Document Detail

Hip and knee joint loading during vertical jumping and push jerking.
MedLine Citation:
PMID:  23146164     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The internal joint contact forces experienced at the lower limb have been frequently studied in activities of daily living and rehabilitation activities. In contrast, the forces experienced during more dynamic activities are not well understood, and those studies that do exist suggest very high degrees of joint loading.
METHODS: In this study a biomechanical model of the right lower limb was used to calculate the internal joint forces experienced by the lower limb during vertical jumping, landing and push jerking (an explosive exercise derived from the sport of Olympic weightlifting), with a particular emphasis on the forces experienced by the knee.
FINDINGS: The knee experienced mean peak loadings of 2.4-4.6×body weight at the patellofemoral joint, 6.9-9.0×body weight at the tibiofemoral joint, 0.3-1.4×body weight anterior tibial shear and 1.0-3.1×body weight posterior tibial shear. The hip experienced a mean peak loading of 5.5-8.4×body weight and the ankle 8.9-10.0×body weight.
INTERPRETATION: The magnitudes of the total (resultant) joint contact forces at the patellofemoral joint, tibiofemoral joint and hip are greater than those reported in activities of daily living and less dynamic rehabilitation exercises. The information in this study is of importance for medical professionals, coaches and biomedical researchers in improving the understanding of acute and chronic injuries, understanding the performance of prosthetic implants and materials, evaluating the appropriateness of jumping and weightlifting for patient populations and informing the training programmes of healthy populations.
Daniel J Cleather; Jon E Goodwin; Anthony M J Bull
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-11-10
Journal Detail:
Title:  Clinical biomechanics (Bristol, Avon)     Volume:  28     ISSN:  1879-1271     ISO Abbreviation:  Clin Biomech (Bristol, Avon)     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-01-22     Completed Date:  2013-12-11     Revised Date:  2014-03-28    
Medline Journal Info:
Nlm Unique ID:  8611877     Medline TA:  Clin Biomech (Bristol, Avon)     Country:  England    
Other Details:
Languages:  eng     Pagination:  98-103     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
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MeSH Terms
Activities of Daily Living
Ankle / physiology
Biomechanical Phenomena
Exercise / physiology*
Hip Joint / physiology*
Knee Joint / physiology*
Models, Biological*
Muscle, Skeletal / physiology*
Shear Strength / physiology
Tibia / physiology
Weight Lifting / physiology*
Weight-Bearing / physiology*
Grant Support
088844//Wellcome Trust

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

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