Table 2 Thickness of the right transverse abdominal muscle (TrA) in participants with pelvic girdle pain (PGP) and controls without PGP
|  | PGP (n = 43) | Controls (n = 39) | Group difference |
|---|---|---|---|
TrA thickness at rest in mm, median (IQR) | 3.1 (1.6) | 3.1 (1.6) | 0.17 (95% CI −0.25 to 0.54) p = 0.54 |
TrA thickness increase during ASLR ipsilateral in %, median (IQR) | 31 (46) | 11 (25) | 25.7 (95% CI 14.9 to 41.2) p < 0.001 |
TrA thickness increase during ASLR contralateral in %, median (IQR) | 31 (57) | 13 (22) | 23.6 (95% CI 10.4 to 37.5) p = 0.005 |