17 April 2026 : Clinical Research
Effects of Abdominal Bracing Versus Abdominal Hollowing on Abdominal Muscle Thickness and Activation During Static and Dynamic Trunk Stabilization Tasks in Healthy Adults
Kwang-Hyuk Jung BEF 1, DooChul Shin ACDEG 2*DOI: 10.12659/MSM.952117
Med Sci Monit 2026; 32:e952117
Table 2 Comparison of abdominal muscle thickness between abdominal bracing and hollowing techniques.
| Muscle | Bracing | Hollowing | p value | Effect size (d) |
|---|---|---|---|---|
| Rectus abdominis | 10.07±1.55 | 9.22±1.46 | 0.032 | 0.58 |
| External oblique | 7.25±2.01 | 7.38±2.18 | 0.642 | 0.09 |
| Internal oblique | 6.63±2.14 | 8.65±3.18 | 0.011 | 0.79 |
| Transversus abdominis | 2.41±0.80 | 4.08±1.23 | <0.001 | 1.23 |