Skip to main content

Table 5 Inter- and intra-rater reliability (Intra-class correlation coefficients, ICC) with 95% confidence interval (CI) and Cronbach’s alpha of thoracic spine posture and mobility measurements

From: Intra- and inter-rater reliability of thoracic spine mobility and posture assessments in subjects with thoracic spine pain

Variable Inter-rater (n = 32) Intra-rater (n = 32)
  ICC CI 95% Cronbach α ICC CI 95% Cronbach α
Posture inspection while standinga 0.28 (−0.55–0.67) 0.28 0.78 (0.56–0.89) 0.78
Posture inspection while sittinga 0.23 (−0.58–0.62) 0.23 0.87 (0.73–0.94) 0.87
Segmental mobility into flexionb −0.07 (−1.20–0.48) −0.07 0.79 (0.56–0.90) 0.79
Segmental mobility into extensionb −0.38 (−1.84–0.33) − 0.38 0.80 (0.59–0.90) 0.80
Posterior to anterior pressureb −0.17 (−1.39–0.43) − 0.17 0.69 (0.37–0.85) 0.69
Inclination of Th1–6 while standing (°) 0.81 (0.60–0.91) 0.82 0.86 (0.72–0.93) 0.86
Inclination of Th6–12 while standing (°) 0.69 (0.37–0.85) 0.69 0.70 (0.39–0.85) 0.72
Inclination of Th1–12 while standing (°) 0.82 (0.64–0.91) 0.82 0.83 (0.66–0.92) 0.83
Inclination of Th1–6 while sitting (°) 0.85 (0.67–0.93) 0.86 0.84 (0.67–0.92) 0.84
Inclination of Th6–12 while sitting (°) 0.60 (0.18–0.80) 0.60 0.80 (0.60–0.90) 0.80
Inclination of Th1–12 while sitting (°) 0.70 (0.37–0.85) 0.69 0.74 (0.47–0.87) 0.74
C7-Th5 flexion mobility (tape, mm) 0.28 (− 0.37–0.63) 0.30 0.66 (0.30–0.83) 0.65
Schober (spine in neutral, mm) 0.74 (0.47–0.87) 0.74 0.86 (0.72–0.93) 0.86
Schober (spine in flexion, mm) 0.74 (0.48–0.87) 0.75 0.72 (0.43–0.86) 0.73
Schober (spine in extensio, mm) 0.29 (−0.48–0.66) 0.28 0.30 (− 0.42–0.66) 0.30
Flexion mobility of Th1–6 while sitting (°) 0.19 (−0.67–0.60) 0.19 0.64 (0.26–0.82) 0.64
Flexion mobility of Th6–12 while sitting (°) 0.52 (0.02–0.77) 0.52 0.49 (−0.05–0.75) 0.49
Flexion mobility of Th1–12 while sitting (°) 0.48 (−0.06–0.75) 0.48 0.67 (0.32–0.84) 0.67
Extension mobility of Th1–6 while sitting (°) 0.61 (0.20–0.81) 0.61 0.35 (−0.33–0.68) 0.35
Extension mobility of Th6–12 while sitting (°) 0.58 (0.15–0.80) 0.58 0.30 (−0.43–0.66) 0.30
Extension mobility of Th1–12 while sitting (°) 0.62 (0.22–0.81) 0.62 0.46 (−0.10–0.74) 0.46
  1. a Evaluated in three categories: decreased thoracic kyphosis (flat back), normal kyphosis or hyperkyphosis
  2. b Sum of all thoracic spine motion segments recorded as hypomobile