Table 6.

7MWT factor model: Factor loadings of the sensor-based measures, corresponding domains and Cumulative Variance (CV) (Varimax Rotation).

Domains	Walking Impairment	Gait Irregularity	Gait Jerkiness	ML Gait Instability	Gait Variability
Factors	7MW1	7MW2	7MW3	7MW4	7MW5
Range A V	−0.916	−0.030	−0.116	0.035	−0.050
RMS A V	−0.909	−0.279	−0.106	0.046	−0.109
Range A AP	−0.882	−0.046	−0.157	0.113	−0.102
RMS A AP	−0.866	−0.183	−0.119	0.181	−0.140
Range A ML	−0.735	0.227	−0.113	0.521	−0.008
RMS A ML	−0.727	0.070	0.044	0.678	−0.012
Cadence	0.708	0.253	−0.654	0.005	0.047
Total duration	0.663	0.394	0.017	0.014	0.237
Stride Reg V	−0.163	−0.844	−0.007	−0.120	−0.158
Stride Reg AP	0.087	−0.823	−0.008	0.130	−0.174
Step Reg V	−0.279	−0.737	−0.001	−0.145	−0.223
Step Reg AP	−0.151	−0.658	−0.063	0.072	−0.215
Stride Reg ML	−0.026	−0.633	0.176	0.445	0.013
NJS V	−0.125	0.050	−0.826	−0.007	0.147
NJS AP	−0.404	−0.176	−0.662	0.078	−0.116
NJS ML	−0.179	0.064	−0.389	0.669	−0.012
Step Reg ML	−0.065	−0.387	0.204	0.557	−0.003
PCI	0.120	0.269	−0.007	0.001	0.893
SD Cadence	0.234	0.390	−0.123	−0.017	0.836
CV%	30	48	58	68	77
Relevant factor loadings (absolute value > 0.5) are bolded

ACRONYMS: A: Accelerometer; AP: Antero-Posterior; CV: Cumulative Variance; ML: Medio-Lateral; NJS: Normalized Jerk Score; PCI: Phase Coordination Index; Reg: Regularity; RMS: Root Mean Square; SD: Standard Deviation; V: Vertical.