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