What's that muscle called, what does it do, and which machine trains it?
Version 2026.11.0
Braces and protects your spine, and bends and twists your torso.
Breathe out and brace as if about to be poked in the stomach. That's the position to hold.
Hover one to see everything else it works.
Kit from the catalog that trains it. Hover to see what else each one hits.