Medically reviewed by Amy Kwan, PT Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans ...

The latissimus dorsi, to use the muscles' proper name, are the wide, fan-shaped muscles that make up the majority of your mid-back. The lats are especially consequential for several reasons.

The lat pulldown is a staple exercise in many fitness routines, primarily targeting the latissimus dorsi muscles in the back. When performed correctly, it can help build a strong, wide back ...