Table 3. Comparisons of the differences in the range of motion and endurance times within each group.

	Pre (a)	Post (b)	After 4 weeks (c)	Post-hoc
Cervical flexion (°)
Experimental	50.8±10.8	60.4±7.2*	60.7±5.9*	a < b, c
Control	52.8±13.2	62.3±10.2	56.5±12.7
Cervical extension (°)
Experimental	62.5±4.5	74.1±9.8*	75.2±10.9*	a < b, c
Control	59.5±11.0	72.0±9.7*	66.9±8.78	a < b
Left cervical rotation (°)
Experimental	60.5±10.3	74.4±8.5*	74.9±8.7*	a < b, c
Control	61.8±8.9	77.2±9.5*	69.5±11.4	a < b
Right cervical rotation (°)
Experimental	60.8±8.3	72.1±8.1*	72.3±8.8*	a < b, c
Control	65.3±6.2	74.3±5.6*	69.2±6.9	a < b
Craniovertebral angle (°)
Experimental	48.9±7.2	53.5±6.3	54.6±5.3
Control	47.0±7.1	50.7±5.2	51.2±5.4
Muscular endurance of deep cervical flexors (sec)
Experimental	16.9±3.8	29.6±6.0*	34.7±14.3*	a < b, c
Control	20.7±10.9	25.1±12.6	25.7±13.6

Mean ± SD. *p < 0.05