Effectiveness of Combined General Rehabilitation Gymnastics and Muscle Energy Techniques in Older Women with Chronic Low Back Pain

Table 7

Results of multiple regression analysis for as a dependent variable and four independent variables .

Independent variables	Exercising group, R^2=0.509		Non-exercising controls, R^2=0.413
	b	p	b	p
	0.311	0.378	0.035	0.923
	0.335	0.203	0.465	0.242
	0.212	0.368	0.226	0.287
	0.001	0.999	0.085	0.764

R²: coefficient of determination, b: standardized regression coefficient, p: probability of a type I error.
: bioelectrical activity of the longissimus muscle on both sides during putting down a rehabilitation roller.
: bioelectrical activity of the longissimus muscle on both sides during lifting up a rehabilitation roller.
: bioelectrical activity of the longissimus muscle on both sides during sitting down on a chair.
: bioelectrical activity of the longissimus muscle on both sides during getting up from a chair.