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The reliability of the star-excursion test in assessing dynamic balance
1Department of Exercise Science, University of Mississippi 38677, USA.
Summary
The star-excursion test shows moderate reliability for quantifying dynamic balance. Practice sessions may improve results, suggesting a learning period is beneficial for accurate patient assessment.
Area of Science:
- Biomechanics
- Physical Therapy
- Sports Medicine
Background:
- Dynamic balance quantification is crucial for patient care planning.
- The star-excursion test is a clinical tool used to assess dynamic balance.
- Previous research has not evaluated the reliability of the star-excursion test.
Purpose of the Study:
- To evaluate the reliability of the star-excursion test for dynamic balance quantification.
- To determine the consistency of measurements obtained from the star-excursion test.
Main Methods:
- Twenty healthy subjects (18-35 years) participated.
- Subjects performed five reaching trials in four directions on one leg during two sessions.
- Intraclass correlation coefficient (ICC (2, 1)) was used to calculate reliability.
Main Results:
- Reliability estimates ranged from 0.67 to 0.87.
- Moderate reliability was observed, suggesting potential variability in measurements.
- Six duplicate practice sessions were recommended to potentially increase reliability above 0.86.
Conclusions:
- The star-excursion test demonstrated moderate reliability for dynamic balance assessment.
- Task complexity may influence the observed reliability.
- A learning period or practice sessions are recommended before formal testing to enhance measurement consistency.