Instead, they run across the midsection, hence the name transverse abdominis. In fact, many of its fibers don't connect to bone at all.
It's a unique muscle because it doesn't connect to and move bones closer together like most other muscles. The TVA, which lies under the rectus abdominis and obliques, is the deepest of the abdominal muscles. When Zane was hitting his famous vacuum pose, he was intensely contracting a muscle we sadly don't think much about today, which is the transverse abdominis (aka transversus abdominis), or TVA.
Let's geek out a little bit and look at a little science behind this vacuum-thing. To them, working on pulling in their midsection was every bit as important as working chest and biceps, and I'd argue that we should have a similar perspective. They actually made it a priority in their training and contest prep to work on performing the coveted vacuum. Guys like Arnold, Frank Zane, and Lee Haney didn't just stumble on these tiny waists and the incredible ability to hit a vacuum pose from any angle - they earned them. I'm talking about small front-to-back, which is something that is within your control, unlike your bone structure. And when I'm talking small waist, I'm not talking genetically small as in left-to-right (narrow iliac crest or hip width). That's what bodybuilding, whether recreational or competitive, should be about - creating a visually appealing physique in its entirety.Įven Arnold Schwarzenegger, who was a mass monster in his day, had a really small waist. A large part of that preference has to do with the sleek waists possessed by those classic, V-shaped bodybuilders.īack in the 70's, bodybuilders didn't just think about building individual body parts they thought about the appearance of the physique as a whole. Many lifters today prefer the old-school bodybuilding physiques as opposed to the modern day behemoths.
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