She is spouting nonsence - the baby is in the womb, not her abdominal cavity, her stomach muscles have nothing to do with anything! I had my son breech and in the normal manner 10 years ago, he simply refused to turn and docs dont like to force babies to move in the last weeks.
Why does that dirt-bag get so much publicity?
Of course her stomach (abdominal) muscles keep the child in, they keep the uterus inside the body as well. If you didn't have them you'd be running round with all your intestines, uterus, the lot trailing on the floor.
Have you no idea of anatomy?