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Markerless three-dimensional gait analysis in healthy older adults: test–retest reliability and measurement error

2024-08Journal article Open access
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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.date.accessioned2024-08-28T11:54:54Z
dc.date.available2024-08-28T11:54:54Z
dc.date.issued2024-08
dc.descriptionThis work was supported by Fundação para a Ciência e Tecnologia: grant numbers DOI 10.54499/2020.07958.BD (PhD Grant), DOI: 10.54499/UIDB/00447/2020, and DOI: 10.54499/UIDP/00447/2020) attributed to CIPER–Centro Interdisciplinar de Estudo da Performance Humana (unit 447).pt_PT
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.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCarvalho A, Vanrenterghem J, Cabral S, Assunção A, Fernandes R, Veloso AP, et al. Markerless three-dimensional gait analysis in healthy older adults: test-retest reliability and measurement error. J Biomech. 2024;174:112280.pt_PT
dc.identifier.doi10.1016/j.jbiomech.2024.112280pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/17633
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0021929024003580pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectPhysiotherapypt_PT
dc.subjectRehabilitationpt_PT
dc.subjectBiomechanicspt_PT
dc.subjectMeasurement propertiespt_PT
dc.subjectOlder populationpt_PT
dc.subjectWalkingpt_PT
dc.subjectPointwise indicespt_PT
dc.titleMarkerless three-dimensional gait analysis in healthy older adults: test–retest reliability and measurement errorpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage112280pt_PT
oaire.citation.titleJournal of Biomechanicspt_PT
oaire.citation.volume174pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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