Shoulder Impingement

They're not cleanly separable. Subacromial pain syndrome, the more accurate label for what's usually called impingement, already includes rotator cuff tendinopathy and partial rotator cuff tears within it ⁵. A swollen, irritated tendon and a partially torn one can produce a very similar arc of pain overhead.

Where they tend to diverge is weakness. Pain that stops you lifting is different from an arm that genuinely won't hold a weight. And pain that started at a clear moment (a fall, a heavy lift, a sudden wrench) points somewhere different from pain that crept in over months of overhead work; the Rotator Cuff Tear page covers that side of it. If your main problem is stiffness rather than pain (the shoulder won't go where you send it, particularly turning outwards), Frozen Shoulder is a different picture again. Our rotator cuff exercises guide shows a safe progression.

This is the case for an assessment rather than a label: imaging is only helpful in certain situations, and shoulder problems are often diagnosed on examination alone ². What you get from it is a clearer picture of which movements and loads to change, which is more use than a better name.

A physio or GP can usually work this out without a scan ^{1 2}. After asking about your symptoms, we press around the shoulder to find tender spots, ask you to move your arm in several directions and test your arm strength ⁸. If pain stops you lifting the arm yourself, we may gently move it for you to judge how stiff the shoulder is ⁸. We may also check your neck, in case a pinched nerve there is behind the pain ⁸.

An X-ray is usually normal with this kind of shoulder pain ⁸. An MRI or ultrasound gives a better view of the tendons and the tissue around them, and can show inflammation or a tear ⁸.

The evidence points away from rushing into a procedure and towards a structured, individualised plan. In practice:

An impinged shoulder is treated along The Well Motion Recovery Path™. What moves you up a phase is what the arm can do overhead, not how many weeks have passed.

• Reset: the early stretch, while the shoulder is still irritable. Load modification and ice ¹, with Manual Therapy where muscle tension or restricted movement is getting in the way. Expect the catch on lifting to still be there, and nights to be slow to improve. We move you on once everyday reaching and dressing no longer leave the pain building.
• Rebuild: the longest phase. A graded programme from Exercise Prescription & Conditioning, working the rotator cuff ⁸ and the muscles that steady the shoulder blade ⁵. Expect some soreness after sessions, and progress that comes in steps. We move you on when the shoulder lifts and carries what your daily tasks ask of it.
• Return: back to whatever set it off: overhead work, swimming, tennis, the top shelf. We test those movements at the load and repetition you need. You leave with a programme to keep up and a plan for breaks during arms-raised jobs ².

How long it usually takes. Shoulder impingement usually gets better in a few weeks or months ¹. That range comes from patient guidance, not from a study that tracked recovery, and the research behind this page gives nothing more precise. If an injection or surgery is being considered, the doctor providing it sets that part of the timeline.

Shoulder injury prevention has been trialled in sport, and the work risks have been measured. Neither body of research looked at impingement alone:

• Add a shoulder programme to your warm-up. In a trial of 660 elite handball players, teams that did shoulder strength and mobility exercises three times a week in their warm-up had a 28% lower risk of shoulder problems over the season ⁹. A review for Danish sports physios found programmes like it reduce shoulder injuries, on very low to moderate quality evidence ⁶.
• Limit work with your arms raised. Pooled studies covering more than two million workers found that working with the arms up, or under heavy shoulder load, roughly doubled the risk of a soft tissue shoulder disorder ¹⁰. Painting and construction are the usual examples ⁸. Take breaks and stretch during jobs like these ².
• Build the shoulder back up. Once pain is settling, rehab moves on to strengthening the rotator cuff (the small muscles that steady the shoulder) ⁸. Warming up before exercise and staying in good physical shape are on the standard prevention list too ².