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Title: | Evaluation of stair motion contributes to new insights into hip osteoarthritis-related motion pathomechanics | Authors: | Meyer, Christophe A. G. CORTEN, Kristoff FIEUWS, Steffen Deschamps, Kevin Monari, Davide Wesseling, Mariska Simon, Jean-Pierre Desloovere, Kaat |
Issue Date: | 2016 | Publisher: | WILEY-BLACKWELL | Source: | JOURNAL OF ORTHOPAEDIC RESEARCH, 34 (2), p. 187-196 | Abstract: | Stair motion in the presence of hip osteoarthritis (OA) has received less attention than level walking. Its more strenuous aspect may shed the light on different locomotor strategies when compared to walking. We, therefore, aimed to define stair motion features associated to hip OA and to evaluate whether these specific features would differ from level walking and better characterize the hip pathological condition. Principal component and linear discriminant analyses were, respectively, used as data reduction and classification techniques. Our study highlighted that most of stair motion features associated to hip OA were similar to the ones of walking. Stair descent presented with the lowest misclassification error rate, ranging from 12% to 19% (estimated by cross-validation). But, features that may be considered as a mechanism to reduce demand on the hip abductors were found to be more important in the stair ascent condition. This was reflected by both, greater importance in the classification rule and variance compared with walking, that is, decreased hip internal rotation moment at mid-stance (72.50% vs. 57.63%) and increased trunk lateroflexion toward affected side (56.43% vs. 29.37%). This study emphasized the importance of investigating stair motion in hip osteoarthritic population by highlighting specific locomotor strategies. (c) 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:187-196, 2016. | Notes: | [Meyer, Christophe A. G.; Deschamps, Kevin; Desloovere, Kaat] KU Leuven Dept Rehabil Sci, Fac Kinesiol & Rehabil Sci, Leuven, Belgium. [Meyer, Christophe A. G.; Simon, Jean-Pierre] UZ Pellenberg Orthoped Dept, Univ Hosp Leuven, Pellenberg, Belgium. [Meyer, Christophe A. G.; Deschamps, Kevin; Desloovere, Kaat] Katholieke Univ Leuven, Univ Hosp Pellenberg, Lab Clin Mot Anal C MAL, Louvain, Belgium. [Corten, Kristoff] Ziekenhuis Oost Limburg Genk, Orthoped Assoc Genk, Genk, Belgium. [Fieuws, Steffen] KU Leuven Univ, I Biostat, Leuven, Belgium. [Fieuws, Steffen] Univ Hasselt, Leuven, Belgium. [Monari, Davide] KU Leuven Dept Mech Engn, Fac Engn, Leuven, Belgium. [Wesseling, Mariska] KU Leuven Human, Movement Biomech Res Grp, Leuven, Belgium. [Simon, Jean-Pierre] KU Leuven Dept Dev & Regenerat, Fac Med, Leuven, Belgium. | Keywords: | hip osteoarthritis; motion analysis; stair motion; principal component analysis; discriminant analysis;hip osteoarthritis; motion analysis; stair motion; principal component analysis; discriminant analysis | Document URI: | http://hdl.handle.net/1942/21721 | ISSN: | 0736-0266 | e-ISSN: | 1554-527X | DOI: | 10.1002/jor.22990 | ISI #: | 000370246300003 | Rights: | © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2017 |
Appears in Collections: | Research publications |
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