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Effects of gait speed on spatio-temporal characteristics of gait in PD patients and controls on level ground |
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| Walking on ground |
Walking on ground with a walker |
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| Comfortable Walking Speed (CWS) |
Slow Walking Speed (P value*) |
Comfortable Walking Speed |
Slow Walking Speed (P value*) |
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| a) PD subjects (n = 36) |
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| 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) |
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| 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) |
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*P values determined using a repeated measures approach (see Methods) based on comparisons between CWS walking to slower 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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