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Table 3 Inter-rater reliability of the five muscle performance tests

From: The intra- and inter-rater reliability of five clinical muscle performance tests in patients with and without neck pain

First assessment

ICC agreement

95% CI

Meandiff_AB (SDdiff_AB)

SEM consistency

LOA

SDC

JPE Rotation

0.51

0.19 - 0.70

0.04 (0.35)

0.50

-0.651 - 0.729

0.69

JPE Flexion

0.75

0.59 - 0.85

0.02 (0.31)

0.22

-0.560 - 0.628

0.61

JPE Extension

0.51

0.20 - 0.70

0.11 (0.38)

0.27

-0.644 - 0.862

0.75

CCFT

0.85

0.76 - 0.91

0.25 (2.31)

1.64

-4.281 - 4.789

4.54

Neck flexor muscle endurance (supine)

0.73

0.59 - 0.83

5.48 (21.56)

15.25

-36.78 - 47.74

42.26

Neck flexor muscle endurance (sitting 45°)

0.56

0.37 - 0.71

9.63 (51.32)

36.29

-90.96 - 110.22

100.59

Neck extensor test

0.19

-0.06 - 0.42

2.70 (30.94)

21.88

-57.94 - 63.34

60.64

Second assessment

      

JPE Rotation

0.57

0.28 - 0.74

0.00 (0.28)

0.20

-0.544 - 0.546

0.55

JPE Flexion

0.71

0.52 - 0.82

0.06 (0.36)

0.25

-0.638 - 0.758

0.70

JPE Extension

0.69

0.48 - 0.81

0.10 (0.38)

0.27

-0.644 - 0.841

0.75

CCFT

0.86

0.81 - 0.93

0.33 (2.20)

1.55

-3.976 - 4.632

4.30

Neck flexor muscle endurance (supine)

0.70

0.55 - 0.81

-4.07 (22.51)

15.92

-48.19 - 40.05

44.12

Neck flexor muscle endurance (sitting 45°)

0.74

0.56 - 0.84

16.98 (49.71)

35.15

-80.45- 114.41

97.43

Neck extensor test

0.25

-0.01 - 0.47

-1.37 (33.35)

23.58

-66.74 - 64.0

65.37

  1. JPE = Joint position error, CCFT = Cranio-Cervical Flexion Test. 95% CI = 95% confidence interval, ICC agreement = Inter class correlation coefficients. Meandiff_AB = mean difference between examiner A and B, SDdiff_AB = standard deviation of the mean difference between examiner A and B. SEM = standard error of mesuremeant, LOA = Limits of agreements, SDC = smallest detectable change.