Table 3.

Models of Backward Walking Gait Speed Poststroke^a

DV: BW Gait Speed
Model Statistics				Predictor Statistics
Blocks	R 2	F Change	P	Predictors	β	95% CI for B	P
Block 1
FWS	0.26	15.33	<.001	FW gait speedc	0.51	0.13 to 0.39	<.001
Block 2
mFES (+FWS)	0.30	2.02	.16	FW gait speedd	0.37	0.02 to 0.035	.03
				mFES	0.23	−0.01 to 0.04	.16
Block 3d
mFES × FWS + (FWS, mFES)	0.37	4.97	.03	FWSd	0.34	0.01 to 0.33	.04
				mFES	0.16	−0.01 to 0.03	.33
				mFES × FWSd	−0.29	−0.13 to −0.01)	.03

^a β = standardized regression coefficients; 95% CI for B = 95% CI for unstandardized regression coefficients; BWS = Backward Walking Speed; DV = dependent variable; FWS = Forward Walking Speed; mFES = modified Falls-Efficacy Scale.

^b P less than .001.

^c P less than .05.

^d Block 3 explains significantly more variance than block 2 (P = .03).