The latissimus dorsi, often just called “the lats,” responds best to pulling movements where your arms move toward your body or behind it. This includes vertical pulls like pull-ups and lat pulldowns, horizontal pulls like rows, and isolation movements like straight-arm pulldowns. The key is understanding which variations emphasize the lats most and how to perform them so you’re not shifting the work to your arms.
What the Lats Actually Do
Your lats are the widest muscles in your body, spanning from the lower half of your spine and the top of your pelvis all the way up to your upper arm bone. They attach across the lower six thoracic vertebrae, the thoracolumbar fascia, the iliac crest, the bottom three or four ribs, and even the tip of your shoulder blade. From there, the muscle fibers converge into a flat tendon that inserts on the front of your upper arm.
This massive attachment area means the lats perform several movements at the shoulder: pulling your arm down toward your side (adduction), pulling it backward (extension), and rotating it inward. Any exercise that loads one or more of these motions will train the lats. The most effective exercises load them through a large range of motion under meaningful resistance.
Pull-Ups and Chin-Ups
Pull-ups are the benchmark lat exercise. When you hang from a bar and pull your body upward, your lats are the primary muscle driving that motion, working through both adduction and extension of the shoulder. Chin-ups, performed with an underhand grip, shift the shoulder action more toward extension, which still recruits the lats heavily while also increasing biceps involvement.
If you can’t yet perform full pull-ups, band-assisted variations or machine-assisted pull-ups let you train the same movement pattern at a manageable load. Progressing toward unassisted pull-ups is one of the most reliable ways to build lat strength over time.
Lat Pulldowns: Grip and Width
The lat pulldown is essentially a pull-up performed from a seated position, and it’s the most studied lat exercise in the research literature. One common belief is that a wide, overhand grip activates the lats significantly more than a narrower grip. The reality is more nuanced.
A study examining three grip widths found similar overall lat activation between wide, medium, and narrow grips when looking at the full repetition. The wide grip did produce greater lat activation during the lowering (eccentric) phase compared to the narrow grip, but across the entire movement, the differences were small. The researchers concluded that a grip width between one and two times your shoulder width produces comparable muscle activation and should lead to similar growth over time. So pick the width that feels strongest and most comfortable for your shoulders.
As for overhand versus underhand: research comparing a wide overhand pulldown to a close underhand (supinated) pulldown found greater lat activation with the wide overhand grip, supporting its reputation as the go-to variation. That said, the underhand grip still works the lats through shoulder extension. It simply brings the biceps into the movement more, which can become a limiting factor before your lats are fully fatigued.
Front Versus Behind-the-Neck
Pulling the bar in front of your body versus behind your head changes the demand on the lats in an interesting way. A high-density EMG study found that pulling to the front produced greater lat activation during the pulling (concentric) phase, while pulling behind the neck produced greater lat activation during the controlled return (eccentric) phase. For most people, the front pulldown is the better default choice because it places the shoulder in a safer position, particularly if you have any mobility limitations.
Rowing Movements
Rows are horizontal pulling movements, and they work the lats through shoulder extension rather than adduction. Research comparing seated rows to lat pulldowns found that the seated row actually produced higher lat activation than both the wide-grip pulldown and the reverse-grip pulldown. Rows also heavily recruit the middle trapezius and rhomboids between your shoulder blades, making them an excellent complement to vertical pulls.
One interesting finding: whether you actively squeeze your shoulder blades together during a row or let them stay in a more neutral position did not change lat activation. It also didn’t significantly change middle trapezius or rhomboid activation. So rather than obsessing over scapular retraction, focus on pulling through a full range of motion and controlling the weight on the way back.
Barbell rows, dumbbell rows, cable rows, and machine rows all load the same basic pattern. Single-arm dumbbell rows have the added benefit of letting you work each side independently and use a slightly greater range of motion. T-bar rows and chest-supported rows remove lower back fatigue as a limiting factor, which can help you train the lats closer to failure.
Straight-Arm Pulldowns
The straight-arm pulldown is one of the few ways to isolate the lats without significant biceps involvement. You stand facing a cable machine, keep your arms nearly straight, and sweep the handle in an arc from about eye level down to your thighs. Because your elbows stay extended throughout, the biceps can’t contribute much force, and the lats do the vast majority of the work through shoulder extension.
This exercise puts the lats through a large range of motion, making it useful both as a warm-up to “wake up” the lats before heavier compound work and as a finishing movement at the end of a session. Keep your chest open and your shoulders pulled down rather than letting them shrug up toward your ears. Stop the movement when your hands reach the sides of your legs.
How to Actually Feel Your Lats Working
The most common problem people report with back training is feeling their arms fatigue before their lats. This usually comes down to grip and cueing. If you squeeze the bar tightly and wrap your thumb around it, your forearms work harder and your brain tends to drive the movement from your hands rather than your back. Try using a looser, thumbless grip (sometimes called a “hook grip” or “false grip”) to reduce forearm involvement.
The single most effective cue, recommended by the American Council on Exercise, is to think about pulling your elbows “back and down” rather than thinking about moving the bar or handle. When you focus on driving your elbows toward your hips, the movement originates from the lats and shoulder blades instead of the forearms. On pulldowns, avoid stopping the bar at chin height with your torso bolt upright. Bring the bar to your upper chest and allow a slight lean back to achieve full lat contraction.
If forearm fatigue is still a limiting factor after adjusting your grip, lifting straps let you maintain your hold on the bar without gripping hard. This can be the difference between your lats or your forearms giving out first.
Sets, Reps, and Programming
For building lat size, the research on hypertrophy is clear: muscle growth can occur across a wide range of loading, from roughly 30% of your max all the way up to heavy loads. However, moderate loads in the 8 to 12 rep range are the most time-efficient approach. Training with very light weights requires far more repetitions per set to stimulate growth, while very heavy loads require more total sets to match the hypertrophy produced by moderate loads.
Training volume, measured in hard sets per muscle group per week, has a well-established dose-response relationship with muscle growth. Most people respond well to 10 to 20 sets per week for the back, spread across two or three sessions. A practical approach is to include one vertical pull (pull-ups or pulldowns), one horizontal pull (a rowing variation), and optionally one isolation movement (straight-arm pulldowns) in each back session. Two sessions per week hitting these patterns gives you enough volume and frequency to drive growth without excessive fatigue.
Varying your exercises across sessions can be helpful. You might do wide-grip pulldowns and barbell rows in one session, then chin-ups and single-arm dumbbell rows in the next. This exposes the lats to slightly different force angles and ranges of motion across the week while keeping the core movement patterns consistent.