Influence of center of pressure estimation errors on 3D inverse dynamics solutions during gait at different velocities

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dc.contributor.authorCAMARGO JUNIOR, F.
dc.contributor.authorMarko Ackermann
dc.contributor.authorLOSS, J. F.
dc.contributor.authorSACCO, I. C. N.
dc.contributor.authorOrcidhttps://orcid.org/0000-0002-0252-5228
dc.date.accessioned2022-07-01T06:06:12Z
dc.date.available2022-07-01T06:06:12Z
dc.date.issued2013-12-05
dc.description.abstractThe aim of this study was to investigate the effect of errors in the location of the center of pressure (5 and 10 mm) on lower limb joint moment uncertainties at different gait velocities (1.0, 1.5, and 2.0 m/s). Our hypotheses were that the absolute joint moment uncertainties would be gradually reduced from distal to proximal joints and from higher to lower velocities. Joint moments of five healthy young adults were calculated by inverse dynamics using the bottom-up approach, depending on which estimate the uncertainty propagated. Results indicated that there is a linear relationship between errors in center of pressure and joint moment uncertainties. The absolute moment peak uncertainties expressed on the anatomic reference frames decreased from distal to proximal joints, confirming our first hypothesis, except for the abduction moments. There was an increase in moment uncertainty (up to 0.04 N m/kg for the 10 mm error in the center of pressure) from the lower to higher gait velocity, confirming our second hypothesis, although, once again, not for hip or knee abduction. Finally, depending on the plane of movement and the joint, relative uncertainties experienced variation (between 5 and 31%), and the knee joint moments were the most affected. © 2013 Human Kinetics, Inc.
dc.description.firstpage790
dc.description.issuenumber6
dc.description.lastpage797
dc.description.volume29
dc.identifier.citationCAMARGO JUNIOR, F.; ACKERMANN, M.; LOSS, J. F.; SACCO, I. C. N. Influence of center of pressure estimation errors on 3D inverse dynamics solutions during gait at different velocities. Journal of Applied Biomechanics, v. 29, n. 6, p. 790-797, December, 2013.
dc.identifier.doi10.1123/jab.29.6.790
dc.identifier.issn1543-2688
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4531
dc.relation.ispartofJournal of Applied Biomechanics
dc.rightsAcesso Restrito
dc.subject.otherlanguageBiomechanics
dc.subject.otherlanguageJoint moments
dc.subject.otherlanguagePoint of external force application
dc.subject.otherlanguageUncertainty
dc.subject.otherlanguageWalking speed
dc.titleInfluence of center of pressure estimation errors on 3D inverse dynamics solutions during gait at different velocities
dc.typeArtigo
fei.scopus.citations8
fei.scopus.eid2-s2.0-84893573752
fei.scopus.subjectBottom up approach
fei.scopus.subjectCenter of pressure
fei.scopus.subjectExternal force
fei.scopus.subjectJoint moment
fei.scopus.subjectLinear relationships
fei.scopus.subjectRelative uncertainty
fei.scopus.subjectUncertainty
fei.scopus.subjectWalking speed
fei.scopus.updated2024-07-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84893573752&origin=inward
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