Dumbbell Lateral Raise Hand Cues: Pouring the Pitcher Myth vs Neutral Wrist

The pouring the pitcher lateral raise myth says that tilting your pinky up, as if emptying a jug of water, is the “dangerous” way to do side raises. The honest answer is in between. No study shows the cue injures healthy lifters, but lab imaging does show it puts the rotator cuff tendon in a tighter spot, so a neutral grip or thumbs slightly up is the safer default.

This sits inside our complete shoulder and delt training guide. Here we only deal with one thing: what your hands should be doing, and what the research can and cannot tell you.

Where the “pouring the pitcher” cue came from

Old-school bodybuilding coaching said to tip the front of the dumbbell down, like pouring from a jug, so the lateral delt works harder. The idea was that rotating the arm inward shifts the load onto the side delt and away from the front delt and traps.

There is a kernel of truth in it, which we will get to. The problem is how the cue got sold: as a free upgrade with no downside. That part is not supported.

Why internal rotation raises the shoulder question

When you lift your arm to the side, the top of your upper arm bone passes under a bony roof called the acromion. The rotator cuff tendon (mainly the supraspinatus) and a fluid-filled bursa sit in that gap. Narrowing of that gap is one proposed reason for the pinching pain people call impingement or subacromial pain, although the exact causes are still debated.

Researchers measured this directly. A small MRI study of 12 healthy volunteers found that the minimal distance between the humerus and acromion shrank from about 7.0 mm at 30 degrees of abduction to 3.9 mm at 120 degrees (Graichen et al., 1999). So height matters before hand position does.

Then came the twist. At 90 degrees, the gap was 7.6 mm with internal rotation, 5.4 mm in neutral and 4.4 mm with external rotation. That is the reverse of what the myth’s critics usually claim. But the authors also noted that with internal rotation the closest point penetrated the supraspinatus tendon at its most vulnerable part, at the front-bottom edge of the acromion, and they described the tightest contact for the tendon as 90 degrees of abduction with about 45 degrees of internal rotation.

Pinky up vs thumbs up: what the studies actually found

Here is where the studies disagree, and why.

Study A (Graichen, MRI, unloaded): internal rotation gave the biggest bone gap but moved contact onto the tendon.

Study B (Longo, ultrasound, 25 healthy men): compared 90 degrees of abduction with no rotation, with maximal external rotation, and a higher upright-row position, with and without a 4 kg load. Holding the load, the space was larger with external rotation than neutral. Unloaded, neutral was smaller than external rotation (Longo et al., 2017). That study did not test internal rotation at all.

Why do they differ? Different imaging, different positions, and different questions. One measured the closest point of bone to bone on MRI, the other measured the subacromial space on ultrasound, and only one used a load. Neither study followed lifters for months to see who got hurt.

The broader review literature leans one way. A 2009 review in Sports Medicine reports that scapular internal rotation and anterior tilt, both of which narrow the subacromial space, are greater in the “empty can” (thumb down) than the “full can” (thumb up) scaption position, and that the full can carries less impingement risk (Escamilla et al., 2009). A 2018 modelling study in 20 people also found that the arm’s plane of elevation matters: the lowest modelled tendon compression occurred in flexion at lower elevation angles (Lawrence et al., 2018).

The takeaway is modest. Internal rotation is not proven harmful, but it is the position most associated with tendon contact, so there is little reason to default to it.

Why the cue exists: the middle deltoid trade-off

Here is the honest counterpoint. Pinky up does seem to make the delt work harder.

A fine-wire EMG study of 22 asymptomatic people compared raises in the scapular plane. Middle deltoid activity was 77% of maximum with the pinky-up (empty can) position and 52% with thumb up (full can). Supraspinatus activity was not statistically different (Reinold et al., 2007).

Before you rush to tilt your dumbbells, three caveats. The spread was big (77 plus or minus 44, versus 52 plus or minus 27). The people were not lifters doing 12 reps near failure. And EMG amplitude has not been shown to reliably predict how much a muscle grows.

