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Test-retest reliability, sensory weighting and clinical efficacy indicators of sensory organization test in chronic
Yijie Li1, Dongsen Liu1, Hao Chang1
1The School of Sports Medicine and Rehabilitation, Beijing Sport University, No. 48 Xinxi Road, Haidian District, Beijing, China.
Objectives:
To examined: (1) the reliability, minimum detectable change (MDC) and Minimum clinically important difference (MCID) of sensory organization test (SOT) in chronic ankle instability (CAI) individuals. (2) sensory reweighting system changes in individuals with and without CAI.
Design:
cross-sectional study.
Setting:
University laboratory.
Participants:
80 individuals with CAI and 68 individuals without CAI.
Main Outcome Measure:
We examined the equilibrium scores based on 6 environmental conditions of the SOT and calculated the test-retest reliability, MDC90 and MCID of the SOT in both groups. Additionally, we calculated the sensory weighting ratios among the somatosensory, vestibular, and vision systems based on specific SOT conditions.
Results:
We observed the reliability (ICC) of SOT is 0.65-0.80 and 0.61-0.82 in the CAI and control group. The MDC90 of each index of SOT is 4.50-9.29 and 2.78-9.54 in the CAI and control group. The MCID of each index of the SOT is 3.78-7.80 in the CAI group, and 2.34-8.01 in the control group.
Conclusions:
The SOT indices demonstrated fair to good reliability. Researchers can use it as a stable balance measurement tool. Although no significant difference in somatosensory weighting was found between the two groups, somatosensory remained the primary source of feedback in postural control.
