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Table 2 Laboratory based and free-living gait characteristics.

From: Free-living gait characteristics in ageing and Parkinson’s disease: impact of environment and ambulatory bout length

Domain/gait characteristic

BWM Lab

BWM free-living

CL (n = 50)

PD (n = 47)

p

CL (n = 50)

PD (n = 47)

p

Pace

      

Step Velocity (m/s)

1.393 ± 0.207

1.254 ± 0.211

0.002

1.097 (0.48)

1.017 (0.426)

<0.001

Step Length (m)

0.726 ± 0.095

0.667 ± 0.073

0.001

0.601 (0.183)

0.578 (0.243)

<0.001

Swing Time Var (s)

0.018 (0.113)

0.025 (0.103)

0.051

0.147 (0.125)

0.151 (0.134)

0.014

Variability (SD)

      

Step Velocity Var (m/s)

0.073 (0.301)

0.081 (0.223)

0.253

0.383 (0.494)

0.362 (0.221)

0.070

Step Length Var (m)

0.033 (0.096)

0.039 (0.094)

0.050

0.151 (0.079)

0.152 (0.091)

0.660

Step Time Var (s)

0.019 (0.109)

0.028 (0.085)

0.037

0.175 (0.156)

0.181 (0.179)

0.037

Stance Time Var (s)

0.022 (0.109)

0.029 (0.092)

0.088

0.188 (0.161)

0.196 (0.249)

0.034

Rhythm

      

Step Time (s)

0.525 ± 0.047

0.539 ± 0.058

0.206

0.593 (0.144)

0.605 (0.318)

0.017

Swing Time (s)

0.371 ± 0.040

0.388 ± 0.055

0.092

0.449 (0.113)

0.458 (0.252)

0.008

Stance Time (s)

0.679 ± 0.061

0.689 ± 0.069

0.450

0.741 (0.166)

0.756 (0.434)

0.035

Asymmetry

      

Step Time Asy (s)

0.007 (0.140)

0.009 (0.057)

0.268

0.093 (0.086)

0.098 (0.142)

0.116

Swing Time Asy (s)

0.010 (0.126)

0.007 (0.055)

0.473

0.084 (0.064)

0.091 (0.133)

0.013

Stance Time Asy (s)

0.007 (0.140)

0.006 (0.035)

0.665

0.094 (0.086)

0.100 (0.131)

0.097

Postural Control

      

Step Length Asy (m)

0.007 (0.060)

0.009 (0.086)

0.845

0.081 (0.043)

0.088 (0.070)

0.004

  1. Var Variability, Asy Asymmetry
  2. Values of gait characteristics for controls (CL) and people with Parkinson’s disease (PD) for laboratory based data (BWM Lab) and averaged free-living data (BWM free-living), values of normal gait characteristics are presented as mean ± standard deviation (SD), non-normal as median (range). Results of the t-test or the Mann–Whitney U test (for non-normal gait characteristics) analysis between people with PD and CL are reported, in bold are shown p values < 0.01