	N	MEAN	SD	t value	p value
Pre VAS	20	5.05	0.99	11.85	0.0001
Post VAS	20	2.25	1.06	11.85	0.0001
Pre ODI	20	27.3	6.37	6.04	0.0001
Post ODI	20	23.1	4.52	6.04	0.0001