Table 1.
Baseline characteristics of the sample by group.
| Total Sample (n = 50) | LBP Group (n = 25) | Pain-Free Group (n = 25) | |
|---|---|---|---|
| Socio-demographic characteristics | |||
| Gender (n, H/M) | 50/0 | 25/0 | 25/0 |
| Age (years) | 37.1 ± 6.6 | 38.3 ± 7.9 | 35.9 ± 4.8 |
| Height (meters) | 1.75 ± 0.07 | 1.76 ± 0.08 | 1.75 ± 0.05 |
| Weight (kg) * | 75.9 ± 11.9 | 79.2 ± 14.4 | 72.6 ± 7.8 |
| BMI (kg/m2) * | 24.4 ± 2.5 | 25.2 ± 2.8 | 23.6 ± 1.8 |
| Clinical Characteristics | |||
| NPRS (0–100) | 3.8 ± 3.8 | N/A | |
| LBP Episodes (n) a | 2.0 ± 2.11 | N/A | |
| ODI (0–100) | 6.3 ± 8.7 | N/A | |
| Physical Activity | |||
| Vigorous Activity—Sports (METS) † | 1826.4 ± 486.0 | 1320.0 ± 382.2 | 2332.8 ± 385.1 |
| Moderate Activity—Sports (METS) | 609.6 ± 161.5 | 751.2 ± 192.9 | 468.0 ± 173.2 |
| +10 Walking (METS) | 416.4 ± 112.7 | 393.6 ± 104.7 | 439.2 ± 109.3 |
| Sitting time (hours/day) † | 9.14 ± 3.70 | 11.4 ± 2.2 | 6.8 ± 3.4 |
Values are expressed as mean ± SD. a Number of LBP episodes within the last year. * Significant differences between case and control groups (p < 0.05). † Significant differences between case and control groups (p < 0.001).