Skip to main content

Advertisement

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