The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 6 Comparison of mean values of right side bending within and between both groups

From: Efficacy of spinal extension exercise program versus muscle energy technique in treatment of chronic mechanical low back pain

	Group A (n = 20)	Group B (n = 20)	t value	P value
Pre-treatment	29.10 ± 6.16	28.40 ± 5.71	0.373	0.711 (NS)
Post-treatment	40.60 ± 7.49	38.85 ± 4.85	0.878	0.387 (NS)
Mean difference	11.50	10.45
% change	39.52	36.80
t value	− 13.373	− 17.281
p value	0.001 (S)	0.001 (S)

NS not significant, S significant

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