Table 5 Reliability of muscle echo-intensity measures for the maximum region of interest in the controls (dominant and nondominant sides) and patients with low back pain (affected and unaffected sides)

64.51

15.1

0.91

4.53

12.51

66.56

23.17

0.80

10.36

28.64

69.28

26.81

0.93

7.08

19.58

59.07

18.56

0.82

7.86

21.73

83.20

19.90

0.96

3.98

10.99

84.45

20.31

0.90

6.42

17.75

95.51

46.18

0.94

11.27

31.14

102.50

54.98

0.85

21.28

58.33

45.29

29.37

0.92

8.29

22.91

66.50

18.37

0.89

6.07

16.80

81.98

20.81

0.94

5.08

14.05

86.32

30.77

0.87

11.08

30.64

79.09

22.43

0.91

6.73

18.57

80.24

16.98

0.92

4.79

13.26

106.52

50.06

0.90

15.82

43.72

89.72

49.78

0.88

17.22

47.60

108.19

42.37

0.94

10.34

28.58

99.08

36.48

0.82

15.47

42.77

73.32

39.14

0.92

11.04

30.52

78.82

40.37

0.84

16.15

44.63

90.12

45.94

0.93

12.13

33.52

91.36

50.18

0.86

18.77

51.89

98.65

30.66

0.91

9.20

25.44

99.18

35.79

0.90

11.31

31.27

101.90

35.88

0.92

10.12

27.98

106.13

44.59

0.81

19.40

53.61

81.12

38.33

0.92

10.81

29.89

83.48

35.77

0.83

14.74

40.75

81.11

48.82

0.90

15.43

42.66

80.96

49.13

0.87

17.69

48.90

99.11

30.26

0.91

9.08

25.10

100.12

33.89

0.89

11.22

31.0