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Intrarater Test-Retest Reliability of Static and Dynamic Stability Indexes Measurement Using the Biodex® Balance System During Unilateral Stance.
J Appl Biomech. 2013 Jul 20;
Authors: Arifin N, Abu Osman NA, Wan Abas WA
Abstract
The measurements of postural balance often involve measurement error which affects the analysis and interpretation of the outcomes. In most of the existing clinical rehabilitation research, the ability to produce reliable measures is a prerequisite for an accurate assessment of an intervention after a period of time. Although clinical balance assessment has been performed in previous study, none has determined the intrarater test-retest reliability of static and dynamic stability indexes during dominant single stance. In this study, one rater examined twenty healthy university students (Female= 12, Male= 8) in two sessions separated by seven days intervals. Three stability indexes which are Overall stability index (OSI), anterior/ posterior stability index (APSI), and medial/ lateral stability index (MLSI) in static and dynamic conditions were measured during single dominant stance. Intraclass correlation coefficient (ICC), standard error measurement (SEM) and 95% confidence interval (95% CI) were calculated. Test-retest ICC for OSI, APSI, and MLSI were 0.85, 0.78, and 0.84 during static condition while 0.77, 0.77, and 0.65 during dynamic condition, respectively. We concluded that the postural stability assessment using Biodex balance system (BSS) demonstrates 'good to excellent' test-retest reliability over a one-week time interval.
PMID: 23878204 [PubMed - as supplied by publisher]
Read more... http://www.ncbi.nlm.nih.gov/pubmed/23878204?dopt=Abstract
