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Table 6 Test-retest reliability of Pressure Pain Threshold (PPT) and Balance/Postural Control (SWAY)

From: Reliability, construct and discriminative validity of clinical testing in subjects with and without chronic neck pain

 

Variable

N

MDC

ICC

(95% CI)

95% LOA

SWAY (cm.)

Romberg eyes open (CEA)

27

7.91

0.52

(0.18; 0.75)

(-7.42; 8.40)

Romberg eyes open (A/P)

27

1.84

0.57

(0.24; 0.78)

(-1.87; 1.81)

Romberg eyes open (M/L)

27

1.68

0.39

(0.03; 0.67)

(-1.50; 1.86)

Romberg eyes open (COP)

25

1.38

0.79

(0.57; 0.90)

(-1.38; 1.40)

Romberg eyes closed (CEA)

27

6.47

0.79

(0.59; 0.90)

(-6.26; 6.69)

Romberg eyes closed (A/P)

27

1.96

0.60

(0.29; 0.80)

(-2.02; 1.98)

Romberg eyes closed (M/L)

27

1.71

0.69

(0.43; 0.85)

(-1.71; 1.72)

Romberg eyes closed (COP)

25

3.84

0.77

(0.55; 0.89)

(-2.82; 2.83)

Single leg stance (CEA)

21

7.80

0.58

(0.21; 0.80)

(-8.54; 7.04)

Single leg stance (A/P)

21

1.94

0.57

(0.18; 0.80)

(-1.97; 1.92)

Single leg stance (M/L)

21

1.39

0.53

(0.14; 0.78)

(-1.51; 1.27)

Single leg stance (COP)

21

4.74

0.75

(0.45; 0.89)

(-4.70; 4.78)

PPT (kgf)

Tibialis Anterior

27

1.90

0.86

(0.71; 0.91)

(-1.91; 1.88)

C3-C4

27

0.90

0.89

(0.78; 0.95)

(-0.80; 1.01)

Infraspinatus

27

1.65

0.83

(0.66; 0.92)

(-1.65; 1.64)

  1. Minimal Detectable Change (MDC), Intraclass Correlation Coefficient (ICC), with 95% Confidence Intervals (95% CI) and 95% Limits of Agreement (LOA).
  2. Confidence Ellipse Areal (CEA), Anterior/Posterior displacement (A/P), Medial/Lateral displacement (M/L), Centre of Pressure path length (COP).