Dynamic posturography using a new movable multidirectional platform driven by gravity.
Identifieur interne : 001272 ( Main/Exploration ); précédent : 001271; suivant : 001273Dynamic posturography using a new movable multidirectional platform driven by gravity.
Auteurs : D A C M. Commissaris [Pays-Bas] ; P H J A. Nieuwenhuijzen ; S. Overeem ; A. De Vos ; J E J. Duysens ; B R BloemSource :
- Journal of neuroscience methods [ 0165-0270 ] ; 2002.
Descripteurs français
- KwdFr :
- MESH :
- physiologie : Jambe, Mouvement, Posture, Réflexe, Équilibre postural.
- Adulte, Femelle, Gravitation, Humains, Mâle, Rotation, Électromyographie.
English descriptors
- KwdEn :
- MESH :
- physiology : Leg, Movement, Postural Balance, Posture, Reflex.
- Adult, Electromyography, Female, Gravitation, Humans, Male, Rotation.
Abstract
Human upright balance control can be quantified using movable platforms driven by servo-controlled torque motors (dynamic posturography). We introduce a new movable platform driven by the force of gravity acting upon the platform and the subject standing on it. The platform consists of a 1 m2 metal plate, supported at each of its four corners by a cable and two magnets. Sudden release of the magnets on three sides of the platform (leaving one side attached) induces rotational perturbations in either the pitch or roll plane. Release of all magnets causes a purely vertical displacement. By varying the slack in the supporting cables, the platform can generate small (0.5 degrees ) to very destabilising (19 degrees ) rotations. Experiments in healthy subjects showed that the platform generated standardised and reproducible perturbations. The peak rotation velocity well exceeded the threshold required to elicit postural responses in the leg muscles. Onset latencies were comparable to those evoked by torque motor-driven platforms. Randomly mixed multidirectional perturbations of large amplitude forced the subject to use compensatory steps (easily possible on the large support surface), with little confounding influence of habituation. We conclude that this gravity-driven multidirectional platform provides a useful and versatile tool for dynamic posturography.
DOI: 10.1016/s0165-0270(01)00477-0
PubMed: 11741724
Affiliations:
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Nieuwenhuijzen</name></author><author><name sortKey="Overeem, S" sort="Overeem, S" uniqKey="Overeem S" first="S" last="Overeem">S. Overeem</name></author><author><name sortKey="De Vos, A" sort="De Vos, A" uniqKey="De Vos A" first="A" last="De Vos">A. De Vos</name></author><author><name sortKey="Duysens, J E J" sort="Duysens, J E J" uniqKey="Duysens J" first="J E J" last="Duysens">J E J. Duysens</name></author><author><name sortKey="Bloem, B R" sort="Bloem, B R" uniqKey="Bloem B" first="B R" last="Bloem">B R Bloem</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2002">2002</date><idno type="RBID">pubmed:11741724</idno><idno type="pmid">11741724</idno><idno type="doi">10.1016/s0165-0270(01)00477-0</idno><idno type="wicri:Area/Main/Corpus">001300</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001300</idno><idno type="wicri:Area/Main/Curation">001300</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">001300</idno><idno type="wicri:Area/Main/Exploration">001300</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Dynamic posturography using a new movable multidirectional platform driven by gravity.</title><author><name sortKey="Commissaris, D A C M" sort="Commissaris, D A C M" uniqKey="Commissaris D" first="D A C M" last="Commissaris">D A C M. 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De Vos</name></author><author><name sortKey="Duysens, J E J" sort="Duysens, J E J" uniqKey="Duysens J" first="J E J" last="Duysens">J E J. Duysens</name></author><author><name sortKey="Bloem, B R" sort="Bloem, B R" uniqKey="Bloem B" first="B R" last="Bloem">B R Bloem</name></author></analytic><series><title level="j">Journal of neuroscience methods</title><idno type="ISSN">0165-0270</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult (MeSH)</term><term>Electromyography (MeSH)</term><term>Female (MeSH)</term><term>Gravitation (MeSH)</term><term>Humans (MeSH)</term><term>Leg (physiology)</term><term>Male (MeSH)</term><term>Movement (physiology)</term><term>Postural Balance (physiology)</term><term>Posture (physiology)</term><term>Reflex (physiology)</term><term>Rotation (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte (MeSH)</term><term>Femelle (MeSH)</term><term>Gravitation (MeSH)</term><term>Humains (MeSH)</term><term>Jambe (physiologie)</term><term>Mouvement (physiologie)</term><term>Mâle (MeSH)</term><term>Posture (physiologie)</term><term>Rotation (MeSH)</term><term>Réflexe (physiologie)</term><term>Électromyographie (MeSH)</term><term>Équilibre