Document Detail

Reliability of force-platform measures of postural sway and expertise-related differences.
MedLine Citation:
PMID:  22012498     Owner:  NLM     Status:  In-Data-Review    
CONTEXT: Although reliability is a population-specific property, few studies have investigated the measurement error associated with force-platform parameters in athletic populations.
OBJECTIVE: To investigate the skill-related differences between athletes and nonathletes in reliability of center-of-pressure (COP) summary measures under eyes-open (EO) and eyes-closed (EC) conditions.
DESIGN: Test-retest reliability study.
SETTING: COP was recorded during double-leg quiet standing on a Kistler force platform before and after a fatiguing treadmill exercise, with EO and EC.
PARTICIPANTS: 31 male participants including 15 athletes practiced in karate and 16 nonathletes.
MAIN OUTCOME MEASURES: Standard deviation (SD) of amplitude, phase-plane portrait, SD of velocity, mean total velocity, and area were calculated from 30-s COP data. Intraclass correlation coefficient (ICC), standard error of measurement, and coefficient of variation (CV) were used as estimates of reliability and precision.
RESULTS: Higher ICCs were found for COP measures in the athlete (compared with the nonathlete) group, postfatigued (compared with prefatigued) condition, and EC (compared with EO) tests. CVs smaller than 15% were obtained for most of the COP measures. SD of velocity in the anteroposterior direction showed the highest reliability in most conditions.
CONCLUSIONS: Tests with EC and to a lesser extent tests performed in the athlete group and in the postfatigued condition showed better reliability.
Zohreh Meshkati; Mehdi Namazizadeh; Mahyar Salavati; Masood Mazaheri
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of sport rehabilitation     Volume:  20     ISSN:  1543-3072     ISO Abbreviation:  J Sport Rehabil     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-10-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9206500     Medline TA:  J Sport Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  442-56     Citation Subset:  IM    
Science and Research Branch, Islamic Azad University, Tehran, Iran.
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