The primary muscle worked during the lat pulldown is the latissimus dorsi, which is the broadest muscle of your back and responsible for pulling movements. Additionally, this exercise engages several other muscles, such as the biceps, rhomboids, and trapezius, to support the movement.

The lat pulldown works many muscles, including the latissimus dorsi, pectoralis major, rotator cuff, and biceps brachii.

Muscles Worked During Lat Pulldowns This exercise mainly targets the latissimus dorsi, more commonly referred to as the "lats," which is a muscle just under the armpits that spreads across and down the back. Lat pulldowns also work teres major, a muscle located near the bottom of the shoulder blade.

All lat pulldown workouts work on these muscles; latissimus dorsi, arm muscles, and core muscles.