The short version.
Frozen shoulder, known medically as adhesive capsulitis, is when the capsule of soft tissue around the shoulder becomes inflamed and tight, causing pain that then turns into stubborn stiffness. Recovery is usually slow and measured in many months. TECAR is an adjunct, a helper used alongside physiotherapy, and its main value is making gentle movement more comfortable rather than dramatically speeding things up.
What frozen shoulder actually is.
The shoulder joint sits inside a wrapper of soft tissue called the capsule. In frozen shoulder, the medical name for which is adhesive capsulitis, this capsule becomes inflamed and gradually tightens and thickens. First it tends to hurt, often quite a lot, and then it becomes progressively stiff, so the shoulder loses its normal range of movement and everyday actions like reaching behind your back or up to a shelf become hard.
It often follows a recognisable pattern, usually described in three overlapping phases. The phases blur into one another rather than switching cleanly, and each one can last a long time.
- Freezing, the painful stage. Pain builds and the shoulder slowly starts to stiffen. This is often the most uncomfortable part.
- Frozen, the stiff stage. The pain often eases somewhat, but the shoulder stays tight and hard to move. This is usually where movement work becomes the main task.
- Thawing, the recovery stage. Movement gradually returns over time, often slowly, as the capsule settles and loosens.
The heat-then-move approach.
The general idea behind using TECAR for a stiff shoulder is simple. Warm tissue tends to be more pliable, meaning it stretches and moves a little more easily than cold, guarded tissue. TECAR uses a radiofrequency current at around 500 kHz to create a deep, comfortable warmth inside the muscle and joint tissue, deeper than a hot pack on the skin can reach. The aim is to make the shoulder feel a bit looser and more comfortable in the moment.
That comfort is the point. During the frozen, stiff stage the hard part is often simply tolerating the gentle stretching and range-of-motion exercise that recovery needs. If the warmth makes the shoulder feel more willing to move, the gentle mobilisation, which means hands-on coaxing of the joint through its available range, and the home exercises both become easier to do and easier to keep up. So a session often warms the area first, then moves it, while the warmth is helping.
Medstar Sport Physio and Health is the only clinic in the Metro Vancouver area offering TECAR, and we use it as one tool within a full plan of physiotherapy for the shoulder. How that warmth is delivered, through what is called capacitive or resistive mode, is explained on the capacitive versus resistive mode page.
An honest word on timelines.
It would be misleading to suggest any treatment dramatically shortens frozen shoulder. It is a slow condition by nature, often running over many months and sometimes a couple of years from start to finish. The mainstay of care is patience combined with consistent, gentle movement kept up over time. There is no shortcut around that.
TECAR does not change that basic truth. What it can do is make the day-to-day movement work more comfortable, so you are more able to keep doing it. A treatment that helps you stick with your gentle stretches has real value, because steady movement is what carries you through to the thawing stage. We would rather set that expectation plainly than promise a fast result we cannot deliver. For general health information you can also read HealthLinkBC. If your shoulder problem turns out to be tendon or rotator cuff related rather than a true frozen shoulder, see our page on rotator cuff problems instead.
When to get it checked first.
- Shoulder stiffness that began after a fall or other trauma, which should be assessed promptly to rule out a fracture or other injury.
- A shoulder that cannot move at all after an injury, which needs prompt assessment rather than waiting it out.
- Signs of infection such as a hot, red, swollen shoulder, or feeling feverish and unwell, which should be looked at without delay.
- Shoulder pain that comes with chest symptoms. Chest pain or difficulty breathing is a medical emergency. Call 911 or go to Lions Gate Hospital in North Vancouver straight away.
The practical next step.
If your shoulder has become painful and stiff, the sensible first move is a physiotherapy assessment. In British Columbia you do not need a doctor's referral to see a physiotherapist, so you can arrange it yourself. The physiotherapist will examine the shoulder, work out which stage you are in, and tell you honestly whether TECAR fits your plan or whether other approaches suit you better. You can book online through our Jane App page or call the clinic on (604) 988-5411. We are at 1325 Marine Drive in North Vancouver. To check whether TECAR is likely to suit your situation, see who should try TECAR.
Common questions.
Will TECAR cure my frozen shoulder faster?+
No honest answer can promise that. Frozen shoulder usually settles slowly over many months and sometimes longer, and nothing reliably makes that timeline much shorter. TECAR is an adjunct, which means a helper that sits inside a wider physiotherapy plan. The deep warmth can make the shoulder more comfortable and easier to move during a session, so the gentle movement work that recovery depends on becomes more tolerable. That is its role, not a quick fix.
Does TECAR hurt when the shoulder is already so stiff and sore?+
It should not. TECAR uses a radiofrequency current at around 500 kHz to create a comfortable, deep warmth in the tissue. Most people describe it as a pleasant warming feeling rather than anything sharp. The physiotherapist keeps the warmth within a comfortable range and checks in with you throughout. If anything feels uncomfortable, tell them and they will adjust it.
When in my recovery is TECAR most useful?+
It tends to fit best during the stiff, frozen middle stage, when the worst of the early pain has eased but the shoulder is hard to move. At that point the warmth can help the tissue feel more pliable so gentle stretching and range-of-motion work are easier. In the very early, intensely painful phase the focus is usually on settling symptoms rather than adding warmth, so the physiotherapist decides the timing case by case.
Do I need a doctor's referral first?+
No. In British Columbia you can book a physiotherapy assessment directly, without a referral. The physiotherapist will examine your shoulder, talk through your history, and check for anything that needs a doctor's review first. If TECAR suits your plan it is added in. If it does not, they use other parts of the physiotherapy toolkit instead.
What actually makes a frozen shoulder get better?+
Mostly time and consistent, gentle movement. The mainstay of care is patience plus steady range-of-motion and stretching work kept up over months. Hands-on physiotherapy and, where it fits, TECAR can make that movement work more comfortable to do, but they support the process rather than replace it. The shoulder improves because you keep moving it within sensible limits, not because of any single treatment.
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The only TECAR on the North Shore