| Greater Q angle may not be a risk factor of Patellofemoral Pain Syndrome. | |
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MedLine Citation:
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PMID: 21177007 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: A greater Q-angle has been suggested as a risk factor for Patellofemoral Pain Syndrome. Greater frontal plane knee moment and impulse have been found to play a functional role in the onset of Patellofemoral Pain Syndrome in a running population. Therefore, the purpose of this investigation was to determine the relationship between Q-angle and the magnitude of knee abduction moment and impulse during running. METHODS: Q-angle was statically measured, using a goniometer from three markers on the anterior superior iliac spine, the midpoint of the patella and the tibial tuberosity. Thirty-one recreational runners (21 males and 10 females) performed 8-10 trials running at 4m/s (SD 0.2) on a 30m-runway. Absolute and normalized knee moment and impulse were calculated and correlated with Q-angle. FINDINGS: Negative correlations between Q-angle and the magnitude of peak knee abduction moment (R²=0.2444, R=-0.4944, P=0.005) and impulse (R²=0.2563, R=-0.5063, P=0.004) were found. Additionally, negative correlations between Q-angle and the magnitude of weight normalized knee abduction moment (R²=0.1842, R=-0.4292, P=0.016) and impulse (R²=0.2304, R=-0.4801, P=0.006) were found. INTERPRETATION: The findings indicate that greater Q-angle, which is actually associated with decreased frontal plane knee abduction moment and impulse during running, may not be a risk factor of Patellofemoral Pain Syndrome. |
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Authors:
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Sang-Kyoon Park; Darren J Stefanyshyn |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-12-20 |
Journal Detail:
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Title: Clinical biomechanics (Bristol, Avon) Volume: - ISSN: 1879-1271 ISO Abbreviation: - Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-12-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8611877 Medline TA: Clin Biomech (Bristol, Avon) Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Biomechanics Laboratory, Sport Science Institute, Korea National Sport University, Seoul, Republic of Korea; Running Injury Clinic, University of Calgary, Calgary, Alberta, Canada; Human Performance Laboratory, University of Calgary, Calgary, Alberta, Canada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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