Table 1.

The segment ROM in flexion, extension, lateral bending and axial rotation

Group	Segment	Flexion	Extension	Left lateral bending	Right lateral bending	Left axial rotation	Right axial rotation
Group 1	C4-C5	6.59	4.7	4.7	5.43	6.1	6.32
	C5-C6	5.44	4.66	4.68	4.13	5.64	7.16
	C6-C7	6.01	5.53	5.43	4.46	5.32	6.22
Group 2	C4-C5	6.65	4.51	5.16	5.53	6.58	8.01
	C5-C6	5.8	5.22	5.25	5.09	5.83	7.01
	C6-C7	5.91	5.07	5.16	4.33	5.38	6.06
Group 3	C4-C5	6.66	4.52	5.18	5.53	6.59	8.01
	C5-C6	6.02	5.44	5.46	5.32	6.04	7.26
	C6-C7	6.12	5.28	5.36	4.47	5.59	6.27
Group 4	C4-C5	6.31	4.9	5.54	5.76	7.7	8.52
	C5-C6	1.52*	1.21*	1.72*	0.99*	1.29*	1.76*
	C6-C7	6.06	4.49	5.51	4.67	6.25	7.17

Compare with other groups;

^*P<0.05.