Table 3.

Model summary parameters of hierarchical linear regression analyses explaining physical activity level (UCLA score) with sex, gait measures, and fear of movement (TSK) as independent variables entered into each model in successive steps (n = 40).

Dependent variable	Step	Independent variables	R2	Adjusted R2	ΔR2	ΔF	Sig. of ΔF	Sig. of Model
UCLA score T		Model 1
	1	Sex	0.140	0.117	0.140	6.19	0.017	0.017
	2	+ Peak ADFM + GS	0.416	0.368	0.276	8.52	<0.001	<0.001
	3	+ TSK	0.605	0.560	0.189	16.72	<0.001	<0.001
		Model 2
	1	Sex	-	-	-	-	-	-
	2	+ Peak HFM + GS	0.407	0.357	0.267	8.10	0.001	<0.001
	3	+ TSK	0.596	0.550	0.190	16.43	<0.001	<0.001

Note.

^TLog-transformed UCLA score.

Abbreviations: ADFM, ankle dorsiflexion moment; GS, self-selected gait speed; HFM, hip flexion moment; TSK, Tampa Scale for Kinesiophobia.