Another small study of eight young men found that supraspinatus activity clearly exceeded the other shoulder muscles only in the thumb-up position, at the lighter load and low angles, in line with the idea that thumb up is a legitimate shoulder exercise, not a watered-down one (Yasojima et al., 2008). I would not hang much on eight people.

The safer cue: neutral or thumbs slightly up

So what do we do with all this? Here is what I would coach.

• Neutral wrist. Palms facing the floor or slightly toward each other, forearm in line with the wrist.
• Thumbs a touch higher than pinkies. Coaches often say 5-10 degrees. That number is a coaching rule of thumb, not a measured optimum, so treat it as “slightly up” not “exactly this angle.”
• Raise a few inches in front of the body. Think of the arms moving in a V, not a straight T. This is the scapular plane, and it is a comfortable place for most shoulders.
• Stop around shoulder height. The MRI data shows the space keeps closing as the arm goes higher, and there is no clear evidence you need to go higher to grow the lateral delt.
• Lead with the elbows. The hand follows. If the dumbbell rises faster than the elbow, you are doing a front raise with a wrist flick.
• Keep the elbow slightly bent and the traps quiet. Shrugging up is how most people cheat the raise.

The same logic applies to the equipment you pick. We compare the options in dumbbells vs cables vs machine lateral raises, and if you want the anatomy behind why the side delt does this job, see the three deltoid heads.

Is pinky up ever fine?

Possibly, for some people. If your shoulders feel great, you keep the weight moderate, you stay in front of the body and stop at shoulder height, then a bit of internal rotation is unlikely to be a problem. Evidence for harm in healthy lifters is lacking, not strong.

But there is a practical reason to avoid it anyway. If you ever develop a sore shoulder, a strongly internally rotated raise is one of the first things a physio is likely to change. Why build a habit you may need to unlearn?

When pinching pain is a doctor question, not a technique question

Impingement-type symptoms are common, and the research is more encouraging than most people expect. An umbrella review of 16 systematic reviews reported a strong recommendation for exercise therapy as the first-line treatment for subacromial shoulder pain (Pieters et al., 2020). A statement paper from the Danish sports physiotherapy society found that rehabilitation programmes including strengthening exercises reduced pain and disability in athletes with subacromial impingement, though the quality of evidence was very low to moderate (Liaghat et al., 2023).

That is why a sore shoulder does not mean “never lift again.” It does mean get it looked at when:

• pinching pain at the top of raises lasts more than one to two weeks;
• you wake up with night pain or cannot lie on that side;
• you notice weakness, a catching feeling, or pain that spreads down the arm;
• pain came on after a fall or a sudden pop.

A physio or sports doctor can test the shoulder properly. Nothing in this article can diagnose you.

For a deeper look at lifting around a cranky shoulder, read our guide to subacromial shoulder impingement and lifting solutions, and if you like high-pull movements, check upright row modifications. Strengthening the rotator cuff also helps; see rotator cuff strengthening for shoulder health.

How to put this into your push day

Pick one place in the week for lateral raises and do them the same way each session. Our free push day plan already slots them in. Use neutral or thumbs slightly up, 2-4 sets of 10-20 controlled reps with an elbow-led path, and stop each set a rep or two shy of form breakdown.

If you cannot tell how hard “a rep or two shy” is, the RIR and RPE calculator can help you calibrate. Then change one variable at a time (weight, reps or hand angle) and give it a few weeks.

What we still do not know

Honest limits. Every imaging study above used healthy volunteers, small samples and lab positions. None followed lifters over years. EMG studies measured short isometric or rehab-style sets, not hypertrophy training. So the best available statement is “internal rotation looks worse mechanically, with a small possible trade-off in delt activation,” not “the pitcher cue causes bursitis.” Anyone claiming certainty either way is going past the data.