Table 3.
Standard deviations of the relative phases between thoracic–pelvic (SD RPthpe) and lumbar–pelvic (SD RPlupe) frontal and transverse plane rotations for the LBP group and the control group. Values given are means with SDs in parentheses
| Velocity (km/h) | NLBPa | SD RPthpe | SD RPlupe | ||
|---|---|---|---|---|---|
| LBP | Control | LBP | Control | ||
| Transverse plane rotations | |||||
| Comfortable | 19 | 18 (13) | 19 (9) | 15 (13) | 16 (11) |
| 1.4 | 19 | 7 (8) | 8 (5) | 6 (8) | 7 (5) |
| 2.2 | 19 | 11 (11) | 14 (15) | 8 (10) | 12 (6) |
| 3.0 | 19 | 15 (8) | 15 (8) | 11(11) | 13 (8) |
| 3.8 | 19 | 14 (6) | 18 (9) | 11 (8) | 17 (8) |
| 4.6 | 17 | 15 (6) | 16 (5) | 10 (5) | 18 (9) |
| 5.4 | 15 | 15 (4) | 15 (4) | 7 (4) | 13 (5) |
| 6.2 | 13 | 16 (8) | 17 (9) | 6 (3) | 10 (5) |
| 7.0 | 5 | 12 (2) | 18 (16) | 4 (2) | 9 (6) |
| Frontal plane rotations | |||||
| Comfortable | 19 | 22 (15) | 11 (5) | 12 (9) | 12 (9) |
| 1.4 | 19 | 31 (19) | 28 (18) | 19 (16) | 20 (18) |
| 2.2 | 19 | 29 (17) | 23 (12) | 18 (14) | 16 (10) |
| 3.0 | 19 | 25 (13) | 19 (13) | 22 (21) | 19 (19) |
| 3.8 | 19 | 22 (15) | 16 (11) | 22 (20) | 15 (12) |
| 4.6 | 17 | 20 (14) | 11 (4) | 14 (10) | 10 (6) |
| 5.4 | 15 | 20 (12) | 11(7) | 12 (10) | 8 (4) |
| 6.2 | 13 | 14 (13) | 10 (7) | 10 (6) | 8 (5) |
| 7.0 | 5 | 19 (7) | 9 (3) | 6 (4) | 7 (6) |
aNumber of LBP participants who could attain this velocity; for control participants N=14 at all velocities