The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 5 Comparison of mean values of extension of lumber spine 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	39.35 ± 15.69	33.70 ± 10.72	1.330	0.191 (NS)
Post-treatment	51.00 ± 14.76	44.95 ± 12.53	1.397	0.170 (NS)
Mean difference	11.65	11.25
% change	33.38	29.61
t value	− 11.766	− 6.999
p value	0.001 (S)	0.001 (S)

NS not significant, S significant

Back to article page