NDLI: Physiologically corrected coupled motion during gait analysis using a model-based approach.

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Physiologically corrected coupled motion during gait analysis using a model-based approach.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Bonnechère, Bruno Sholukha, Victor Salvia, Patrick Rooze, Marcel Van Sint Jan, Serge
Description	Author Affiliation: Bonnechère B ( Laboratory of Anatomy, Biomechanics and Organogenesis (LABO), Université Libre de Bruxelles, Belgium. Electronic address: bbonnech@ulb.ac.be.); Sholukha V ( Laboratory of Anatomy, Biomechanics and Organogenesis (LABO), Université Libre de Bruxelles, Belgium); Salvia P ( Laboratory of Anatomy, Biomechanics and Organogenesis (LABO), Université Libre de Bruxelles, Belgium.); Rooze M ( Laboratory of Anatomy, Biomechanics and Organogenesis (LABO), Université Libre de Bruxelles, Belgium.); Van Sint Jan S ( Laboratory of Anatomy, Biomechanics and Organogenesis (LABO), Université Libre de Bruxelles, Belgium.)
Abstract	Gait analysis is used in daily clinics for patients' evaluation and follow-up. Stereophotogrammetric devices are the most used tool to perform these analyses. Although these devices are accurate results must be analyzed carefully due to relatively poor reproducibility. One of the major issues is related to skin displacement artifacts. Motion representation is recognized reliable for the main plane of motion displacement, but secondary motions, or combined, are less reliable because of the above artifacts. Model-based approach (MBA) combining accurate joint kinematics and motion data was previously developed based on a double-step registration method. This study presents an extensive validation of this MBA method by comparing results with a conventional motion representation model. Thirty five healthy subjects participated to this study. Gait motion data were obtained from a stereophotogrammetric system. Plug-in Gait model (PiG) and MBA were applied to raw data, results were then compared. Range-of-motion, were computed for pelvis, hip, knee and ankle joints. Differences between PiG and MBA were then computed. Paired-sample t-tests were used to compare both methods. Normalized root-mean square errors were also computed. Shapes of the curves were compared using coefficient of multiple correlations. The MBA and PiG approaches shows similar results for the main plane of motion displacement but statistically significative discrepancies appear for the combined motions. MBA appear to be usable in applications (such as musculoskeletal modeling) requesting better approximations of the joints-of-interest thanks to the integration of validated joint mechanisms.
File Format	HTM / HTML
ISSN	09666362
Issue Number	1
Volume Number	41
e-ISSN	18792219
Journal	Gait & Posture
Language	English
Publisher	Elsevier
Publisher Date	2015-01-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Research Support, Non-u.s. Gov't Discipline Orthopedics Gait Humans Male Journal Article Hip Joint Reproducibility Of Results Young Adult Ankle Joint Biomechanical Phenomena Range Of Motion, Articular Knee Joint Models, Biological Adult Female Physiology Joints Photogrammetry
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Rehabilitation Biophysics Sports Science

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