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Table 3 Intraclass correlation coefficients (95% confidence intervals) for trunk displacement parameters across four conditions

From: Application of a virtual reality tracker-based system to measure seated postural stability in stroke patients

 

Solid surface

Soft surface

Eyes open

Eyes closed

Eyes open

Eyes closed

RDISTAP (mm)

0.81*** (0.58, 0.92)

0.74*** (0.47, 0.88)

0.51** (0.13, 0.76)

0.60** (0.26, 0.81)

RDISTML (mm)

0.28 (− 0.11, 0.61)

0.79*** (0.57, 0.91)

0.80*** (0.58, 0.91)

0.64** (0.31, 0.83)

MVELOAP (mm/s)

0.52** (0.13, 0.77)

0.54** (0.15, 0.78)

0.64*** (0.27, 0.84)

0.76*** (0.51, 0.89)

MVELOML (mm/s)

0.12 (− 0.20, 0.47)

0.72*** (0.45, 0.88)

0.75*** (0.45, 0.89)

0.53** (0.14, 0.77)

AREA-CE (mm2)

0.76 *** (0.45, 0.90)

0.90*** (0.79, 0.96)

0.89*** (0.76, 0.95)

0.33 (− 0.11, 0.66)

  1. RDISTML Root mean square distance in the medial–lateral direction, RDISTAP Root mean square distance in the anterior–posterior direction, MVELOML mean velocity in the medio-lateral direction, MVELOAP in the antero-posterior direction, AREA-CE 95% confidence ellipse area
  2. Significance level of the ICC: *p < 0.05; **p < 0.01; ***p < 0.001;