A pronated (overhand) grip activates the lats more than a supinated (underhand) grip, and this holds true whether your hands are placed wide or narrow. That’s the short answer. But grip width, hand orientation, and the type of handle you choose each shift the emphasis slightly, so the “best” grip depends on what you’re trying to accomplish in a given workout.
Overhand vs. Underhand: What the Research Shows
A study comparing four grip variations (wide-pronated, wide-supinated, narrow-pronated, and narrow-supinated) found that both pronated grips produced greater lat activation than both supinated grips. Biceps and middle trapezius activity stayed roughly the same across all four variations. The researchers’ conclusion was straightforward: if your primary goal is working the lats, use an overhand grip.
That doesn’t make the underhand grip useless. Flipping your palms to face you shifts your elbows closer to your sides and changes the pulling arc so your biceps can contribute more comfortably throughout the rep. If you want to train your lats and biceps in a single movement, or if the overhand position bothers your wrists, a supinated grip is a reasonable alternative. Just know the lats are doing slightly less of the total work.
How Grip Width Affects Muscle Activation
Grip width matters less than most people assume. When researchers measured muscle activity across wide, medium, and narrow grips for the full range of motion, lat activation was statistically similar between all three widths. The trapezius and the rotator cuff muscles behind the shoulder also showed comparable activity regardless of hand spacing.
The one phase where width made a clear difference was the lowering (eccentric) portion of the rep. During that phase, a wide grip activated the lats and the infraspinatus (a rotator cuff muscle) significantly more than a narrow grip. There was also a trend for medium grip to beat narrow grip for lat activation, and for medium grip to edge out wide grip for biceps involvement.
In practical terms, a medium grip (hands roughly shoulder-width apart or slightly wider) is a solid default. It gives you strong lat recruitment without forcing your shoulders into an extreme position. A wide grip can add a bit more lat emphasis on each eccentric, but the difference is modest. A narrow grip tends to let the biceps and forearms take over sooner, which can limit how much load your lats actually handle.
Neutral Grip and V-Bar Handles
A neutral grip (palms facing each other) is the option most often overlooked. It places your wrists and shoulders in a natural alignment, which can feel more comfortable if you have any existing shoulder irritation. The pulling path with a V-bar or parallel-grip handle brings your elbows tight to your torso, encouraging a longer range of motion at the bottom of the rep and a strong squeeze through the mid-back.
The existing EMG research focused on pronated and supinated grips rather than neutral, so direct comparison data is limited. Biomechanically, though, a neutral grip sits somewhere between the two: it doesn’t externally rotate the shoulder as much as a wide pronated grip, and it doesn’t internally rotate it as much as a supinated grip. For people who train frequently and want a grip they can use year-round without joint complaints, the neutral handle is worth rotating in.
Behind-the-Neck Pulldowns: Worth the Risk?
Pulling the bar behind your neck forces your shoulders into extreme external rotation while under load. This puts significant stress on the rotator cuff and the ligaments around the shoulder joint. The position also demands well-above-average shoulder flexibility, and most people compensate by jutting their head forward, which loads the cervical spine in a compromised position.
Some lifters report feeling a stronger contraction with behind-the-neck pulldowns, but research indicates that pulling to the front of your chest is at least as effective for lat activation, with far less injury risk. Unless you have exceptional shoulder mobility and a specific reason to include this variation, pulling to the front is the safer and equally productive choice.
Shoulder-Friendly Grip Choices
If you’ve dealt with shoulder pain or impingement, your grip choice matters more than it does for a healthy shoulder. The pulling motion in any lat pulldown can irritate compressed structures under the bony shelf at the top of your shoulder blade. A neutral grip handle or a wider pronated grip tends to reduce internal shoulder strain compared to a narrow supinated grip, which forces more internal rotation under load.
Keeping your elbows slightly in front of your body rather than flared straight out to the sides also helps. This small adjustment changes the angle of the upper arm bone relative to the shoulder socket and reduces the chance of pinching soft tissue during each rep. If a particular grip causes a sharp or catching sensation in the front of your shoulder, switch handles rather than pushing through it.
Choosing the Right Grip for Your Goals
Rather than searching for one perfect grip, think of each variation as a tool that shifts emphasis slightly.
- Maximum lat focus: Medium-to-wide overhand grip on a straight bar. Pulls the elbows out and away from the body, which aligns with the lat’s primary pulling function.
- Lat and biceps together: Shoulder-width underhand grip. Keeps the biceps in a mechanically strong position so both muscle groups share the load.
- Joint-friendly option: Neutral grip on a V-bar or parallel handle. Easiest on the wrists and shoulders, allows a full range of motion, and still hits the lats effectively.
- Eccentric emphasis: Wide overhand grip with a controlled 3-to-4-second lowering phase. This is where wide grip shows its clearest advantage in lat activation over narrower grips.
Rotating between two or three of these grips across your training week or month gives the lats slightly different stimuli each time and keeps your shoulders from accumulating repetitive stress in one position. The differences in muscle activation between grips are real but not dramatic, so consistency and progressive overload matter more than any single hand position.