| Walking on ground | Walking on ground with a walker | ||
---|---|---|---|---|
 | Comfortable Walking Speed (CWS) | Slow Walking Speed (P value*) | Comfortable Walking Speed | Slow Walking Speed (P value*) |
a) PD subjects (n = 36) | ||||
Average gait speed (m/sec) | 1.12 ± 0.15 | 0.93 ± 0.14 (<0.001) | 1.05 ± 0.14 | 0.89 ± 0.12 (<0.001) |
Average Stride Length (m) | 1.25 ± 0.16 | 1.16 ± 0.14 (<0.001) | 1.20 ± 0.14 | 1.12 ± 0.13 (<0.001) |
Average Stride Time (sec) | 1.12 ± 0.07 | 1.26 ± 0.11 (<0.001) | 1.15 ± 0.09 | 1.27 ± 0.12 (<0.001) |
Average Swing Time (%) | 34.45 ± 2.60 | 33.78 ± 2.71 (0.006) | 34.21 ± 2.85 | 33.78 ± 2.75 (0.054) |
Stride Time Variability (%) | 2.24 ± 0.74 | 3.03 ± 1.05 (<0.001) | 2.40 ± 0.61 | 2.92 ± 1.31 (<0.001) |
Swing Time Variability (%) | 3.27 ± 1.25 | 3.57 ± 1.30 (0.164) | 3.26 ± 1.35 | 3.41 ± 1.95 (0.456) |
b) Healthy Controls (n = 30) | ||||
Average gait speed (m/sec) | 1.24 ± 0.18 | 1.05 ± 0.17 (<0.001) | 1.21 ± 0.19 | 1.01 ± 0.19 (<0.001) |
Average Stride Length (m) | 1.33 ± 0.11 | 1.24 ± 0.10 (<0.001) | 1.33 ± 0.11 | 1.23 ± 0.12 (<0.001) |
Average Stride Time (sec) | 1.08 ± 0.09 | 1.20 ± 0.13 (<0.001) | 1.10 ± 0.10 | 1.25 ± 0.16 (<0.001) |
Average Swing Time (%) | 35.27 ± 1.97 | 34.79 ± 1.66 (0.093) | 35.37 ± 2.18 | 34.91 ± 1.65 (0.113) |
Stride Time Variability (%) | 1.94 ± 0.36 | 2.38 ± 0.76 (0.003) | 1.87 ± 0.36 | 2.65 ± 0.77 (<0.001) |
Swing Time Variability (%) | 2.80 ± 1.99 | 2.93 ± 1.36 (0.565) | 2.63 ± 1.70 | 2.61 ± 1.47 (0.952) |