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Table 3 Agreement among temporal and spatial gait parameters (n = 33)

From: Reliability of spatiotemporal and kinetic gait parameters determined by a new instrumented treadmill system

 

Within day (S2 – S3)

Between day (S1 – S2)

Between day (S1 – S3)

 

SEM

Bias

SEM

Bias

SEM

Bias

 

(SEM%)

(± RC95%)

(SEM%)

(± RC95%)

(SEM%)

(± RC95%)

Global

      

Velocity, m/s

0.07

−0.11

0.08

−0.03

0.10

−0.14

 

(6)

(0.21)

(7)

(0.23)

(9)

(0.26)

Cadence, steps/min

3.3

−4.4

3.4

−0.9

4.1

−5.4

 

(3)

(9.0)

(3)

(9.5)

(4)

(11.2)

Spatial

      

Stride length, cm

5.1

−7.3

6.0

−1.9

6.6

−9.2

 

(4)

(14.2)

(5)

(16.7)

(6)

(18.4)

Step width, cm

0.5

0.4

0.9

−0.3

0.9

0.1

 

(6)

(1.4)

(10)

(2.5)

(10)

(2.4)

Step length, left, cm

2.7

−3.6

3.0

−1.1

3.4

−4.7

 

(4)

(7.4)

(5)

(8.4)

(6)

(9.4)

Step length, right, cm

2.6

−3.7

3.0

−0.8

3.3

−4.5

 

(4)

(7.1)

(5)

(8.4)

(6)

(9.1)

Foot rotation, left, º

1

0

1

0

1

0

 

(14)

(3)

(14)

(2)

(14)

(2)

Foot rotation, right, º

1

0

1

0

1

0

 

(11)

(3)

(11)

(2)

(11)

(3)

Temporal

      

Stride time, ms

33

43

37

10

46

53

 

(3)

(91)

(3)

(103)

(4)

(128)

Step time, left, ms

17

22

19

4

24

26

 

(3)

(47)

(3)

(52)

(4)

(67)

Step time, right, ms

16

21

19

7

22

27

 

(3)

(45)

(3)

(51)

(5)

(62)

Stance phase, left, %

1

1

1

0

1

1

 

(2)

(2)

(2)

(2)

(2)

(2)

Stance phase, right, %

1

1

1

0

1

1

 

(2)

(2)

(2)

(2)

(2)

(2)

Swing phase, left, %

1

−1

1

0

1

−1

 

(3)

(2)

(3)

(2)

(3)

(2)

Swing phase, right, %

1

−1

1

0

1

−1

 

(3)

(2)

(3)

(2)

(3)

(2)

Single support, left, %

1

−1

1

0

1

−1

 

(3)

(2)

(3)

(2)

(3)

(2)

Single support, right, %

1

−1

1

0

1

−1

 

(3)

(2)

(3)

(2)

(3)

(2)

Double support, %

1

2

1

1

1

2

 

(4)

(3)

(4)

(4)

(4)

(4)

  1. SEM Standard error of measurement, SEM % Standard error of measurement expressed as percentage of mean, RC 95% 95% repeatability coefficient.