Table 7.

Factor Analysis of the Geometric Parameters

Parameter		Proximal			Middle			Distal
		F1	F2	h2*	F1	F2	h2	F1	F2	h2
	LMeCs	−0.567	0.708	0.824	0.938	−0.145	0.902	0.952	−0.034	0.908
	LMaCs	−0.160	0.952	0.931	0.958	0.074	0.924	0.953	0.101	0.919
	LSDCs	0.535	0.765	0.872	0.889	0.193	0.828	0.965	0.031	0.933
	LMeTs	0.899	−0.166	0.836	−0.070	0.947	0.902	−0.134	0.875	0.784
LAD	LMaTs	0.966	0.093	0.943	0.029	0.981	0.964	0.248	0.931	0.928
	LSDTs	0.980	−0.047	0.962	0.007	0.992	0.984	0.186	0.955	0.947
	RTTSs	−0.002	0.844	0.713	0.781	−0.143	0.630	0.829	0.313	0.785
	Proportion of variance	47.6%	39.2%	86.9%	45.8%	41.8%	87.6%	50.7%	37.9%	88.6%
	LMeCs	0.858	−0.255	0.801	0.845	−0.385	0.862	−0.326	0.857	0.840
	LMaCs	0.964	−0.063	0.933	0.965	0.024	0.932	0.094	0.892	0.805
	LSDCs	0.898	0.031	0.808	0.893	0.211	0.843	0.125	0.897	0.820
	LMeTs	−0.335	0.806	0.762	−0.146	0.931	0.888	0.932	−0.181	0.902
RCA	LMaTs	0.029	0.969	0.940	−0.007	0.978	0.957	0.955	0.018	0.912
	LSDTs	−0.040	0.980	0.962	−0.059	0.984	0.972	0.984	−0.047	0.971
	RTTSs	0.895	−0.121	0.816	0.796	−0.237	0.689	−0.216	0.674	0.501
	Proportion of variance	48.4%	37.6%	86.0%	44.3%	43.5%	87.8%	41.8%	40.3%	82.2%

^*h² – communality, which is the sum of squared loadings for a parameter across factors. Dominant factors are marked in bold face. Subscript s denotes the parameter after standardization.