Mean ± SD   P P (pairwise comparisons)
  BL wk 4 wk 6 BL - wk4 BL - wk6 wk4 –wk6
VAS (0-10 cm)
         NCSR group
CPT group 		5 ± 1.3
4.7 ± 1.9		 1.5 ± 1.7
4.1 ± 1.5 		0.7 ± 1.2
3 ± 1.9		 0.00**
0.001**		 0.00**
0.565		 0.00**
0.013*		 0.061
0.007**
ODI (0-100%)
         NCSR group
CPT group		 23.1 ± 10.5
27.8 ± 8.7		 13.8 ± 8.6
23.7 ± 10.5		 10.5 ± 7.6
20.5 ± 12		 0.00**
0.00**		 0.00**
0.009*		 0.00**
0.00**		 0.002**
0.216
RSLR (°)              
         NCSR group
CPT group		 71.4 ± 15
64 ± 19.6		 79.9 ± 14.7
74 ± 16.5		 81.4 ± 11.9
78.9 ± 16		 0.00**
0.00**		 0.002**
0.011*		 0.005**
0.001**		 1.00
0.665
LSLR (°)              
         NCSR group
CPT group		 72.8 ± 17.4
64.6 ± 17.8		 79.8 ± 14
75.1 ± 17.4		 83.1 ± 12.9
80.6 ± 16.9		 0.00**
0.00**		 0.006**
0.005**		 0.004**
0.00**		 0.006**
0.420
Trunk flexion (°)              
         NCSR group
CPT group		 105.7 ± 18.4
103.7 ± 20.2		 113.4 ± 14.4
110.6 ± 18.2		 118.5 ± 12.5
115.2 ± 16.2		 0.00**
0.00**		 0.003**
0.004**		 0.002**
0.00**		 0.012*
0.790
Trunk extension (°)
         NCSR group
CPT group		 30.9 ± 11.9
28.9 ± 9.8		 36.8 ± 11.1
34.3 ± 14.1		 42.9 ± 13
36.7 ± 15.1		 0.00**
0.00**		 0.018*
0.077		 0.001**
0.001**		 0.006**
0.020*
Ito test (s)
         NCSR group
CPT group		 68.1 ± 50.4
39 ± 37.6		 96.3 ± 69.8
47.6 ± 36.4		 120 ± 73.2
62.1 ± 48		 0.00**
0.003**		 0.002**
0.178		 0.00**
0.035*		 0.002**
0.015*
Shirado test (s)
         NCSR group
CPT group		 21.9 ± 14.9
19 ± 15.8		 38.9 ± 25.3
26.8 ± 21.7		 54.7 ± 30.2
33.6 ± 24.6		 0.00**
0.00**		 0.00**
0.007**		 0.00**
0.002**		 0.00**
0.019*
PILE (kg)
         NCSR group
CPT group		 4.2 ± 1.8
4.2 ± 2.2		 7.9 ± 2.4
5.4 ± 2.7		 9.8 ± 2.3
6.9 ± 3.7		 0.00**
0.00**		 0.00**
0.020*		 0.00**
0.001**		 0.00**
0.004**
Abbreviations: BL: Baseline; CPT: Conventional Physiotherapy; LSLR: Left Straight Leg Raising; NCSR: Non-pain-Contingent Spine Rehabilitation; ODI: Oswestry Disability Index; PILE: Progressive Isoinertial Lifting Evaluation; RSLR: Right Straight Leg Raising; SD: Standard Deviation; VAS: Visual Analogue Scale; wk: Week.
*P is significant at the < 0.05 level (2-tailed).
**P is significant at the < 0.01 level (2-tailed).
Table 2: Within-group comparison between baseline, week 4, and week 6 measurements in the spine rehabilitation and conventional physiotherapy groups.