Skip to main content

Table 2 Measurements of each gait parameter

From: Principal component analysis for ataxic gait using a triaxial accelerometer

Parameter

Patients

Controls

t-value

p-value

Mean ± SD

ICC (1, 1) (95% CI)

Mean ± SD

ICC (1,1) (95% CI)

Velocity (m/s)

0.96 ± 0.27 a

0.96 (0.95–0.97)

1.34 ± 0.13

0.87 (0.82–0.91)

9.922

<0.001

Cadence (step/min)

112.1 ± 11.5 a

0.68 (0.60–0.77)

116.9 ± 7.7

0.90 (0.86–0.93)

2.545

0.012

Step length (m)

0.51 ± 0.12 a

0.91 (0.88–0.94)

0.69 ± 0.06

0.87 (0.83–0.91)

10.128

<0.001

Step regularity in AP

0.51 ± 0.14 a

0.71 (0.62–0.79)

0.70 ± 0.09

0.59 (0.49–0.69)

9.098

<0.001

Step regularity in VT

0.48 ± 0.15 a

0.74 (0.66–0.81)

0.70 ± 0.09

0.61 (0.52–0.71)

9.241

<0.001

Step symmetry in AP

0.78 ± 0.08

0.15 (0.09–0.24)

0.78 ± 0.05

0.13 (0.08–0.22)

0.514

0.609

Step symmetry in VT

0.78 ± 0.07

0.12 (0.07–0.20)

0.81 ± 0.06

0.18 (0.02–0.28)

1.873

0.064

RMS in AP (m/s2)

1.74 ± 0.57 a

0.87 (0.82–0.91)

2.15 ± 0.34

0.83 (0.77–0.88)

4.442

<0.001

RMS in ML (m/s2)

1.81 ± 0.61 a

0.90 (0.86–0.93)

1.67 ± 0.41

0.89 (0.85–0.93)

−2.088

0.039

RMS in VT (m/s2)

2.21 ± 0.81 a

0.91 (0.88–0.94)

2.71 ± 0.55

0.88 (0.83–0.92)

3.656

<0.001

  1. Abbreviations: AP anterior-posterior, CI confidence interval, ICC intra-class correlation coefficient, ML medio-lateral, RMS root mean square, SD standard deviation, VT vertical
  2. a Significantly different between the patients and controls