Daily physical activity and its contribution to the health-related quality of life of ambulatory individuals with chronic stroke

Table 3 Linear regression models for determining the contribution of PA on the physical composite score of the SF-36 after controlling for lower extremity impairment

		R ²	R ² change	Unstandardized ß (standard error)	Standardized ß	P
Model 1	Lower extremity impairment	0.134	0.134	1.53 (.632)	0.367	0.020
	Lower extremity impairment	0.134	0.134	1.33 (.598)	0.367	0.020
	PASIPD	0.260	0.126	0.457 (.182)	0.358	0.017
	Lower extremity impairment	0.134	0.134	1.53 (.632)	0.367	0.020
Model 2	Lower extremity impairment	0.130	0.130	1.2 (.626)	0.301	0.024
	Accelerometer activity kilocounts	0.234	0.104	6.41 (0.00)	0.337	0.034

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