title: Validity and reliability of the Kinect within functional assessment activities: comparison with standard stereophotogrammetry.
abstract: The recent availability of the Kinect™ sensor, a cost-effective markerless motion capture system (MLS), offers interesting possibilities in clinical functional analysis and rehabilitation. However, neither validity nor reproducibility of this device is known yet. These two parameters were evaluated in this study. Forty-eight volunteers performed shoulder abduction, elbow flexion, hip abduction and knee flexion motions; the same protocol was repeated one week later to evaluate reproducibility. Movements were simultaneously recorded by the Kinect (with Microsoft Kinect SDK v.1.5) MLS and a traditional marker-based stereophotogrammetry system (MBS). Considering the MBS as reference, discrepancies between MLS and MBS were evaluated by comparing the range of motion (ROM) between both systems. MLS reproducibility was found to be statistically similar to MBS results for the four exercises. Measured ROMs however were found different between the systems.
authors.affiliation: Laboratory of Anatomy, Biomechanics and Organogenesis (LABO), Université Libre de Bruxelles, CP 610, Lennik Street 808, 1070 Brussels, Belgium. Electronic address: bbonnech@ulb.ac.be.
authors.forename: B
authors.initials: B
authors.lastname: Bonnechère
authors.forename: B
authors.initials: B
authors.lastname: Jansen
authors.forename: P
authors.initials: P
authors.lastname: Salvia
authors.forename: H
authors.initials: H
authors.lastname: Bouzahouene
authors.forename: L
authors.initials: L
authors.lastname: Omelina
authors.forename: F
authors.initials: F
authors.lastname: Moiseev
authors.forename: V
authors.initials: V
authors.lastname: Sholukha
authors.forename: J
authors.initials: J
authors.lastname: Cornelis
authors.forename: M
authors.initials: M
authors.lastname: Rooze
authors.forename: S
authors.initials: S
authors.lastname: Van Sint Jan
mesh_terms: D000293:Adolescent; D000328:Adult; D001696:Biomechanical Phenomena; D004551:Elbow Joint / Q000502:physiology; D005260:Female; D006621:Hip Joint / Q000502:physiology; D006801:Humans; D007596:Joints / Q000502:physiology*; D007719:Knee Joint / Q000502:physiology; D008297:Male; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D010780:Photogrammetry; D016059:Range of Motion, Articular / Q000502:physiology*; D015203:Reproducibility of Results; D012785:Shoulder Joint / Q000502:physiology; D055815:Young Adult
keywords: Biomechanics; Markerless motion capture; Motion analysis; New technology