TABLE 2.
Differences in gait parameters between PD with and without fatigue in supervised and unsupervised conditions.
| Gait parameters | PD-N | PD-F | p-value c |
| Supervised assessment | |||
| Straight walk self-selected pace | |||
| Steps (N) | 113 (88–131) | 108 (96–119) | 0.273c |
| Step time (s) | 0.53 (0.45–0.67) | 0.55 (0.49–0.70) | 0.116c |
| Step time variability (s) | 0.04 (0.02–0.10) | 0.05 (0.03–0.12) | 0.264c |
| Step time asymmetry | 0.02 (0.00–0.04) | 0.03 (0.00–0.08) | 0.125c |
| Straight walk fast pace | |||
| Steps (N) | 118 (102–159) | 123 (110–159) | 0.320c |
| Step time (s) | 0.46 (0.38–0.57) | 0.49 (0.38–0.54) | 0.108c |
| Step time variability (s) | 0.04 (0.02–0.09) | 0.06 (0.02–0.09) | 0.140c |
| Step time asymmetry | 0.01 (0.00–0.04) | 0.02 (0.00–0.05) | 0.207c |
| Unsupervised assessment | |||
| Daily Bout | |||
| Steps (N) | 31 (11.1–83.5) | 30 (14.7–74.3) | 0.125d |
| Step time (s) | 0.74 (0.66–0.78) | 0.78 (0.69–0.90) | 0.007d |
| Step time variability (s) | 0.24 (0.17–0.39) | 0.29 (0.23–0.37) | 0.004d |
| Step time asymmetry | 0.11 (0.07–0.21) | 0.13 (0.09–0.20) | 0.004d |
| Gait bouts < 20 steps | |||
| Steps (N) | 14 (8.5–16.2) | 15 (8.0–16.0) | 0.269d |
| Step time (s) | 0.78 (0.72–0.87) | 0.83 (0.70 ± 0.99) | 0.017d |
| Step time variability (s) | 0.31 (0.18–0.40) | 0.34 (0.28–0.43) | 0.017d |
| Step time asymmetry | 0.16 (0.09–0.23) | 0.17 (0.11–0.24) | 0.032d |
| Gait bouts ≥ 20 steps | |||
| Steps (N) | 52 (32–167) | 50 (30–153) | 0.250d |
| Step time (s) | 0.67 (0.61–0.73) | 0.69 (0.65–0.80) | 0.013d |
| Step time variability (s) | 0.19 (0.15–0.34) | 0.23 (0.18–0.30) | 0.002d |
| Step time asymmetry | 0.06 (0.04–0.08) | 0.07 (0.05–0.09) | 0.010d |
| Longest bout | |||
| Steps (N) | 892 (58–3,089) | 500 (56–2,476) | 0.175d |
| Step time (s) | 0.55 (0.46–0.69) | 0.59 (0.53–0.88) | 0.009d |
| Step time variability (s) | 0.05 (0.02–0.21) | 0.08 (0.05–0.36) | 0.029d |
| Step time asymmetry | 0.01 (0.00–0.03) | 0.02 (0.00–0.06) | 0.005d |
Values have been indicated as mean (25th–75th percentile).
cComparison between PD-N and PD-F have been performed using non-parametric multivariate analyses adjusted for the effect of age, sex, height, disease duration, and number of steps.
dComparison between PD-N and PD-F have been performed using non-parametric multivariate analyses adjusted for the effect of age, sex, height, disease duration, and number of steps. Bold values represent p < 0.05.