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

Table 10

Effect of general rehabilitation gymnastics on the relative involvement of the longissimus muscle (expressed as the percentage of its maximum voluntary contraction) during selected activities in women with chronic low back pain.

Variable	df1	df2	F	p	Partial eta-squared	%
/MVC	1	39	1.27	0.2667	0.0315	3.152
/MVC	1	39	2.32	0.1355	0.0562	5.621
/MVC	1	39	2.50	0.1221	0.0602	6.019
/MVC	1	39	2.64	0.1120	0.0635	6.348
/MVC	1	39	3.10	0.0859	0.0737	7.373
/MVC	1	39	3.48	0.0698	0.0818	8.182
/MVC	1	39	0.50	0.4849	0.0126	1.259
/MVC	1	39	2.04	0.1610	0.0497	4.975
/MVC	1	39	2.51	0.1213	0.0604	6.044
/MVC	1	39	0.91	0.3455	0.0228	2.285
/MVC	1	39	3.73	0.0606	0.0874	8.739
/MVC	1	39	2.18	0.1481	0.0529	5.288

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; df: degrees of freedom, F: value of the Snedecor F-test, p: probability of a type I error;: statistically significant differences at α≤ 0.05, and : statistically significant differences at α≤0.01.