It usually starts as a small thing. A stiff, tender spot just above the heel for the first few minutes out of bed, that eases once you get moving. You run anyway. A few weeks later the stiffness lasts longer, the tendon is sore after every run instead of just some of them, and pushing off a curb makes you wince.
That pattern is the classic presentation of Achilles tendonitis, and it is one of the most common overuse problems we see at Synergy Rehabilitation clinics across the Lower Mainland. It is also one of the most treatable — provided you stop waiting for it to settle on its own.
What Achilles tendonitis actually is
The Achilles is the thick cord connecting your calf muscles to your heel bone. It is the strongest tendon in the body, and during running it handles loads several times your body weight with every stride.
The older term “tendonitis” implies inflammation. Tissue studies of long-standing cases usually show something different: disorganised collagen, changes to the tendon’s structure, and increased blood vessel and nerve ingrowth, with little classic inflammation. That is why clinicians now more often use tendinopathy — an umbrella term covering the whole spectrum, from a freshly irritated tendon to a chronically overloaded one (StatPearls, NIH Bookshelf).
The distinction matters, because it changes what helps. If the problem is not primarily inflammation, then rest and anti-inflammatories are not the answer. Loading the tendon properly is.
Symptoms: how to recognise it
- Morning stiffness in the tendon or heel that eases over 10 to 30 minutes. This is the single most characteristic sign.
- Localised tenderness when you pinch the tendon between finger and thumb, usually 2 to 6 cm above the heel bone.
- Pain that warms up during activity, then returns worse a few hours later or the next morning.
- Thickening or a palpable nodule along the tendon in longer-standing cases.
- Difficulty with single-leg heel raises, hills, stairs, or push-off.
One point of confusion worth clearing up: if the sharpest pain is underneath the heel rather than behind it, and it bites hardest on the first few steps out of bed, you may be dealing with plantar fasciitis instead. The two conditions share the morning-pain pattern but sit on opposite sides of the heel and are managed differently.
Midportion versus insertional
Where it hurts changes the plan. Midportion tendinopathy sits a few centimetres above the heel bone and is the more common of the two. Insertional tendinopathy sits right at the back of the heel where the tendon attaches, and it is far more sensitive to compression — which is why deep stretching, dropping the heel below a step, and stiff-backed shoes often make insertional cases worse while helping midportion cases. A physiotherapist can tell the two apart in a few minutes, and getting it wrong is a common reason home programs stall.
Why it flares up in August around here
Achilles tendinopathy is overwhelmingly a load-management problem: the tendon’s capacity has not kept pace with what it is being asked to do. Late summer in the Lower Mainland lines up several of those triggers at once.
Fall race training blocks ramp up in August, so weekly mileage jumps. The North Shore trails and the Coquitlam and Surrey trail networks add sustained climbing, which increases calf and Achilles demand. People switch from cushioned trainers to lighter or lower-drop shoes for race day. Others come off a sedentary stretch and return to sport all at once. Any of these on their own is manageable. Two or three together in the same fortnight is where tendons complain.
The scale of the problem is real. A large prospective cohort of recreational runners found roughly 5.2% developed Achilles tendinopathy over the study period, and across the literature the condition accounts for something in the range of 6% to 17% of all running injuries (Journal of Science and Medicine in Sport; StatPearls). It is not limited to runners either — court sports, jumping sports, and sudden returns to walking or hiking volume all produce the same picture.
What the evidence actually supports
Loading the tendon is the treatment
The 2024 clinical practice guideline for midportion Achilles tendinopathy, published in the Journal of Orthopaedic & Sports Physical Therapy, is unambiguous on this point: exercise is the only intervention carrying level A (strong) evidence. Everything else is adjunctive (JOSPT 2024 CPG).
A meaningful update in that revision is the move away from prescribing eccentric-only protocols. The guideline now uses the broader term tendon loading, covering isometric, concentric, eccentric, heavy slow resistance, and plyometric work, and advises loading at least three times weekly at an intensity as high as symptoms tolerate. A randomised trial directly comparing heavy slow resistance training against traditional eccentric training found both produced good, durable results (Beyer et al., American Journal of Sports Medicine).
In practice that means the specific exercise matters less than getting the dose right — enough load, often enough, progressed over months rather than weeks, with symptoms monitored rather than avoided. That is precisely the sort of programming our physiotherapy team builds and adjusts, and where active rehabilitation and kinesiology sessions are useful for people who want supervision through the progression.
