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Effects of gait speed on spatio-temporal characteristics of gait in PD and controls on a motorized treadmill |
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| 80% of CWS (P value*) |
90% of CWS (P value*) |
CWS |
110% of CWS (P value*) |
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| a) PD Subjects (n = 36) |
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| Average gait speed (m/sec) |
0.84 ± 0.11 (<0.001) |
0.95 ± 0.13 (<0.001) |
1.05 ± 0.14 |
1.16 ± 0.16 (<0.001) |
| Average Stride Length (m) |
1.05 ± 0.16 (<0.001) |
1.13 ± 0.15 (<0.001) |
1.20 ± 0.15 |
1.26 ± 0.14 (<0.001) |
| Average Stride Time (sec) |
1.26 ± 0.15 (<0.001) |
1.20 ± 0.13 (<0.001) |
1.14 ± 0.11 |
1.09 ± 0.10 (0.020) |
| Average Swing Time (%) |
32.39 ± 3.06 (<0.001) |
33.02 ± 2.78 (0.051) |
33.62 ± 2.48 |
33.89 ± 2.64 (0.032) |
| Stride Time Variability (%) |
2.20 ± 1.55 (0.002) |
2.01 ± 1.24 (0.062) |
1.76 ± 0.57 |
1.61 ± 0.63 (0.826) |
| Swing Time Variability (%) |
2.66 ± 1.57 (0.478) |
2.55 ± 1.15 (0.839) |
2.51 ± 0.98 |
2.48 ± 1.32 (0.855) |
| b) Control Subjects (n = 30) |
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| Average gait speed (m/sec) |
0.97 ± 0.15 (<0.001) |
1.09 ± 0.17 (<0.001) |
1.21 ± 0.19 |
1.33 ± 0.21 (<0.001) |
| Average Stride Length (m) |
1.19 ± 0.15 (<0.001) |
1.25 ± 0.15 (<0.001) |
1.33 ± 0.14 |
1.39 ± 0.14 (<0.001) |
| Average Stride Time (sec) |
1.24 ± 0.15 (<0.001) |
1.17 ± 0.14 (0.001) |
1.11 ± 0.11 |
1.06 ± 0.10 (0.001) |
| Average Swing Time (%) |
34.74 ± 1.65 (0.002) |
35.12 ± 1.47 (0.074) |
35.62 ± 1.45 |
36.25 ± 1.34 (0.026) |
| Stride Time Variability (%) |
1.72 ± 0.74 (0.644) |
1.56 ± 0.59 (0.597) |
1.64 ± 0.80 |
1.44 ± 0.67 (0.178) |
| Swing Time Variability (%) |
2.12 ± 0.92 (0.758) |
1.99 ± 0.71 (0.424) |
2.18 ± 1.22 |
2.00 ± 1.10 (0.459) |
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CWS: Comfortable walking speed as determined on level ground when walking with a walker. *P values determined using a repeated measures approach (see Methods) based on comparisons between comfortable walking to slower/faster walking in PD and controls. | ||||
Frenkel-Toledo et al. Journal of NeuroEngineering and Rehabilitation 2005 2:23 doi:10.1186/1743-0003-2-23 |
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