Muscle map
What's that muscle called, what does it do, and which machine trains it?
What's that muscle called, what does it do, and which machine trains it?
Version 2026.11.0
What's newStraightens your elbow. It makes up about two thirds of your upper arm.
Overhead extensions stretch the long head, which pushdowns alone don't reach.
Hover one to see everything else it works.
Kit from the catalog that trains it. Hover to see what else each one hits.