Table 3.
Subject characteristics: men vs. nulligravid women.
| Men (n = 16) | Nulligravid women (n = 19) | |
|---|---|---|
| Age (years) | 24.1 ± 6.6 | 24.4 ± 4.9 |
| Height (cm) | 176.8 ± 7.4 | 167.1 ± 9.1∗ |
| Weight (kg) | 72.7 ± 8.5 | 65.6 ± 12.2 |
| BMI (kg/m2) | 23.0 ± 2.3 | 23.3 ± 3.7 |
| McGill pain intensity (cm) | 0.04 ± 0.2 | 0.4 ± 1.0 |
| Oswestry (%) | 2.1 ± 3.2 | 0.9 ± 2.0 |
| Fear Avoidance Beliefs Questionnaire (AU) | 1.9 ± 5.6 | 0.4 ± 0.8 |
| Pain Catastrophizing Scale (AU) | 8.1 ± 8.4 | 8.9 ± 7.7 |
| Rectus abdominis muscle thickness (cm) | 1.3 ± 0.4 (n = 13) | 1.0 ± 0.2∗ (n = 15) |
| Trunk flexor MVC (Nm) | 56.4 ± 23.2 | 50.4 ± 22.5 |
| Trunk flexor time to task failure (s) | 755.3 ± 458.4 | 647.2 ± 339.5 |
| Self-reported physical activity over the previous 12 months (MET∗hr∗week-1) | 59.2 ± 38.6 (n = 15) | 43.2 ± 27.2 (n = 17) |
| Average minutes/day of moderate physical activity | 42.0 ± 28.5 (n = 5) | 37.8 ± 22.7 (n = 14) |
∗Indicates p < 0.05. cm, centimeters; kg, kilograms; m, meter; Nm, Newton meters; s, seconds; MET, Metabolic equivalents; hr, hour; AU, arbitrary units.