Document Detail

Comparison of measurement methods for quantifying hand force.
MedLine Citation:
PMID:  16147416     Owner:  NLM     Status:  MEDLINE    
Hand force is a known risk factor for upper extremity disorders. The objective of the present study was to determine the characteristics of, and the relationships between, exposure assessment methods to quantify hand force. Five methods, used in the laboratory or the field, were used to quantify hand force at three force magnitudes: two direct (or technical) measurement methods, force transducers and electromyography; an observational method; and two self-report approaches, force matching and a visual analogue scale. Five tasks, simulating manual work activities, were performed by 20 participants. The coefficients of variation of measures within and between participants were moderate. All approaches clearly distinguished between the three force levels tested. The reliability of the methods ranged from poor (observation method without information) to good (force transducers method and observation method with information). The measurement methods correlated moderately over all five tasks. Predictions of grip force across all five tasks were poor and even for single tasks the predictions were not much better. The tasks in this study were still simplified; in the field tasks are even more complex and the measurement characteristics might be expected to be less good. A hand force exposure assessment method should therefore be calibrated and tested for each type of hand activity before use.
Elin Koppelaar; Richard Wells
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Ergonomics     Volume:  48     ISSN:  0014-0139     ISO Abbreviation:  Ergonomics     Publication Date:  2005 Jun 
Date Detail:
Created Date:  2005-09-08     Completed Date:  2005-11-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0373220     Medline TA:  Ergonomics     Country:  England    
Other Details:
Languages:  eng     Pagination:  983-1007     Citation Subset:  IM; S    
Faculty of Human Movement Sciences, Vrije Universiteit, Amsterdam, The Netherlands.
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MeSH Terms
Hand / physiology*
Muscle Contraction / physiology*
Occupational Exposure / adverse effects*,  analysis
Reproducibility of Results
Risk Assessment
Task Performance and Analysis

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