A standard overhand (pronated) grip at about 1.5 times shoulder width is the most common recommendation for targeting the lats, but the actual difference between grip types is smaller than most people assume. EMG research consistently shows that lat activation stays remarkably stable across pronated, supinated, and neutral grips during vertical pulling movements, hovering around 45% to 50% of maximum voluntary contraction regardless of hand position. The grip you choose matters less for lat recruitment than how you perform the rep.
What the EMG Data Actually Shows
A study published in the Journal of Functional Morphology and Kinesiology tested seven different grip configurations on the lat pulldown, including pronated, supinated, and neutral orientations. The result: no significant difference in lat activation across any of them. The lats fired at consistent levels in both the pulling and lowering phases, likely because the lat muscle is the primary mover in any vertical pull, no matter how your hands are oriented.
A separate study in the Journal of Human Kinetics measured lat activation during pronated-grip pull-ups at roughly 80% to 85% of maximum voluntary contraction. While this study didn’t include a supinated comparison, the high baseline activation reinforces the point: the lats are doing heavy work during any pull-up variation, and your grip orientation redistributes effort to the secondary muscles more than it changes what the lats are doing.
How Grip Changes the Supporting Muscles
Where grip choice does make a meaningful difference is in the muscles that assist the lats. An overhand (pronated) grip pulls your elbows out to the sides, creating a shoulder adduction movement. This pattern limits how much your biceps can contribute, forcing your lats and upper back to handle a larger share of the load. The National Academy of Sports Medicine notes that during pull-ups, the lats do “the majority of the work since they are getting less help from the biceps.”
An underhand (supinated) grip, the classic chin-up, shifts the movement toward shoulder extension, where the elbows travel more behind the body. This position is stronger for the biceps and allows them to contribute more force. The lats still fire hard, but you may fatigue in the biceps before the lats are fully challenged. That’s the practical tradeoff: not less lat activation per rep, but potentially fewer total reps limited by arm fatigue.
A neutral grip (palms facing each other) splits the difference. It uses a blend of shoulder adduction and extension, and it places the forearm in its most natural position. For people who feel wrist or elbow discomfort with other grips, neutral is often the most comfortable option with no penalty to lat recruitment.
Grip Width and the “Wider Lats” Myth
The idea that a wider grip builds wider lats is one of the most persistent beliefs in the gym. Research from the Journal of Strength and Conditioning Research tested narrow, medium, and wide grips on the lat pulldown and found similar lat activation across all three widths when looking at the full repetition. The only exception was the lowering (eccentric) phase, where the wide grip produced slightly more lat and infraspinatus activation than the narrow grip.
That small eccentric advantage doesn’t justify defaulting to the widest grip you can manage. A medium grip, roughly 1.5 times your shoulder width, lets you pull through a full range of motion with good control. Going much wider shortens the range of motion and shifts more stress onto the shoulder joint without a proportional increase in lat work. A shoulder-width to slightly-wider-than-shoulder-width grip is the practical sweet spot for most people.
Shoulder Health Across Grip Types
Wide-grip pull-ups come with a real downside beyond diminishing returns. A study in the Journal of Science and Medicine in Sport examined shoulder blade and upper arm mechanics across pull-up techniques and found that wide-grip pull-ups reduced the range of shoulder blade movement and placed the arm in a position associated with increased subacromial impingement risk. Reverse-grip (supinated) pull-ups also showed kinematics linked to impingement, though through a different mechanism involving high arm elevation and rotation.
If you train pull-ups frequently or have any history of shoulder discomfort, a standard or neutral grip at moderate width is the safest long-term choice. It allows full scapular movement and keeps the shoulder in a less compromised position throughout the rep.
What Actually Matters More Than Grip
Since the research shows lat activation is largely grip-independent, the factors that genuinely separate a good lat-building pull-up from a mediocre one are technique-based. Initiating the pull by depressing your shoulder blades (pulling them down and back) before bending your arms ensures the lats engage early rather than letting the biceps take over the start of the rep. Controlling the lowering phase for two to three seconds keeps the lats under tension longer, and the eccentric phase is where some grip variations do show slight activation differences.
Full range of motion also matters more than grip selection. Starting from a dead hang with arms fully extended and pulling until your chin clears the bar maximizes the stretch and contraction the lats experience. Partial reps with a wide grip will always be less effective than full reps with a moderate grip.
Load progression is the final piece. Once you can perform three to four sets of eight to twelve clean reps, adding weight with a dip belt or weighted vest is the most reliable way to drive lat growth, regardless of which grip you use. The lats respond to progressive overload like any other muscle, and no grip variation substitutes for simply making the exercise harder over time.
Choosing Your Grip
- Pronated (overhand), medium width: The default choice. Minimizes bicep contribution, allowing the lats and upper back to dominate. Good shoulder mechanics at moderate width.
- Neutral (palms facing): Equally effective for the lats, easiest on the wrists and elbows. A strong option if you train pull-ups multiple times per week or have joint sensitivity.
- Supinated (underhand): Same lat activation per rep, but bicep fatigue may limit total volume. Best used as a secondary variation or if your goal is to train lats and biceps simultaneously.
- Wide grip: No meaningful lat advantage over medium width. Higher impingement risk with frequent use. Use sparingly if at all.
If you only do one grip, a pronated or neutral pull-up at 1.5 times shoulder width covers your bases. If you rotate grips across training sessions, you get the minor secondary muscle variations each offers while keeping your lat stimulus consistent.