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Markerless three-dimensional gait analysis in healthy older adults

2024-09Artigo científico Acesso aberto
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dc.contributor.authorCarvalho, Andreia
dc.contributor.authorVanrenterghem, Jos
dc.contributor.authorCabral, Sílvia
dc.contributor.authorAssunção, Ana
dc.contributor.authorFernandes, Rita
dc.contributor.authorVeloso, António P.
dc.contributor.authorMoniz-Pereira, Vera
dc.contributor.institutionComprehensive Health Research Centre (CHRC) - pólo NMS
dc.contributor.institutionNOVA Medical School|Faculdade de Ciências Médicas (NMS|FCM)
dc.contributor.pblElsevier Science B.V., Amsterdam.
dc.date.accessioned2024-09-03T22:20:32Z
dc.date.available2024-09-03T22:20:32Z
dc.date.issued2024-09
dc.descriptionPublisher Copyright: © 2024 The Authors
dc.description.abstractIn older adults, gait analysis may detect changes that signal early disease states, yet challenges in biomechanical screening limit widespread use in clinical or community settings. Recently, a markerless method from multi-camera video data has become accessible, making screenings less challenging. This study evaluated the test–retest reliability and measurement error of markerless gait kinematics and kinetics in healthy older adults. Twenty-nine healthy older adults performed gait analysis on two occasions, at preferred walking speed, using their everyday clothes. Lower limb angles and moments were averaged from 8 gait cycles. Integrated pointwise indices [Intraclass Correlation Coefficient (ICCA,K) and Standard Error of Measurement (SEM)] were calculated for curve data, as well as ICCA,K, and SEM [95 % confidence intervals] for selected peaks. Generally, kinematic ICCs were good (>0.75) and reasonably stable throughout the gait cycle, except for the hip kinematics during the swing phase in the sagittal plane and pelvis tilt and rotation. The integrated and peaks SEM were <2.4°. The reliability of kinetics was similar (ICC>0.75), except for the transverse hip moment and abduction peak, fluctuating more during the swing than through the stance phase. SEM were < 0.07Nm/Kg. In conclusion, these results showed good overall test–retest reliability for markerless gait kinematics and kinetics for the hip, knee, and ankle joints, moderate for the pelvis angles, and error levels of ≤5°, and SEM%≤5% for the sagittal plane. This supports this method's use in assessing gait in healthy older adults, including kinetics, for which reliability data from markerless systems is difficult to find reported.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent6277535
dc.identifier.doi10.1016/j.jbiomech.2024.112280
dc.identifier.issn0021-9290
dc.identifier.otherPURE: 98742647
dc.identifier.otherPURE UUID: 53e7d718-f88f-492d-b7c7-1bfa548f1fe2
dc.identifier.otherScopus: 85201703532
dc.identifier.otherPubMed: 39153296
dc.identifier.urihttp://hdl.handle.net/10362/171134
dc.identifier.urlhttps://www.scopus.com/pages/publications/85201703532
dc.language.isoeng
dc.peerreviewedyes
dc.subjectBiomechanics
dc.subjectMeasurement properties
dc.subjectOlder population
dc.subjectPointwise indices
dc.subjectWalking
dc.subjectBiophysics
dc.subjectBiomedical Engineering
dc.subjectOrthopedics and Sports Medicine
dc.subjectRehabilitation
dc.titleMarkerless three-dimensional gait analysis in healthy older adultsen
dc.title.subtitletest–retest reliability and measurement erroren
dc.typejournal article
degois.publication.titleJournal Of Biomechanics
degois.publication.volume174
dspace.entity.typePublication
rcaap.rightsopenAccess

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