Table 2.
Mean, standard deviation, and p-values of the main effects Posture and Weight of a 2 × 3 two-way repeated measures ANOVA for the three components of the plPTtrk vector (the displacement in the 3D space between the pelvis and trunk body segments); the range of motion of the lumbosacral joint and the right lower limb joints estimated through the biomechanical model (BM) in the correct releasing loads (CRL) and incorrect releasing loads (IRL) tasks.* marks significant differences.
| CRL Task | IRL Task | p-Value | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 kg | 2 kg | 5 kg | 1 kg | 2 kg | 5 kg | Posture | Weight | ||
| plPTtrk | AP (mm) | 234 ± 73 | 231 ± 75 | 226 ± 75 | 304 ± 57 | 295 ± 61 | 287 ± 75 | <0.01 * | 0.14 |
| ML (mm) | 48 ± 21 | 47 ± 23 | 49 ± 20 | 52 ± 25 | 57 ± 26 | 61 ± 29 | <0.01 * | 0.11 | |
| V (mm) | 89 ± 60 | 86 ± 61 | 85 ± 53 | 162 ± 58 | 143 ± 57 | 146 ± 63 | <0.01 * | 0.26 | |
| RoM | Sacr (°) | 39.3 ± 14.2 | 38.5 ± 14.8 | 37.5 ± 14.1 | 55.0 ± 9.9 | 51.6 ± 11.3 | 50.6 ± 12.9 | <0.01 * | 0.09 |
| Hip (°) | 100.4 ± 11.5 | 103.4 ± 11.0 | 105.7 ± 11.5 | 75.0 ± 16.4 | 77.1 ± 16.6 | 78.0 ± 16.2 | <0.01 * | <0.01 * | |
| Knee (°) | 104.1 ± 17.1 | 106.8 ± 18.4 | 108.9 ± 17.9 | 28.2 ± 19.3 | 27.9 ± 19.5 | 27.4 ± 17.5 | <0.01 * | 0.27 | |
| Ankle (°) | 26.8 ± 7.7 | 26.8 ± 7.7 | 26.2 ± 7.2 | 12.4 ± 4.1 | 11.9 ± 5.1 | 12.0 ± 4.2 | <0.01 * | 0.44 | |