postural (physiologie)</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Jambe</term><term>Mouvement</term><term>Posture</term><term>Réflexe</term><term>Équilibre postural</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Leg</term><term>Movement</term><term>Postural Balance</term><term>Posture</term><term>Reflex</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Electromyography</term><term>Female</term><term>Gravitation</term><term>Humans</term><term>Male</term><term>Rotation</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Femelle</term><term>Gravitation</term><term>Humains</term><term>Mâle</term><term>Rotation</term><term>Électromyographie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Human upright balance control can be quantified using movable platforms driven by servo-controlled torque motors (dynamic posturography). We introduce a new movable platform driven by the force of gravity acting upon the platform and the subject standing on it. The platform consists of a 1 m2 metal plate, supported at each of its four corners by a cable and two magnets. Sudden release of the magnets on three sides of the platform (leaving one side attached) induces rotational perturbations in either the pitch or roll plane. Release of all magnets causes a purely vertical displacement. By varying the slack in the supporting cables, the platform can generate small (0.5 degrees ) to very destabilising (19 degrees ) rotations. Experiments in healthy subjects showed that the platform generated standardised and reproducible perturbations. The peak rotation velocity well exceeded the threshold required to elicit postural responses in the leg muscles. Onset latencies were comparable to those evoked by torque motor-driven platforms. Randomly mixed multidirectional perturbations of large amplitude forced the subject to use compensatory steps (easily possible on the large support surface), with little confounding influence of habituation. We conclude that this gravity-driven multidirectional platform provides a useful and versatile tool for dynamic posturography.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">11741724</PMID><DateCompleted><Year>2002</Year><Month>02</Month><Day>28</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>01</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0165-0270</ISSN><JournalIssue CitedMedium="Print"><Volume>113</Volume><Issue>1</Issue><PubDate><Year>2002</Year><Month>Jan</Month><Day>15</Day></PubDate></JournalIssue><Title>Journal of neuroscience methods</Title><ISOAbbreviation>J Neurosci Methods</ISOAbbreviation></Journal><ArticleTitle>Dynamic posturography using a new movable multidirectional platform driven by gravity.</ArticleTitle><Pagination><MedlinePgn>73-84</MedlinePgn></Pagination><Abstract><AbstractText>Human upright balance control can be quantified using movable platforms driven by servo-controlled torque motors (dynamic posturography). We introduce a new movable platform driven by the force of gravity acting upon the platform and the subject standing on it. The platform consists of a 1 m2 metal plate, supported at each of its four corners by a cable and two magnets. Sudden release of the magnets on three sides of the platform (leaving one side attached) induces rotational perturbations in either the pitch or roll plane. Release of all magnets causes a purely vertical displacement. By varying the slack in the supporting cables, the platform can generate small (0.5 degrees ) to very destabilising (19 degrees ) rotations. Experiments in healthy subjects showed that the platform generated standardised and reproducible perturbations. The peak rotation velocity well exceeded the threshold required to elicit postural responses in the leg muscles. Onset latencies were comparable to those evoked by torque motor-driven platforms. Randomly mixed multidirectional perturbations of large amplitude forced the subject to use compensatory steps (easily possible on the large support surface), with little confounding influence of habituation. 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De Vos</name><name sortKey="Duysens, J E J" sort="Duysens, J E J" uniqKey="Duysens J" first="J E J" last="Duysens">J E J. Duysens</name><name sortKey="Nieuwenhuijzen, P H J A" sort="Nieuwenhuijzen, P H J A" uniqKey="Nieuwenhuijzen P" first="P H J A" last="Nieuwenhuijzen">P H J A. Nieuwenhuijzen</name><name sortKey="Overeem, S" sort="Overeem, S" uniqKey="Overeem S" first="S" last="Overeem">S. Overeem</name></noCountry><country name="Pays-Bas"><region name="Gueldre"><name sortKey="Commissaris, D A C M" sort="Commissaris, D A C M" uniqKey="Commissaris D" first="D A C M" last="Commissaris">D A C M. Commissaris</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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