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Table 2 Intraobserver reliability analysis of slack angle and shear modulus in three different ankle positions

From: Reliability and diagnostic accuracy of corrected slack angle derived from 2D-SWE in quantitating muscle spasticity of stroke patients

Measurement 1st Examination 2nd Examination ICC (95% CI)
Shear modulus (kPa) (n = 14)
  PF 25° 12.25 ± 1.74 11.80 ± 1.73 0.802 (0.496–0.932)
 PF 5° 21.23 ± 4.35 20.79 ± 3.76 0.739 (0.363–0.908)
 DF 15° 64.87 ± 20.88 63.25 ± 18.69 0.984 (0.946–0.995)
Slack angle (°) (n = 13) − 2.98 ± 8.23 − 0.15 ± 9.24 0.791 (0.432–0.932)
  1. Data are means ± standard deviation
  2. ICC intraclass correlation coefficient, 95% confidence interval; PF plantarflexion, DF dorsiflexion