Carol caught me cheating

THE 30-SECOND VERSION

The most prescribed shoulder exercise is a small turn against a band. Tuck a rolled towel under your elbow, or your body will cheat. Give it three months.

TODAY’S MOVE

A small turn, done honestly

Back to the shoulders. In July we worked on motion. Today we build the strength behind it.

I had a rubber exercise band looped round a door handle for about three weeks, and I was very pleased with myself. Every evening I would stand there and pull, feeling productive. Then Carol walked past, watched me for a moment, and said I looked like a man swatting a fly.

She was right, and it was worse than she knew. I was swinging my whole torso and letting my elbow wander out from my side. The band was moving. My shoulder was doing almost nothing. Three weeks of honest effort, going nowhere.

The fix cost nothing and fits in a drawer. A rolled hand towel. Here is the move done properly, and why that towel matters more than the band does.

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Therapists have you tuck a rolled towel under your elbow for this exercise. What is it for?

Tap your guess. A ready-to-send reply opens. Just press send and we’ll tell you if you got it right.

It stops the elbow drifting, so the shoulder works

To pad a bony elbow

To keep the joint warm

Set up with the towel

Anchor a light exercise band at about elbow height, in a door or round a post. Stand side on, with the working arm furthest from the anchor. Roll a hand towel and tuck it between your elbow and your ribs.

ⓘ Start with the lightest band you own. This exercise is not about load.

Bend the elbow to a right angle

Hold the band with that hand, elbow bent square, forearm across your stomach. Your upper arm stays pinned to your side, squeezing the towel. That towel must not fall out at any point.

ⓘ Easier version: sit in a chair, which makes it much harder to swing your body.

Turn the forearm outward

Keeping the elbow glued in place, swing your forearm out away from your belly, like a gate opening. Only a short way, maybe a foot. Take two seconds. Your chest should not turn at all.

ⓘ If your torso twists or the towel drops, the band is too strong. Go lighter.

Return slowly, and repeat

Let the band draw your hand back over three seconds, under control. Do 10, rest, and do 10 more. Three days a week is plenty, on both sides.

ⓘ This is a slow, quiet exercise. If it looks impressive, you are doing it wrong.

✓✓ A working feeling deep in the back of the shoulder is exactly right. Sharp pain at the top or front of the shoulder is not. Lighten the band, shorten the range, and build slowly.

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Watch the brief video explanation

THE WHY

Small muscles, and why the body hides them

The rotator cuff is four small muscles wrapped around the ball of your shoulder joint. Their job is not to lift heavy things. It is to hold the ball snug in its shallow socket while the big muscles do the hauling. Think of them as the crew keeping the mast steady while the sails take the wind.

Because they are small, your body is very good at avoiding them. Given any chance, the big muscles of your chest and back will step in and do the job instead. That is exactly what I was doing with the door handle. My torso swung, my elbow drifted, and four muscles I was trying to train sat the whole thing out.

The towel puts a stop to that. With your elbow pinned to your ribs, there is no way to swing, no way to drift, and no way to borrow from anywhere else. All that is left is the small turn, which the cuff has to produce on its own. In other words, the towel is not comfort. It is the referee.

Why this particular turn

When researchers looked at what therapists actually prescribe, this outward turn showed up in seven studies out of ten. It is the most commonly given shoulder exercise there is. Measurements of muscle activity show why. Of all the standard moves, this one lights up the muscle at the back of the cuff more than any other.

Be patient with it

One warning so you do not give up early. In a study following people through a progressive shoulder program, pain eased inside six weeks, but the strength gains mostly turned up between six and twelve weeks. This is a slow business. Judge it at three months, not three weeks.

⚠ WHEN TO STOP

When to stop and call your doctor

These are uncommon, but they are signals to get checked rather than work through:

● An arm you genuinely cannot lift, or weakness that came on suddenly, especially after a fall.

● A shoulder that is hot, red, and swollen, or a fever alongside the pain.

● Shoulder pain with chest tightness, sweating, or shortness of breath. That needs emergency care.

When in doubt, get it checked. PainFree adds to your doctor’s care. It never replaces it.

THIS WEEK’S QUICK WINS

Three ways to make it count

🥋 Go lighter than feels respectable

The lightest band that still makes the last few repeats feel like work is the right one. A band you have to fight is a band your big muscles will take over.

Free • Lighter is usually better here

🪨 Do it in front of a mirror once

Watch your chest. If it rotates with the arm, you are swinging rather than turning. One look in the mirror taught me more than three weeks of practice had.

One check • Watch the chest, not the hand

📅 Mark the calendar three months out

Strength arrives slowly here, mostly after the six-week mark. Decide now that you will judge this in twelve weeks, so you are not tempted to quit at four.

12 weeks • Decide the deadline in advance

RESEARCH BRIEF

The most prescribed move, and its honest size

When researchers reviewed what shoulder rehabilitation programs actually contain, this outward turn against a band appeared in seven studies out of ten, more than any other exercise, and muscle-activity recordings show it reaches the back of the rotator cuff better than the alternatives. A study following patients through a progressive shoulder program found pain at rest, at night, and during activity all fell within six weeks, with strength gains arriving mostly between six and twelve weeks. Now the honest part. A 2025 review pooling trials in middle-aged and older adults found the average benefit of shoulder exercise was small, and the studies varied a great deal. So this is worth doing and worth sticking with, but do not expect a transformation.

7 of 10

rehab studies included this exercise, more than any other

6 to 12

weeks is when the strength gains mostly showed up

Small

is the honest average effect in older adults, with wide variation

A cheap band, a rolled towel, and patience. Modest gains, but they are the gains this problem actually answers to.

MOVEMENT OF THE WEEK

The shoulder blade squeeze

Your arm works off the shoulder blade, and the blade works off your back. This one steadies the base, and it also turns up often in the rehab programs.

1.	Sit or stand tall, arms hanging loose at your sides.

2.	Draw both shoulder blades gently back and down, as if tucking them into your back pockets.

3.	Hold 5 seconds without hunching your shoulders up. Release. Repeat 10 times.

HOW TO PROGRESS

Starting out

Seated, 10 squeezes

Building

Standing, 10-second holds

Stronger

Add a light band pulled apart

Keep the shoulders down, not shrugged toward your ears. Gentle is the whole idea.

WHAT THE EVIDENCE SAYS

Three ways to work a sore shoulder, graded

Progressive cuff and blade work

The sensible backbone, and nearly free. Pain tends to ease first, strength later. Average gains are modest, so give it three months before judging.

A few sessions with a therapist

Worth more than most people expect, precisely because form is so easy to get wrong. Even two or three visits to be watched can save you my wasted three weeks.

Heavy weights, chasing progress

The wrong instinct for this job. Heavy loads recruit the big muscles and let the cuff hide. Light and strict beats heavy and sloppy every time.

Check with a doctor or physical therapist first, especially after shoulder surgery, a fall, or if you cannot lift the arm.

WORTH KNOWING

4 muscles

The rotator cuff is not one thing. It is four small muscles wrapping the joint from front, back, and above, each pulling in a different direction to keep the ball centered. Today’s turn reaches mainly the one at the back, which is why a full program eventually includes more than one move.

Basic shoulder anatomy.

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