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Table 3 Relative and absolute reliability measures of all the parameters and walk tests

From: Reliability of timed walking tests and temporo-spatial gait parameters in youths with neurological gait disorders

Parameters

10MWTpref

10MWTmax

6MinWT

ICC (95 % CI)

SEM

SRD

SEM%

SRD%

ICC (95 % CI)

SEM

SRD

SEM%

SRD%

ICC (95 % CI)

SEM

SRD

SEM%

SRD%

Conventional parameters

Time (stopwatch) (s)

0.90 (0.80–0.95)

3.61

10.00

28.26

78.33

0.95 (0.89–0.98)

1.84

5.11

23.69

65.67

NA

NA

NA

NA

NA

Step count (n steps)

0.93 (0.85–0.96)

2.09

5.80

10.40

28.83

0.97 (0.93–0.98)

1.58

4.39

9.52

26.38

NA

NA

NA

NA

NA

Walking distance (m)

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

0.89 (0.77–0.95)

58.02

160.82

14.09

39.05

GAITRite parameters

Velocity (m/s)

0.82 (0.66–0.91)

0.26

0.72

26.09

72.25

0.86 (0.73–0.93)

0.20

0.55

13.22

36.36

0.90 (0.80–0.96)

0.14

0.40

11.38

31.55

Normalized velocity (m/s)

0.83 (0.67–0.92)

0.38

1.04

29.28

80.13

0.86 (0.73–0.93)

0.29

0.82

14.59

41.26

0.90 (0.79–0.95)

0.18

0.50

10.83

30.02

Cadence (steps/min)

0.88 (0.76–0.94)

14.20

39.37

13.74

38.10

0.70 (0.45–0.84)

16.92

46.91

12.66

35.10

0.88 (0.75–0.94)

8.93

24.76

7.66

21.24

Extremity-step-ratio L

0.87 (0.74–0.94)

0.13

0.36

18.28

50.62

0.89 (0.78–0.94)

0.08

0.21

9.29

24.39

0.96 (0.92–0.98)

0.04

0.10

4.36

12.09

Extremity-step-ratio R

0.82 (0.66–0.91)

0.09

0.26

11.93

34.46

0.90 (0.81–0.95)

0.09

0.24

10.19

27.16

0.93 (0.86–0.97)

0.04

0.12

5.15

14.29

Extremity-step-ratio MA

0.88 (0.75–0.94)

0.14

0.38

19.53

53.01

0.90 (0.81–0.95)

0.06

0.17

6.91

19.57

0.96 (0.92–0.98)

0.04

0.10

4.51

12.49

Extremity-step-ratio LA

0.81 (0.65–0.91)

0.09

0.25

12.02

33.38

0.89 (0.78–0.95)

0.12

0.32

13.70

36.53

0.94 (0.86–0.97)

0.04

0.11

4.94

13.68

Double support L (% of the gait cycle)

0.84 (0.68–0.92)

5.89

16.34

19.36

53.72

0.75 (0.53–0.87)

4.73

13.11

21.27

58.97

0.93 (0.85–0.97)

3.70

10.26

13.80

38.24

Double support R (% of the gait cycle)

0.82 (0.67–0.91)

6.72

18.61

22.11

61.22

0.74 (0.51–0.86)

4.43

12.29

20.14

55.87

0.95 (0.89–0.87)

2.98

8.26

11.04

30.61

Double support MA (% of the gait cycle)

0.84 (0.68–0.92)

5.75

15.93

18.88

52.32

0.75 (0.53–0.87)

4.76

13.21

21.46

59.55

0.94 (0.87–0.97)

3.15

8.74

11.77

32.63

Double support LA (% of the gait cycle)

0.82 (0.66–0.91)

6.88

19.08

22.65

62.83

0.73 (0.51–0.86)

4.42

12.26

20.05

55.61

0.94 (0.88–0.97)

3.55

9.85

13.15

36.45

Step time L (s)

0.82 (0.64–0.91)

0.11

0.31

18.92

53.32

0.73 (0.50–0.86)

0.06

0.16

12.96

34.56

0.93 (0.85–0.97)

0.04

0.12

8.09

22.41

Step time R (s)

0.94 (0.87–0.97)

0.07

0.20

10.84

30.96

0.87 (0.75–0.94)

0.07

0.18

14.46

37.17

0.93 (0.85–0.97)

0.11

0.30

18.78

52.05

Step time MA (s)

0.81 (0.63–0.90)

0.11

0.30

18.37

50.09

0.75 (0.53–0.87)

0.06

0.16

12.72

33.92

0.92 (0.83–0.96)

0.04

0.12

7.96

22.07

Step time LA (s)

0.94 (0.87–0.97)

0.07

0.20

11.14

31.83

0.86 (0.73–0.93)

0.06

0.17

12.62

35.75

0.93 (0.85–0.97)

0.11

0.30

18.93

52.48

Step time symmetry (%)

0.94 (0.87–0.97)

4.40

12.21

35.66

98.84

0.77 (0.75–0.88)

5.27

14.60

57.71

159.97

0.96 (0.92–0.98)

2.67

7.41

27.14

75.22

Step length L (cm)

0.90 (0.79–0.95)

10.17

28.18

18.57

51.46

0.68 (0.42–0.83)

11.35

31.45

17.23

47.75

0.97 (0.93–0.98)

5.35

14.84

8.59

23.82

Step length R (cm)

0.88 (0.76–0.94)

7.51

20.83

12.91

35.80

0.64 (0.37–0.81)

11.00

30.49

16.12

44.69

0.93 (0.84–0.97)

9.12

25.28

14.42

39.96

Step length MA (cm)

0.90 (0.79–0.95)

10.73

29.73

19.44

53.86

0.71 (0.47–0.85)

10.29

28.52

15.45

42.83

0.97 (0.93–0.98)

5.45

15.10

8.71

24.15

Step length LA (cm)

0.87 (0.79–0.95)

7.08

19.63

12.26

33.99

0.61 (0.32–0.79)

11.96

33.16

17.72

49.13

0.93 (0.83–0.97)

9.02

25.00

14.31

39.67

Step length symmetry (%)

0.95 (0.89–0.97)

6.39

17.72

53.08

147.13

0.67 (0.41–0.83)

7.78

21.55

80.71

223.72

0.94 (0.88–0.97)

4.79

13.28

49.77

137.95

  1. 10MWTpref 10 meter walk test at preferred speed, 10MWTmax 10 meter walk test at maximum speed, 6MinWT 6 minute walk tests, ICC intraclass correlation coefficient. 95 % CI 95 % confidence interval, SEM standard error of measurement, SRD smallest real difference, SEM% percentage of the standard error of measurement of the grand mean, SRD% percentage of the smallest real difference of the grand mean, NA not applicable