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dc.contributor.authorSnoussi, Hichemen
dc.contributor.authorAmoud, Hassanen
dc.contributor.authorDoussot, Michelen
dc.contributor.authorHewson, Daviden
dc.contributor.authorDuchêne, Jacquesen
dc.date.accessioned2019-01-28T13:13:06Z
dc.date.available2019-01-28T13:13:06Z
dc.date.issued2006-12-31
dc.identifier.citationSnoussi H, Amoud H, Doussot M, Hewson D, Duchêne J (2006) 'Reconstructed phase spaces of intrinsic mode functions : application to postural stability analysis', Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 1 (), pp.4584-9.en
dc.identifier.issn1557-170X
dc.identifier.pmid17946253
dc.identifier.doi10.1109/IEMBS.2006.259922
dc.identifier.urihttp://hdl.handle.net/10547/623103
dc.description.abstractIn this contribution, we propose an efficient nonlinear analysis method characterizing postural steadiness. The analyzed signal is the displacement of the centre of pressure (COP) collected from a force plate used for measuring postural sway. The proposed method consists of analyzing the nonlinear dynamics of the intrinsic mode functions (IMF) of the COP signal. The nonlinear properties are assessed through the reconstructed phase spaces of the different IMFs. This study shows some specific geometries of the attractors of some intrinsic modes. Moreover, the volume spanned by the geometric attractors in the reconstructed phase space represents an efficient indicator of the postural stability of the subject. Experiments results corroborate the effectiveness of the method to blindly discriminate young subjects, elderly subjects and subjects presenting a risk of falling.
dc.language.isoenen
dc.publisherIEEEen
dc.relation.urlhttps://ieeexplore.ieee.org/document/4462823en
dc.subjectfall risken
dc.subjectbalanceen
dc.subjectfallsen
dc.titleReconstructed phase spaces of intrinsic mode functions : application to postural stability analysisen
dc.typeArticleen
dc.identifier.journalConference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conferenceen
dc.date.updated2019-01-28T13:07:31Z
html.description.abstractIn this contribution, we propose an efficient nonlinear analysis method characterizing postural steadiness. The analyzed signal is the displacement of the centre of pressure (COP) collected from a force plate used for measuring postural sway. The proposed method consists of analyzing the nonlinear dynamics of the intrinsic mode functions (IMF) of the COP signal. The nonlinear properties are assessed through the reconstructed phase spaces of the different IMFs. This study shows some specific geometries of the attractors of some intrinsic modes. Moreover, the volume spanned by the geometric attractors in the reconstructed phase space represents an efficient indicator of the postural stability of the subject. Experiments results corroborate the effectiveness of the method to blindly discriminate young subjects, elderly subjects and subjects presenting a risk of falling.


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