Document Detail


Isometric strength assessment, part I: static testing does not accurately predict dynamic lifting capacity.
MedLine Citation:
PMID:  20978337     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To determine if isometric (static) strength accurately predicts dynamic lifting capacity.
PARTICIPANTS: 107,755 male and 23,078 female prospective workers taking part in a post-offer employment test.
METHODS: Subjects were tested for strength three standard static lifts and attained physical maxima for four dynamic lifts.
RESULTS: The data confirms modest correlations between isometric and dynamic measures. However, the standard errors of estimate for all isometric-to-dynamic predictions make such predictions meaningless for the practical purpose for which they are most commonly used.
CONCLUSIONS: The Static Leg Lift, Static Arm Lift and Static Back (Torso) Lift are not appropriate for making predictions relative to dynamic lifting capacity. Given the likely degree of error in such predictions, and in light of potential safety concerns as reported by previous investigators, employers, clinicians and risk managers now have substantial objective evidence to call such testing into question.
Authors:
Larry Feeler; James D St James; Darrell W Schapmire
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Work (Reading, Mass.)     Volume:  37     ISSN:  1875-9270     ISO Abbreviation:  Work     Publication Date:  2010  
Date Detail:
Created Date:  2010-10-27     Completed Date:  2011-02-04     Revised Date:  2011-03-07    
Medline Journal Info:
Nlm Unique ID:  9204382     Medline TA:  Work     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  301-8     Citation Subset:  IM    
Affiliation:
lfeeler@grandecom.net
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MeSH Terms
Descriptor/Qualifier:
Biomechanics / physiology
Female
Humans
Isometric Contraction / physiology*
Lifting*
Male
Muscle Strength / physiology*
Predictive Value of Tests
Work Capacity Evaluation*

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


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