Table1.
Lumbar curvature, represented as a percentage of the range of lumbar curvature, was assessed during each of the lifting tasks. Lifting tasks were divided into segments of 20% of the torso flexion during the lift and the lumbar curvature was averaged within that segment.
| Torso Inclination | → | FLEXION | → | |||
|---|---|---|---|---|---|---|
| (% of Lift Inclination) | 0–20 | 20–40 | 40–60 | 60–80 | 80–100 | |
 |
Light-Fast | 37.4 (SD 50.9) | 44.7 (SD 21.5) | 45.0 (SD 24.1) | 44.0 (SD 32.9) | 42.5 (SD 54.3) |
| Light-Slow | 35.6 (SD 40.5) | 46.4 (SD 28.5) | 47.8 (SD 29.7) | 53.4 (SD 27.2) | 50.6 (SD 39.0) | |
| Heavy-Fast | 35.5 (SD 54.2) | 46.7 (SD 23.7) | 51.4 (SD 21.3) | 61.2 (SD 23.5) | 62.6 (SD 43.0) | |
| Heavy-Slow | 49.8 (SD 45.9) | 54.6 (SD 16.2) | 66.0 (SD 20.5) | 79.3 (SD 26.3) | 81.8 (SD 40.5) | |
| Torso Inclination | → | EXTENSION | → | |||
| (% of Lift Inclination) | 80–100 | 60–80 | 40–60 | 20–40 | 0–20 | |
 |
Light-Fast | 54.1 (SD 45.9) | 70.7 (SD 18.3) | 70.5 (SD 21.0) | 64.5 (SD 26.7) | 42.2 (SD 54.0) |
| Light-Slow | 46.8 (SD 39.8) | 68.5 (SD 20.2) | 70.8 (SD 21.7) | 64.9 (SD 22.2) | 43.5 (SD 42.6) | |
| Heavy-Fast | 60.4 (SD 50.6) | 76.7 (SD 23.3) | 78.4 (SD 28.1) | 73.0 (SD 31.7) | 44.2 (SD 48.9) | |
| Heavy-Slow | 75.9 (SD 45.2) | 92.4 (SD 25.6) | 92.4 (SD 21.9) | 84.3 (SD 25.9) | 60.7 (SD 38.6) | |