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

Table 9

Mean values of bioelectrical activity to maximum voluntary contraction (MVC) ratios for the longissimus muscle in exercising women (E) and nonexercising controls (C) during various tasks.

Ratio	/MVC	/MVC	/MVC	/MVC	/MVC	/MVC
E	51.59	49.55	50.4	48.12	46.54	47.18
C	58.59	62.2	60.14	57.24	59.4	57.93
Ratio	/MVC	/MVC	/MVC	/MVC	/MVC	/MVC
E	40.96	32.64	36.62	59.24	50.93	54.9
C	45.71	48.00	46.63	69.57	64.45	65.97

E: exercising group; C: controls; MVC: maximum bioelectrical activity of the longissimus muscle; Pd: bioelectrical activity of the longissimus muscle during putting down a rehabilitation roller; Lu: bioelectrical activity of the longissimus muscle during lifting up a rehabilitation roller; Sd: bioelectrical activity of the longissimus muscle during sitting down on a chair; Gu: bioelectrical activity of the longissimus muscle during getting up from a chair.