416830</NlmUniqueID><ISSNLinking>0966-6362</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004558" MajorTopicYN="Y">Electric Stimulation</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="D018482" MajorTopicYN="N">Muscle, Skeletal</DescriptorName><QualifierName UI="Q000503" MajorTopicYN="N">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009622" MajorTopicYN="Y">Noise</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004856" MajorTopicYN="N">Postural Balance</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013269" MajorTopicYN="N">Stochastic Processes</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014732" MajorTopicYN="N">Vibration</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Balance</Keyword><Keyword MajorTopicYN="Y">Electrical stimulation</Keyword><Keyword MajorTopicYN="Y">Noise stimulation</Keyword><Keyword MajorTopicYN="Y">Stochastic resonance</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>11</Month><Day>30</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2018</Year><Month>03</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2018</Year><Month>04</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2018</Year><Month>4</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>10</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2018</Year><Month>4</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">29704801</ArticleId><ArticleId IdType="pii">S0966-6362(18)30427-2</ArticleId><ArticleId IdType="doi">10.1016/j.gaitpost.2018.04.031</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Irlande (pays)</li></country><region><li>Leinster</li></region><settlement><li>Dublin</li></settlement><orgName><li>University College Dublin</li></orgName></list><tree><country name="Irlande (pays)"><region name="Leinster"><name sortKey="Severini, Giacomo" sort="Severini, Giacomo" uniqKey="Severini G" first="Giacomo" last="Severini">Giacomo Severini</name></region><name sortKey="Delahunt, Eamonn" sort="Delahunt, Eamonn" uniqKey="Delahunt E" first="Eamonn" last="Delahunt">Eamonn Delahunt</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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