By Calli | Licensed Chiropractor & Esthetician
Most people who walk into my office with shoulder pain have already diagnosed themselves. “I have rounded shoulders,” they say — usually confidently, usually after finding this conclusion online.
Sometimes they’re right. But more often, there’s a second diagnosis hiding underneath the first — one that looks almost identical from the outside, requires a completely different correction, and gets significantly worse when treated like rounded shoulders.
It’s called anterior humeral glide. And if you’ve been stretching and strengthening for rounded shoulders without results, this might be exactly why.
What Are Rounded Shoulders?
Rounded shoulders — technically scapular protraction — is a postural problem. The entire shoulder blade (scapula) migrates forward and outward, away from the spine.
From the front, the chest looks narrow and compressed. The arms hang forward of the body’s midline, and the palms tend to face backward. From the side, the upper back curves into kyphosis, the head juts forward, and the shoulders collapse inward.
The cause is almost always postural: prolonged desk work, chronic forward head positioning, weak mid-trapezius and rhomboids, tight pectorals. The scapula is displaced — but the shoulder joint itself is structurally intact.
The fix for rounded shoulders targets scapular retraction: rows, face pulls, band pull-aparts, and anterior chest stretching. These work well — when rounded shoulders is actually the problem.
What Is Anterior Humeral Glide?
Anterior humeral glide (AHG) is different — and more subtle. The problem here is not the position of the shoulder blade. It’s the position of the humeral head (the ball of the joint) inside the glenoid socket (the cup it sits in).
The humeral head has translated forward within the joint. Not a dislocation — we’re talking millimeters of anterior shift. But enough to alter the mechanics of every shoulder movement, compress the anterior joint capsule, and set the stage for impingement, rotator cuff irritation, and bicipital tendon problems.
How to Tell Them Apart
From a distance, AHG and rounded shoulders look similar — both push the shoulder forward. But the differences are visible when you know what to look for.
With rounded shoulders: the entire shoulder complex shifts forward as one unit — blade, top of shoulder, collarbone. The arm internally rotates, so the palms face backward (toward the wall behind you) when arms hang at rest.
With anterior humeral glide: the front of the shoulder — specifically the area just below the front of the collarbone — appears to bulge or protrude slightly forward. The top of the shoulder may sit relatively normally, but there is a distinct forward fullness at the anterior joint. The hands, when arms hang relaxed, tend to face the outer thighs rather than rotating inward. The rotation pattern is different.
A clinical tell I use: in AHG, there is often a subtle dimpling or asymmetry at the front of the shoulder where the humeral head is pressing forward. It is not always visible — but it is palpable in almost every case.
Why the Wrong Exercise Makes It Worse
This is where the distinction becomes critical.
If you have anterior humeral glide and treat it like rounded shoulders, you will almost certainly make it worse. Aggressive pectoral stretching — a cornerstone of rounded shoulder correction — can increase anterior capsule laxity and allow the humeral head to glide further forward. Heavy internal rotation strengthening compounds the problem.
AHG requires the opposite approach: restoring posterior capsule mobility, activating the posterior rotator cuff (particularly infraspinatus and teres minor) to pull the humeral head back into the center of the socket, and retraining neuromuscular control of the joint.
In my practice, I’ve seen patients who had done months of standard rounded shoulder protocols and made their AHG measurably worse. The exercises weren’t extreme — they were just treating the wrong structure.
The Checklist: Which One Do You Have?
Use this as a starting screen — not a diagnosis, but a way to clarify which question to bring to your clinician.
You May Have Rounded Shoulders If:
- Your upper back rounds visibly when you stand at rest
- Your palms face backward (toward the wall behind you) when arms hang relaxed
- Your chest feels chronically tight; mid-back feels weak and fatigued
- You spend 6+ hours daily at a desk, laptop, or phone
- Chest stretching and rowing exercises give you at least temporary relief
- The entire shoulder appears to move forward as one unit
You May Have Anterior Humeral Glide If:
- The front of your shoulder looks slightly rounded or bulging even when your posture is otherwise decent
- Your palms face your outer thighs (not backward) when arms hang relaxed
- You have anterior shoulder pain specifically with overhead pressing or reaching forward
- Chest stretching does not help — or makes things feel worse
- You have a history of shoulder instability, labral problems, or repeated subluxations
- Someone pressing on the front of your shoulder can feel the humeral head sitting forward
Checked items in both columns? You likely have a combination of both — which is common. Treatment sequencing matters significantly here, and this is where professional assessment becomes essential.
Calli’s Clinical Note
The first thing I do with any shoulder complaint — before any adjustment, before any exercise prescription — is assess joint mechanics. I check scapular position, yes. But I also palpate for anterior humeral head translation, assess posterior capsule restriction, and test internal-to-external rotation ratios.
The assessment takes ten minutes. The difference it makes to outcomes is significant. I’ve had patients with perfectly normal scapular position who had marked anterior humeral glide on one side. I’ve had others with severely rounded shoulders and no AHG at all. Plenty with both.
A proper chiropractor doesn’t treat the most obvious structural finding — they identify what is actually driving the dysfunction. That starts with a real examination, not a guess.
The Bottom Line
Shoulder dysfunction is rarely as simple as “I have bad posture.” The structural causes are specific. The solutions must match them exactly.
If you have been doing the standard rounded shoulder protocol for months without results — or your symptoms are worsening despite doing “everything right” — you may be treating the wrong problem entirely.
Get properly assessed. Find out which structure is actually out of position. Then correct the right thing, in the right sequence. That is what a thorough chiropractic evaluation is designed to do.
Related Reading: Facial Asymmetry Getting Worse With Age? A Chiropractor & Esthetician Explains the Structural Root Cause — How full-body structural imbalance shows up on your face over time.
Disclaimer: This content is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before beginning any new treatment or exercise program.