Table 2.
Anthropometric, strength, and psychological survey measures.
| Survey measures | Healthy (n=24), mean (SE) | Low back pain (n=24), mean (SE) | P value |
| Trunk mass (kg) | 36.7 (1.5) | 35.4 (1.6) | .54 |
| Trunk length (m) | 0.5 (0.0) | 0.4 (0.0) | .15 |
| Vertical trunk force (N) | 476.7 (52.8) | 511.7 (35.4) | .65 |
| Trunk moment (Nm) | 42.3 (4.1) | 45.4 (5.4) | .66 |
| Hip force (N) | 131.0 (8.2) | 138.4 (8.6) | .50 |
| Erector spinae MPFa slope (%/s) | −0.1 (0.0) | −0.1 (0.0) | .32 |
| Gluteus maximus MPF slope (%/s) | −0.3 (0.0) | −0.2 (0.0) | .16 |
| Biceps femoris MPF slope (%/s) | 3.8 (0.8) | 7.6 (1.2) | .38 |
| Depression (0-60)b | 39.3 (2.1) | 37.7 (2.1) | .01 |
| Pain resilience (0-56)b | 7.6 (1.3) | 6.8 (0.9) | .61 |
| Pain catastrophizing (0-52)b | 30.9 (1.2) | 32.0 (1.3) | .59 |
| Kinesiophobia (17-68)b | 38.7 (4.1) | 44.5 (3.2) | .54 |
aMPF: median power frequency.
bRanges for the scales.