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Influence of heel lifts during standing in children with motor disorders
KTH, School of Engineering Sciences (SCI), Mechanics, Structural Mechanics.
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2011 (English)In: Gait & Posture, ISSN 0966-6362, E-ISSN 1879-2219, Vol. 34, no 3, 426-431 p.Article in journal (Refereed) Published
Abstract [en]

Heel wedges may influence standing posture but how and to what extent are unknown. Thirty-two children with motor disorders - 16 with arthrogryposis multiplex congenita (AMC) and 16 with cerebral palsy (CP) - and 19 control children underwent a three-dimensional motion analysis. Unassisted standing during 20s with shoes only and with heel lifts of 10,20 and 30 mm heights was recorded in a randomized order. The more weight-bearing limb or the right limb was chosen for analysis. In both the AMC and CP groups, significant changes were seen between various heel lifts in ankle, knee and pelvis, and in the control group in the ankle only. Between orthosis and non-orthosis users significant differences were seen between different heel lift conditions in ankle, knee and trunk in the AMC group and in the ankle in the CP group. Pelvis position changed toward less anterior tilt with increasing heel height, but led to increasing knee flexion in most of the children, except for the AMC Non-Ort group. Children with AMC and CP represent different motor disorders, but the heel wedges had a similar influence on pelvis, hip and knee positions in all children with CP and in the AMC orthosis users. A challenge is to apply heel heights adequate to each individual's orthopaedic and neurologic conditions to improve biomechanical alignment with respect to all body segments.

Place, publisher, year, edition, pages
2011. Vol. 34, no 3, 426-431 p.
Keyword [en]
Motion analysis, Arthrogryposis, Cerebral palsy, Wedges, Posture
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URN: urn:nbn:se:kth:diva-46867DOI: 10.1016/j.gaitpost.2011.06.015ISI: 000295771800024ScopusID: 2-s2.0-80052398559OAI: diva2:454300
QC 20111107Available from: 2011-11-07 Created: 2011-11-07 Last updated: 2011-11-07Bibliographically approved

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Pettersson, RobertGutierrez-Farewik, Elena
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