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Table 2 Effects of gait speed on spatio-temporal characteristics of gait in PD patients and controls on level ground

From: Effect of gait speed on gait rhythmicity in Parkinson's disease: variability of stride time and swing time respond differently

  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)
  1. *P values determined using a repeated measures approach (see Methods) based on comparisons between CWS walking to slower walking in PD and controls.