I don't want to start a typical belt vs. beltless debate. I just have a few questions relating to the debate.
When you go without a belt, the transverse abdominis pulls the stomach in to create intra-abdominal pressure. When you use a belt intra-abdominal pressure is created by pushing out against the belt. Is this "pushing out" a function of the transverse abdominis as well, or is this performed by other muscles of the abdominal region?
If you are always using a belt and not doing abdominal work, can this cause the transverse abdominis to be deconditioned for pulling in?
I may have more questions in response to your answers, but that is it for now.