Table 2 Gait parameters in healthy controls and patients with INPH.

From: Quantitative Gait Analysis and Cerebrospinal Fluid Tap Test for Idiopathic Normal-pressure Hydrocephalus

  Healthy controls Patients with INPH
Before CSF tap 24 hours after tap
Velocity, cm/s 99.12 ± 10.37 55.12 ± 4.81c 67.84 ± 5.01e
Cadence, steps/min 110.16 ± 8.81 105.33 ± 3.56 112.99 ± 3.40d
Stride length, cm 109.12 ± 4.74 62.76 ± 5.14c 72.38 ± 5.11d
Step width, cm 7.99 ± 0.75 13.57 ± 0.57c 12.90 ± 0.60d
Toe in/out, ° 8.69 ± 1.61 15.28 ± 1.65b 14.57 ± 1.51
Stride time, s 1.09 ± 0.04 1.17 ± 0.04 1.09 ± 0.04d
Stance phase, % 62.79 ± 0.69 67.81 ± 0.59c 67.28 ± 0.93
Swing phase, % 37.25 ± 0.69 32.19 ± 0.59c 32.71 ± 0.93
Double-limb support phase, % 25.61 ± 1.56 36.49 ± 1.34c 34.81 ± 1.90
CV of stride time, % 4.34 ± 2.04 10.47 ± 2.27a 6.05 ± 0.79d
CV of stride length, % 5.10 ± 1.78 14.35 ± 1.98c 9.44 ± 0.82e
  1. Values denote mean ± standard deviation. INPH = idiopathic normal-pressure hydrocephalus; CSF = cerebrospinal fluid; CV = coefficient of variability.
  2. aMean differs from healthy controls, p < 0.05.
  3. bMean differs from healthy controls, p < 0.01.
  4. cMean differs from healthy controls, p < 0.001.
  5. dMean differs from baseline, p < 0.05.
  6. eMean differs from baseline, p < 0.01.