Table 1: The test – retest reliability results of the feedback sensor device and the real time ultrasound imaging of TrA thickness.

Measurements ICC %CV SEMs
Feedback Sensor 0.946 2.6 2.47 (0.54%)
TrA thickness 0.931 8.05 0.104 (2.09%)

ICC: Intraclass Correlation Coefficients; CV: Coefficient of Variation; SEMs: Standard Error of Measurements