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Human movement analysis using stereophotogrammetry: part 4: assessment of anatomical landmark misplacement and its effects on joint kinematics

Della Croce, Ugo and Leardini, Alberto and Chiari, Lorenzo and Cappozzo, Aurelio (2005) Human movement analysis using stereophotogrammetry: part 4: assessment of anatomical landmark misplacement and its effects on joint kinematics. Gait & Posture, Vol. 21 (2), p. 226-237. eISSN 1879-2219. Article.

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DOI: 10.1016/j.gaitpost.2004.05.003

Abstract

Estimating the effects of different sources of error on joint kinematics is crucial for assessing the reliability of human movement analysis. The goal of the present paper is to review the different approaches dealing with joint kinematics sensitivity to rotation axes and the precision of anatomical landmark determination. Consistent with the previous papers in this series, the review is limited to studies performed with video-based stereophotogrammetric systems. Initially, studies dealing with estimates of precision in determining the location of both palpable and internal anatomical landmarks are reviewed. Next, the effects of anatomical landmark position uncertainty on anatomical frames are shown. Then, methods reported in the literature for estimating error propagation from anatomical axes location to joint kinematics are described. Interestingly, studies carried out using different approaches reported a common conclusion: when joint rotations occur mainly in a single plane, minor rotations out of this plane are strongly affected by errors introduced at the anatomical landmark identification level and are prone to misinterpretation. Finally, attempts at reducing joint kinematics errors due to anatomical landmark position uncertainty are reported. Given the relevance of this source of errors in the determination of joint kinematics, it is the authors’ opinion that further efforts should be made in improving the reliability of the joint axes determination.

Item Type:Article
ID Code:6942
Status:Published
Refereed:Yes
Uncontrolled Keywords:Stereophotogrammetry, human movement, anatomical landmark, joint kinematics
Subjects:Area 09 - Ingegneria industriale e dell'informazione > ING-INF/06 Bioingegneria elettronica e informatica
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze biomediche
Publisher:Elsevier
eISSN:1879-2219
Deposited On:11 Jan 2012 13:52

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