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.
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