I was selected by the teacher to wear it. It wasn't because she saw something special in me (so she says) it was simply because I was the first guy to enter the room. First up, the chest belt. This was designed to make it difficult for me to breathe. Simulating Baby C compressing on Allison's diaphragm. She had me take a deep breath, then push it all out. Once I pushed it all out. She pulled HARD on the strap and made it really tight.
Next up, I got a huge rack and a big old belly. It weighed about 20-25 pounds. Then she added two 10 pound balls to each side which would simulate Baby C moving and got the weight up to 40-45 pounds. Lastly, she added a patch under the belly that would rest/press on my bladder.