Flexion-provoked LBP (n=61) Extension-provoked LBP (n=45)
Age (years) 43.9 ± 13.9 42.9 ± 14.0
Duration of symptom (day) 52.0 ± 59.6 41.4 ± 35.4
Height (cm) 168.7 ± 5.4 168.6 ± 6.3
Weight (kg) 66.1 ± 10.0 64.4 ± 8.6
Smoking (/day) 8.1 ± 12.3 10.8 ± 10.9
VAS 40.7 ± 28.3 41.8 ± 28.2
JOA score (LBP; 0-3) 1.2 ± 0.6 1.3 ± 0.6
SF-36 PF 78.7 ± 19.5 77.3 ± 27.1
RP 81.2 ± 22.9 87.2 ± 23.8
BP 48.3 ± 19.6 54.3 ± 23.6
GH 56.4 ± 15.5 59.6 ± 18.8
L1-S1lordotic angle (degree) 34.2 ± 7.3 34.1 ± 7.6
S1 inclination angle (degree) 27.6 ± 6.3 25.3 ± 6.2
VAS¬=Visual Analogue Scale; JOA=Japanese Orthopaedic Association; SF-36; PF=Physical Functioning; RP=Role Physical; BP=Bodily Pain; GH=General Health Values represent means ± S.D No statistically significant differences between groups were shown between any variables at baseline.
Table 1: Demographic and initial assessment data.