Shoulder Impingement (sharp 'ouch' when lifting your arm): Why Rest isn't the Answer

"Impingement" is one of the most common shoulder diagnoses out there. It's also one of the most misunderstood. The old idea was simple: something in the shoulder is pinching the rotator cuff, so you rest it, get an injection, or have surgery to make more space. The research has moved on a lot since then.

What's really going on

Most shoulder pain that gets labelled as impingement is now better described as rotator cuff-related shoulder pain. The rotator cuff is a group of four small muscles that keep the ball of the shoulder centred in the socket. When those tendons are asked to do more than they're currently able to, they get irritated. That's usually a load problem, not a "space" problem.

A large UK trial (CSAW, published in The Lancet in 2018) found that the most common impingement surgery was no better than a placebo operation. That was a big moment. It told us that for most people, the answer is building the shoulder's capacity, not cutting bits out.

Why it happens

Common causes include a sudden jump in overhead work (painting a ceiling, a new gym programme, a season of swimming), long hours at a desk with a rounded upper back, and (annoyingly) for women in their 40s and 50s - tendons that are becoming less tolerant as oestrogen falls. (Perimenopause again)!

Our approach is different. Rather than just treating the sore tendon, it looks at how the shoulder blade, upper back and surrounding muscles are working together. Often the shoulder is overloaded because something nearby isn't pulling its weight. (For example, over active traps and very tight chest muscles).

What helps

Complete rest tends to make tendons weaker and less tolerant, so the pain comes straight back when you return to normal activity (this doesn't mean - keep doing shoulder press no matter the pain)! The goal is to calm things down enough to start loading the shoulder again in a controlled way, then gradually build up. Patience at the start saves you time and money!

Easy things you can do

Tennis ball on the rotator cuff. Stand side-on to a wall with a tennis ball between the wall and the back of your shoulder blade. Gently roll around until you find a tender spot, and hold for 30–60 seconds. This area (infraspinatus) is very often tight and sore with shoulder pain.

Doorway chest stretch. Place your forearm on a door frame with the elbow at shoulder height or slightly lower. Step gently through until you feel a stretch across the front of your chest. Hold for 30 seconds each side. Keep it pain-free - this should feel like a stretch, not a pinch. (Lower your hand below shoulder until it stops pinching).

Frequently Asked Questions

Does shoulder impingement need surgery?

For most people, no. Research, including a large UK trial, has shown the most common impingement surgery is no more effective than placebo. Exercise and rehab are the first-line approach.

Should I rest a painful shoulder?

Short-term easing off aggravating activities can help, but complete rest usually weakens the tendons and makes the problem return. Controlled loading is key.

What's the difference between impingement and frozen shoulder?

With impingement, the shoulder usually still moves fully but hurts at certain points, often when lifting the arm. With frozen shoulder, movement is genuinely restricted even when someone else moves the arm for you.

Can sports massage help shoulder impingement?

It can ease pain and muscle tension around the shoulder, neck and upper back, making strengthening work easier and more comfortable. Acupuncture can also aid recovery.

Where can I get treatment for shoulder pain near Fleet?

Fleet Sports Therapy in Church Crookham, Fleet treats shoulder pain with sports massage, acupuncture and practical rehab advice.