TABLE III.

Y-Balance Test Interrater Reliability

TypeDirectionICC (95%CI)SEM (cm)MDC (cm)
Maximal Reach ICC (2,1)Anterior0.82 (0.72,0.89)3.1  8.7
Posteromedial0.81 (0.71,0.88)3.710.3
Posterolateral0.80 (0.68,0.87)4.211.5
Composite0.85 (0.76,0.91)9.024.8
Average Reach of 3 Trials ICC (2,3)Anterior0.93 (0.88,0.96)2.0  5.5
Posteromedial0.91 (0.85,0.94)2.7  7.5
Posterolateral0.85 (0.75,0.91)3.5  9.7
Composite0.91 (0.85,0.95)7.019.5
TypeDirectionICC (95%CI)SEM (cm)MDC (cm)
Maximal Reach ICC (2,1)Anterior0.82 (0.72,0.89)3.1  8.7
Posteromedial0.81 (0.71,0.88)3.710.3
Posterolateral0.80 (0.68,0.87)4.211.5
Composite0.85 (0.76,0.91)9.024.8
Average Reach of 3 Trials ICC (2,3)Anterior0.93 (0.88,0.96)2.0  5.5
Posteromedial0.91 (0.85,0.94)2.7  7.5
Posterolateral0.85 (0.75,0.91)3.5  9.7
Composite0.91 (0.85,0.95)7.019.5

CI, confidence interval; ICC, intraclass correlation coefficient; SEM, standard error of the measurement; MDC, minimal detectable difference (95%).

TABLE III.

Y-Balance Test Interrater Reliability

TypeDirectionICC (95%CI)SEM (cm)MDC (cm)
Maximal Reach ICC (2,1)Anterior0.82 (0.72,0.89)3.1  8.7
Posteromedial0.81 (0.71,0.88)3.710.3
Posterolateral0.80 (0.68,0.87)4.211.5
Composite0.85 (0.76,0.91)9.024.8
Average Reach of 3 Trials ICC (2,3)Anterior0.93 (0.88,0.96)2.0  5.5
Posteromedial0.91 (0.85,0.94)2.7  7.5
Posterolateral0.85 (0.75,0.91)3.5  9.7
Composite0.91 (0.85,0.95)7.019.5
TypeDirectionICC (95%CI)SEM (cm)MDC (cm)
Maximal Reach ICC (2,1)Anterior0.82 (0.72,0.89)3.1  8.7
Posteromedial0.81 (0.71,0.88)3.710.3
Posterolateral0.80 (0.68,0.87)4.211.5
Composite0.85 (0.76,0.91)9.024.8
Average Reach of 3 Trials ICC (2,3)Anterior0.93 (0.88,0.96)2.0  5.5
Posteromedial0.91 (0.85,0.94)2.7  7.5
Posterolateral0.85 (0.75,0.91)3.5  9.7
Composite0.91 (0.85,0.95)7.019.5

CI, confidence interval; ICC, intraclass correlation coefficient; SEM, standard error of the measurement; MDC, minimal detectable difference (95%).

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