Table 3. Correlations between external adduction moment and medial contact force the early stance phase considering the co-variates gait velocity and static frontal plane (varus-valgus) limb alignment.

model	R2	adjusted R2	change in R2	significance of F change	model significance
velocity	0.49	0.42	-	-	0.04
i) velocity, EAM	0.69	0.58	0.20	0.10	0.03
alignment	0.60	0,54	-	-	0.01
ii) alignment, EAM	0.61	0.49	0.01	0.64	0.06
velocity, alignment	0.76	0.68	-	-	0.01
iii) velocity, alignment, EAM	0.77	0.63	0.01	0.72	0.049