Table 1. Mean (± SD) thickness of the transversus abdominis (TRA) and rectus abdominis (RA) in each testing condition. Mean percentage (%) differences (± standard error of measurement) between each exercise and resting condition are also reported.
Condition TRA (mm) % difference compared to rest RA (mm) % difference compared to rest
Rest 4.57 ± 0.79 14.80 ± 2.34
ADIM 6.26 ± 0.94 36.98 ± 3.5 13.57 ± 2.36 -8.31 ± 1.89
Bridge 4.84 ± 0.67 5.9 ± 3.28 15.14 ± 2.44 2.22 ± 2.9
Bridge-ADIM 6.72 ± 1.07 47.04 ± 4.15 14.67 ± 3.03 -0.87 ± 2.9
Bridge10 5.06 ± 0.84 10.72 ± 4.37 15.11 ± 2.77 2.02 ± 2.36
Bridge-ADIM10 6.86 ± 0.99 50.10 ± 4.59 14.16 ± 2.83 -4.32 ± 2.22
Bridge20 5.09 ± 0.84 11.37 ± 4.81 15.33 ± 2.85 3.51 ± 3.37
Bridge-ADIM20 6.65 ± 1.43 45.51 ± 6.34 14.44 ± 2.73 -2.43 ± 2.7
N= 20, ADIM= Abdominal drawing-in maneuver, Bridge= pelvic lift, Bridge-ADIM = Bridge with ADIM, 10 = exercise performed with additional resistance of 10 kg,20 = exercise performed with additional resistance of 20 kg