Table 1. Comparison of the straight leg raising angle and intervertebral disc height within each group.

	Group	Pre-treatment	Post-treatment
SLRA (degrees)	EG	53.5 ± 10.7	72.0 ± 9.5**
	CG	53.6 ± 10.2	71.7 ± 7.9**
IDH (mm)	EG	14.7 ± 2.3	16.0 ± 1.8**
	CG	15.3 ± 2.1	16.3 ± 2.3**

EG: experimental group; CG: control group.

**p<0.01, paired t-test.