| Variables | NSLBP (n = 20) | Control (n = 20) | Statistical and P value |
| Age (yr) | 24.15 ± 2.74 | 25.40 ± 2.72 | t = −1.48; p = 0.156 |
| Weight (kg) | 70.30 ± 9.25 | 68.85 ± 8.88 | t = 0.506; p = 0.616 |
| Height (m) | 1.73 ± 0.05 | 1.72 ± 0.05 | t = 0.761; p = 0.452 |
| BMI (kg/m2) | 23.50 ± 2.77 | 23.33 ± 2.71 | t = 0.190; p = 0.851 |
| Dominant leg (R, right/L, left) | R = 17; L = 3 | R = 19; L = 1 | χ2 = 1.111; p = 0.292 |
| Location of LBP(n) | Two sides:12 Left side:4 Right side:4 | - | - |
| Duration of LBP(n) | 3 - 18 months: 13 18 - 36 months: 4 >36 months: 3 | - | - |
| Frequency of LBP (n) | 0 - 5 t/p6m: 5 6 - 10 t/p6m: 8 >10 t/p6m: 7 | - | - |
| MVAS (0 - 100 mm, prior 6 months) | 62.99 ± 12.42 | - | - |
| AVAS (0 - 100 mm, prior 6 months) | 39.47 ± 14.41 | - | - |
| ODI (0% - 100%) | 12.4 ± 7.69 | - | - |
| FABQ (0 - 96) | 32.15 ± 13.58 | - | - |
| Percentage of the symptom arousal (%) | 55% (11/20) | - | - |