Dynamics of Changes in Isometric Strength and Muscle Imbalance in the Treatment of Women with Low back Pain

Table 3

Variables of muscular strength and their imbalance in the control group (B).

Variable	Prelim-test X; SD	Prelim-test CV	Test after 2 weeks X; SD	Test after 2 weeks CV	Test after 4 weeks X; SD	Test after 4 weeks CV	Test after 6 weeks X; SD	Test after 6 weeks CV
Strength of flexor muscles in lumbar spine section	50.38 ± 23.24	46.13	67.81 ± 22.95	33.84	74.06 ± 20.38	27.51	73.83 ± 23.74	32.16
Strength of extensor muscles in lumbar spine section	93.59 ± 43.66	46.66	120.06 ± 53.69	44.72	129.42 ± 46.43	35.88	121.68 ± 51.57	42.38
Strength of rotator muscles in left direction of lumbar spine section	20.88 ± 12.99	62.23	28.28 ± 16.2	57.29	31.42 ± 17.28	54.99	33.1 ± 17.99	54.36
Strength of rotator muscles in right direction of lumbar spine section	24.03 ± 14.86	61.84	32.62 ± 18.89	57.92	31.82 ± 16.28	51.17	37.53 ± 20.53	54.71
Strength of flexor muscles in left direction of lumbar spine section	29.26 ± 17.79	60.79	37.52 ± 19.43	51.77	41.78 ± 20.46	48.98	46.8 ± 20.89	44.65
Strength of flexor muscles in right direction of lumbar spine section	30.01 ± 15.17	50.56	36.11 ± 15.49	42.91	39.3 ± 16.12	41.02	38.92 ± 16.44	42.23
Ratio of flexor to extensor muscle strength	0.57 ± 0.23	40.63	0.62 ± 0.18	28.58	0.6 ± 0.15	24.51	0.7 ± 0.32	45.39
Ratio of rotator muscle strength in left direction to rotator muscle strength in right direction	0.88 ± 0.34	38.51	1.01 ± 0.59	58.06	6.8 ± 0.85	395.18	1.28 ± 1.84	143.5
Ratio of flexor muscle strength in left direction to flexor muscle strength in right direction	0.97 ± 0.23	23.24	1.01 ± 0.25	24.79	1.08 ± 0.28	25.94	1.21 ± 0.21	17.02