In plain words
The transversus abdominis is the deepest of the . It wraps around the middle like a corset, from the lower ribs to the pelvis. Together with the other abdominal layers, it supports the trunk and the belly wall. In pregnancy the belly stretches, and the central seam, the , can widen. After birth, many people work to rebuild this deep layer, sometimes with a pelvic floor or physical therapist. Core recovery is gradual, and it looks different for everyone. A bulge, pain, or weakness that does not improve is a reason to see a provider.
The deeper version
The transversus abdominis is the innermost lateral abdominal wall muscle, with transverse fibers that contribute to and trunk stability. The linea alba is a three-dimensional meshwork of formed by the fused aponeuroses of the external oblique, internal oblique, and transversus abdominis, with oblique and transverse fiber orientation that resists longitudinal and transverse strain. Widening in pregnancy, , is measured at specified levels. Evidence on whether targeted exercise changes inter-rectus distance is limited, with small trials and mixed results.
Where it comes up
- Back, neck, and shoulder pain from feeding and carryingPostpartum: Your Body
- Diastasis recti: abdominal separationPregnancy: Your Body
- Your body after birth: weight, shape, and timelinesPostpartum: Your Body
What mothers here say about transversus abdominis
No one has posted under this term yet.
Sources
- American College of Obstetricians and Gynecologists — Physical Activity and Exercise During Pregnancy and the Postpartum Period, Committee Opinion 804, 2020