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Table 3 Factor loadings, proportion of variance, and factor correlation matrix for the 10 gait parameters included in the factor analysis

From: Development and validation of Comprehensive Gait Assessment using InerTial Sensor score (C-GAITS score) derived from acceleration and angular velocity data at heel and lower trunk among community-dwelling older adults

  Factor 1 Factor 2 Factor 3 Factor 4
(Regularity) (Pace) (Variability) (Smoothness)
Walking speed 0.01 0.79 0.01 0.00
Mean stride time 0.00 0.80 −0.05 0.01
CV of stride time 0.12 −0.06 0.81 −0.06
CV of swing time −0.09 0.02 0.65 0.11
AC-VT 0.77 0.20 0.05 − 0.07
AC-ML 0.83 −0.07 −0.13 0.17
AC-AP 0.83 −0.08 0.11 −0.07
HR-VT 0.01 0.05 0.18 0.51
HR-ML 0.09 −0.08 −0.14 0.69
HR-AP −0.07 0.08 0.14 0.56
% of variance 30.1 11.3 9.9 5.9
Factor correlation matrix
 Factor 2 0.29 1   
 Factor 3 0.53 0.22 1  
 Factor 4 0.23 0.21 0.33 1
  1. The variables presented in boldface signify variables that loaded on each of the four factors above 0.5
  2. CV: coefficient of variation, AC: autocorrelation coefficient, VT: vertical, ML: mediolateral, AP: anteroposterior, HR: harmonic ratio