Where shockwave therapy fits
Extracorporeal shockwave therapy is the adjunct with the most supportive evidence for stubborn cases. A systematic review of midportion Achilles tendinopathy found moderate-quality evidence favouring shockwave over standard care, with a pooled improvement of roughly 9 points on the VISA-A outcome scale, and noted that shockwave combined with exercise appears more effective than shockwave alone (Cureus systematic review). Other reviews have been more cautious, and protocols vary between studies.
The honest summary: shockwave therapy is worth discussing if you have been loading properly for two to three months without enough progress. It is a supplement to a loading program, never a replacement for one. The same applies to intramuscular stimulation and manual therapy for calf tightness — helpful for symptom control, not curative on their own.
Footwear, heel lifts and orthotics
A temporary heel lift reduces tensile load on the tendon and can make the early weeks tolerable, particularly for insertional cases where compression at the heel is driving symptoms. Shoes with a firm heel counter that presses directly on a sore insertion are worth swapping out for now. If your foot mechanics are contributing — significant overpronation, a rigid first ray, leg-length difference — an assessment for custom orthotics can be a reasonable part of the plan, though orthotics support the loading program rather than substitute for it.
For athletes working toward a specific return-to-sport date, our sports rehabilitation stream adds the plyometric and speed work that a tendon needs before it is genuinely race-ready.
A realistic recovery timeline
This is where expectations most often go wrong. Tendons remodel slowly.
Research using the VISA-A questionnaire — the standard 0-to-100 measure of Achilles pain and function — suggests a change of about 14 points at 12 weeks represents a genuinely meaningful improvement, and that structured loading programs commonly deliver improvements in the range of 18 to 21 points by the 12-week mark. Pilot data following patients further out reported continued gains at 6 and 12 months (progressive loading pilot study, PMC).
Translated into plain terms: expect early changes in stiffness within two to four weeks, substantial improvement over roughly three months, and full return to hard running or jumping sport often somewhere between three and six months. Cases that have been grumbling for a year take longer than cases caught at six weeks. That is the strongest argument for getting it assessed early rather than training through it — the same principle we covered in our post on how long physiotherapy takes to work.
When to get it checked sooner
Book an assessment promptly if pain has persisted beyond two to three weeks, if you cannot perform a single-leg heel raise, or if the tendon is visibly swollen. Seek urgent medical attention if you felt a sudden snap or a sensation of being kicked in the back of the ankle, heard a pop, or cannot push off at all — that pattern suggests a rupture rather than a tendinopathy and needs same-day assessment.
Frequently asked questions
Should I stop running completely?
Usually not. Complete rest lowers tendon capacity, so the problem often returns the moment you start again. Most people do better reducing volume and intensity to a level the tendon tolerates — commonly judged by pain staying at or below about 5/10 during the run and settling back to baseline by the next morning — while the loading program builds capacity underneath.
Is stretching my calf good or bad for it?
It depends on where the pain is. For midportion tendinopathy, gentle calf stretching is generally fine. For insertional tendinopathy, aggressive stretching and heel-drop exercises off a step compress the tendon against the heel bone and frequently make things worse. Get the location confirmed before adopting a stretching routine.
Do I need imaging?
Usually no. Achilles tendinopathy is diagnosed clinically from history and examination. Ultrasound or MRI is reserved for uncertain presentations, suspected partial tear or rupture, or cases that are not responding as expected. Imaging findings also correlate poorly with symptoms — plenty of pain-free tendons look abnormal on a scan.
Do I need a doctor’s referral to see a physiotherapist in BC?
No. Physiotherapy is direct-access in British Columbia, so you can book an assessment yourself. Some extended health plans request a referral for reimbursement, so it is worth checking your specific policy. We direct bill most major insurers.
Will an injection fix it faster?
Corticosteroid injection into or around the Achilles is generally avoided because of concerns about tendon weakening and rupture risk. Other injectable options exist but the evidence is mixed and none of them replace a loading program. This is a conversation to have with your physician alongside, not instead of, rehabilitation.
How do I stop it coming back next season?
Keep two or three calf-strengthening sessions in your week year-round, increase running volume gradually rather than in jumps, and change one variable at a time when you switch shoes or terrain. Prevention work is far cheaper than another three-month rehab block.
Get it assessed before the fall race season
If your Achilles has been talking to you for more than a couple of weeks, an assessment now is a much smaller commitment than rehab in November. Synergy Rehabilitation has clinics across Surrey, Langley, Delta, Burnaby and the wider Lower Mainland, we direct bill most extended health plans, and no physician referral is required in BC.
Book a physiotherapy assessment online or contact your nearest clinic to speak with our team.
This article is general information and is not medical advice. It is not a substitute for assessment by a qualified health professional. If you have sudden severe pain, an inability to push off, or a suspected tendon rupture, seek medical attention promptly.
