| The mechanical relationship between the rearfoot, pelvis and low-back. | |
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MedLine Citation:
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PMID: 20889344 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The purpose of this study was first to investigate whether foot pronation (measured as calcaneal eversion) induced an anterior tilt of the pelvis and increased the degree of lumbar lordosis. Second the study investigated whether foot supination (measured as calcaneal inversion) induced a posterior pelvic tilt and a decreased lumbar lordosis. Participants placed their feet in 18 different foot positions while standing on a rigid platform. Seven of these positions ranged from 15 degrees of foot eversion to 15 degrees of foot inversion and 11 positions ranged from 40 degrees of external foot rotation to 40 degrees of internal foot rotation. Pelvic tilt and lumbar lordosis were estimated using a 3D motion analysis system. Foot pronation and supination did not have a significant relationship with pelvic tilt (r=0.3) and lumbar lordosis (r=0.05). Internally rotating the legs caused the pelvis to tilt anteriorly and externally rotating the legs caused the pelvis to tilt posteriorly (r=0.58). There was no relationship between leg rotation and lumbar lordosis (r=0.24). Since the effects of pelvic tilt on the lumbar spine were only noticeable when pelvic tilt was exaggerated beyond values seen this study it seems unlikely that there is a link between induced foot pronation and an increase in lumbar lordosis. |
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Authors:
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Karine Duval; Tania Lam; Dave Sanderson |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Gait & posture Volume: 32 ISSN: 1879-2219 ISO Abbreviation: Gait Posture Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-11-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9416830 Medline TA: Gait Posture Country: England |
Other Details:
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Languages: eng Pagination: 637-40 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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School of Human Kinetics, University of British Columbia, Vancouver, Canada. kduval@interchange.ubc.ca |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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