Document Detail


The influence of sagittal center of pressure offset on gait kinematics and kinetics.
MedLine Citation:
PMID:  20047747     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: Kinetic patterns of the lower extremity joints have been shown to be influenced by modification of the location of the center of pressure (CoP) of the foot. The accepted theory is that a shifted location of the CoP alters the distance between the ground reaction force and the center of the joint, thereby modifying torques during gait. Various footwear designs have been reported to significantly alter the magnitude of sagittal joint torques during gait. However, the relationship between the CoP and the kinetic patterns in the sagittal plane has not been examined. The aim of this study was to evaluate the association between the sagittal location of the CoP and gait patterns during gait in healthy men. METHODS: A foot-worn biomechanical device which allows controlled manipulation of the CoP location was utilized. Fourteen healthy men underwent successive gait analysis with the device set to convey three different sagittal locations of the CoP: neutral, anterior offset and posterior offset. RESULTS: CoP translation in the sagittal plane (i.e., from posterior to anterior) significantly related with an ankle dorsiflexion torque and a knee extension torque shift throughout the stance phase. Likewise, an anterior translation of the CoP significantly reduced the extension torque at the hip during pre-swing. CONCLUSIONS: The study results confirm a direct correlation between sagittal offset of the CoP and the magnitude of joint torques throughout the lower extremity.
Authors:
Amir Haim; Nimrod Rozen; Alon Wolf
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Publication Detail:
Type:  Journal Article     Date:  2010-01-04
Journal Detail:
Title:  Journal of biomechanics     Volume:  43     ISSN:  1873-2380     ISO Abbreviation:  J Biomech     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-03-08     Completed Date:  2010-06-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0157375     Medline TA:  J Biomech     Country:  United States    
Other Details:
Languages:  eng     Pagination:  969-77     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2009 Elsevier Ltd. All rights reserved.
Affiliation:
Biorobotics and Biomechanics Lab (BRML), Faculty of Mechanical Engineering , Technion-Israel Institute of Technology, Haifa, Israel. amirhaim@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Acceleration
Adult
Ankle Joint / physiology*
Foot / physiology
Gait / physiology*
Hip Joint / physiology*
Humans
Kinetics
Knee Joint / physiology*
Male
Postural Balance / physiology*
Range of Motion, Articular / physiology
Walking / physiology*
Weight-Bearing / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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