Document Detail

Reliability and validity of electrogoniometry measurement of lower extremity movement.
MedLine Citation:
PMID:  20180734     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To establish the reliability, accuracy and concurrent validity of electrogoniometers for measuring extreme lower extremity movements.
STUDY DESIGN: Reliability, accuracy and validity study.
METHODS: This project employed two experiments. Investigation I determined electrogoniometer accuracy compared to a digital protractor. Investigation II compared electrogoniometers to a criterion measure, motion analysis, in sagittal plane dance movements in 17 dancers. Intraclass correlation coefficients (ICC) and standard error of measurement (SEM) were calculated for hip, knee, and ankle sagittal plane angular displacements.
RESULTS: In Investigation I, electrogoniometer to protractor correlations were high (r > or = 0.998, SEM < or =3.65 degrees ). In Investigation II, instrument and intra-rater reliability correlations were high (r > or = 0.983 and r > or = 0.972, SEM < or = 3.49 degrees and < or =4.48 degrees ), as were concurrent validity correlations (r > or = 0.949, SEM < or =6.80 degrees ) to motion analysis.
CONCLUSIONS: This error may be acceptable for lower extremity studies with extreme movements when motion capture is unavailable.
S Bronner; S Agraharasamakulam; S Ojofeitimi
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Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  Journal of medical engineering & technology     Volume:  34     ISSN:  1464-522X     ISO Abbreviation:  J Med Eng Technol     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-03-12     Completed Date:  2010-06-16     Revised Date:  2014-07-30    
Medline Journal Info:
Nlm Unique ID:  7702125     Medline TA:  J Med Eng Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  232-42     Citation Subset:  IM    
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MeSH Terms
Arthrometry, Articular / methods*
Dancing / physiology*
Joints / physiology*
Leg / physiology*
Range of Motion, Articular / physiology*
Reproducibility of Results
Sensitivity and Specificity
Signal Processing, Computer-Assisted
Young Adult

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

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