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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

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Published on: September 18, 2020

Interrater reliability of the star excursion balance test.

Phillip A Gribble¹, Sarah E Kelly, Kathryn M Refshauge

¹University of Toledo, OH.

Journal of Athletic Training

|September 27, 2013

Summary

The Star Excursion Balance Test (SEBT) demonstrates excellent interrater reliability when assessors are trained, supporting its use in clinical and research settings. This dynamic postural control assessment is reliable across multiple sites and scoring methods.

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Area of Science:

Biomechanics and Motor Control
Physical Therapy and Rehabilitation
Sports Medicine

Background:

Dynamic postural control is increasingly favored over static measures for functional assessment.
The Star Excursion Balance Test (SEBT) is a frequently used dynamic postural control measurement.
Prior studies indicated potential issues with interrater reliability for the SEBT.

Purpose of the Study:

To evaluate the interrater reliability of the SEBT across two testing sites.
To compare the interrater reliability of normalized versus nonnormalized SEBT performance scores.

Main Methods:

A descriptive laboratory study involving 29 healthy adults aged 18-50.
Five raters assessed participants at two university research laboratory sites.
The study analyzed normalized and nonnormalized reaching distances, considering mean and maximum values from three trials.

Main Results:

Excellent interrater reliability was observed for all 16 analyzed SEBT measures.
Intraclass correlation coefficients for normalized maximum excursion distances ranged from 0.86 to 0.92.
Nonnormalized measurements showed even stronger reliability, with coefficients ranging from 0.89 to 0.94.

Conclusions:

The SEBT exhibits excellent interrater reliability when raters receive standardized training.
Findings support the SEBT's utility as a reliable assessment tool in diverse clinical and research environments.
High reliability across normalized and nonnormalized scores strengthens SEBT's application, particularly in multi-site studies.