Shoulder Pain with Overhead Movements - What you Need to Know About the Shoulder
Before we load a single rep, let's talk about what's actually holding your shoulder together and why women, flight crew, and anyone nursing a cranky shoulder tend to feel it first.
As a physical therapist who spends most of my clinic hours with pilots, flight crew, and active women rebuilding strength after pregnancy, surgery, or just years of overhead-everything, I can tell you the fastest way to stop being afraid of your shoulder is to understand it. So before we get anywhere near training — that's Part 3, I promise it's coming — let's talk anatomy and pathology, in plain English, no lecture hall required.
Your rotator cuff, decoded
Your shoulder is the most mobile joint in your body, and it pays for that freedom with stability. Think of it as a golf ball (your upper arm bone) resting on a tee (a shallow socket on your shoulder blade) — great for reach, precarious by design. Something has to keep that golf ball centered on the tee through every overhead reach, every carry, every awkward twist to grab a seatbelt buckle behind you.
That something is not your deltoid — the big, rounded muscle that caps your shoulder and gets all the gym-selfie glory. The deltoid is a mover. Your rotator cuff is a team of four smaller, deeper muscles whose real job is control: centering the humeral head so the big movers can do their thing without grinding the joint apart. Four muscles, one mission, and yes — they spell something.
S
Suprasinatus
Sits atop the shoulder blade; kicks off the first degrees of lifting your arm out to the side. The most commonly irritated of the four.
I
Infraspinatus
The workhorse external rotator — controls how your arm rotates outward, like reaching back for a seatbelt.
T
Teres Minor
A smaller partner to the infraspinatus, fine-tuning that same outward-rotation control.
S
Subscapularis
The largest of the four, tucked against the front of the shoulder blade — handles internal rotation and front-of-joint stability.
When things go sideways: common rotator cuff pathologies
"Rotator cuff injury" gets used as a catch-all, but it usually means one of a few specific things. Here's the plain-English version of what might show up on a report if you ever get imaging done:
Rotator Cuff Tendinopathy
Irritation and breakdown within the tendon tissue itself — usually from repetitive load outpacing recovery, not one dramatic event. The classic "overworked and under-supported" tendon.
Subacromial Pain Syndrome (Impingement)
The cuff tendons and the cushioning bursa get compressed in the narrow space beneath the tip of the shoulder blade during certain arm positions — often overhead reaching.
Bursitis
Inflammation of that same cushioning sac (the subacromial bursa), frequently riding along with tendinopathy or impingement rather than showing up alone.
Partial - and full-thickness tears
Degenerative wear over years, or an acute tear from a fall or sudden pull. Worth knowing: partial tears are common — some people have them and feel nothing at all.
One more for the "don't self-diagnose from a 11pm Google spiral" file: frozen shoulder (adhesive capsulitis) is a different animal entirely. It's a global stiffening of the joint capsule, not a cuff problem — but it gets lumped in constantly because the symptoms overlap. If you genuinely cannot move your arm in any direction, that's frozen shoulder territory, and it needs its own approach.
Why this hits women and flight attendants differently
None of this is random. A few things stack up for the population I work with most:
Repetitive overhead volume. Loading bins, closing them, service carts, galley work — cumulative reps beat one bad moment as the usual driver of cuff irritation. It's rarely the one heavy bag; it's the four hundredth bag this month.
One-shoulder habits. Rollaboards, totes, diaper bags, purses — carried on the same side for years — quietly change how your shoulder blade sits and how load gets shared across the joint.
A smaller strength reserve for the same task. On average, women carry less shoulder-girdle muscle mass relative to the overhead and carrying demands of the same job — which means an identical task eats up a bigger slice of available capacity.
Hormonal fluctuation. Research on tendon and ligament compliance suggests estrogen and relaxin shifts across the menstrual cycle — and especially postpartum — can temporarily change how "stiff" or "give-y" connective tissue is. It's one more reason training should flex with your body rather than fight it.
Posture built into the job. Jump seats, cramped galleys, laptops, car seats — all of it pulls the shoulder blade into a position that shrinks the space your cuff tendons move through, before you've even lifted anything.
History repeats. Once a shoulder has had a cuff issue, both the tissue and the movement patterns around it change — which is exactly why "just strengthen it" is rarely as simple as it sounds, and why this is a whole series and not one Instagram caption.
Signs your shoulder is asking for help
Pain reaching overhead or behind your back that hasn't eased after a couple of weeks
Night pain — especially when lying on that side
feeling of weakness or "giving way" when lifting, not just soreness
Catching, clicking, or grinding that comes with pain, not just noise
Pain that radiates down past the elbow
Any of the above starting after a fall, a hard pull, or a specific incident
A MESSAGE FROM DR. JACKIE
If you've had imaging and something showed up, tendinopathy, a partial tear, wear and tear, take a breath.
Tissue changes are extremely common as we age and stay active, and plenty of people with these exact findings are strong and pain-free.
A finding on a scan is information, not a life sentence. The goal of this series isn't to make you afraid of your shoulder, it's to help you train the shoulder you actually have, in a way that doesn't continue to promote tissue and joint irritation.
Now that you understand a little bit more about your shoulder. Check out this FREE guide | Shoulder Recovery.
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