Ankle & Foot Conditions

Achilles Tendonitis

Pain at the Back of Your Heel

Achilles pain rarely sorts itself out with rest alone. Finding out why the tendon became irritated — and addressing it properly — is the only way to recover for good.

The Achilles tendon is the largest and strongest tendon in the body — yet it is also one of the most commonly injured, particularly in runners, dancers, and active individuals. At Alleviate Physiotherapy, we treat Achilles Tendonitis by identifying the root cause of tendon stress — not just managing symptoms.

What is Achilles Tendonitis?

Achilles Tendonitis is an overuse injury affecting the tendon that connects your calf muscles to the heel bone. Despite the common name, clinical research identifies two distinct conditions that clinicians often group under this umbrella:

Achilles Paratenonitis

Inflammation of the outer sheath (paratenon) surrounding the tendon. It typically produces sharp, burning pain during activity and may involve localised fluid accumulation. A clinical assessment is necessary to distinguish this from tendinosis — both conditions look and feel similar but respond to very different treatment approaches.

Achilles Tendinosis

A more chronic condition involving degeneration of the tendon tissue itself. It is often silent in early stages — which makes it particularly dangerous. People tend to push through discomfort until the tendon is significantly compromised. Early physiotherapy assessment catches and manages this before it progresses.

The Diagnosis Shapes the Treatment

These two conditions share overlapping symptoms but require different treatment priorities and progressions. Self-diagnosing based on pain location alone is unreliable. Starting the wrong exercise programme at the wrong time can worsen the tendon. A physiotherapist uses hands-on clinical tests and movement analysis to identify exactly what is happening before any treatment begins.

Why Did the Tendon Become Painful?

A sudden change in training load or activity level is the most common trigger. The tendon does not fail all at once — it accumulates stress until it can no longer cope. Contributing factors include:

Training Errors

A rapid increase in mileage or intensity, returning to sport after a long break, or running on uneven terrain. The tendon needs time to adapt to new loads — when that time is cut short, irritation follows.

Poor Footwear

Shoes with inadequate hindfoot support, or running shoes beyond 300–500 km of use, lose the cushioning and structure that protect the tendon. The tendon then compensates — and eventually protests.

Biomechanical Issues

Functional overpronation — where the foot rolls excessively inward — reduces blood flow to the tendon through a "wringing" mechanism, making it more vulnerable to injury with every step.

Tight or Weak Calf Muscles

A restricted gastrocsoleus complex places additional strain on the Achilles. Weak calf muscles cannot absorb load efficiently. Both problems transfer excess stress directly to the tendon.

Insertional vs. Mid-Portion: Location Matters

Mid-portion tendinopathy affects the tendon 2–6 cm above the heel — the zone with the lowest natural blood supply and the slowest healing rate. Insertional tendinopathy affects the attachment point at the heel bone. Each type has a different pain pattern and a different treatment approach. Your physiotherapist identifies which is present during your assessment.

90–95%

of patients recover fully with conservative, non-operative physiotherapy treatment

6–12 mo

is the typical recovery window — but patients make meaningful progress every step of the way

↑ Risk

increases significantly when training load rises too quickly without adequate recovery time

Signs You Shouldn't Ignore

Achilles tendon pain develops gradually — which is exactly why people underestimate it. Any of the following warrants a physiotherapy assessment rather than continued waiting:

Morning Pain or Stiffness: Sharp or stiff pain with the first few steps out of bed, easing after a few minutes of walking.
Pain During or After Activity: Discomfort that starts during a run or workout, or that persists after stopping.
Tenderness at the Back of the Heel: Sensitivity to touch in the area just above the heel bone — often localised to a specific point on the tendon.
Visible Thickening or Swelling: A noticeable lump, fullness, or change in the tendon's contour.
Stiffness After Rest: Tightness that returns after sitting, driving, or overnight — a hallmark of tendon irritation.
Recurring Episodes: Pain that settles with rest but returns as soon as activity resumes — a clear sign the underlying cause has not resolved.

Many Causes, One Location — Why Self-Diagnosis Falls Short

Morton's Neuroma, synovitis, a stress fracture, and fat pad atrophy can all produce pain in the same area of the foot. The distinction between them is not always obvious. Treating one condition when another is actually present can delay your recovery significantly. A physiotherapist uses clinical tests, movement analysis, and a detailed case history to differentiate between these causes before settling on a treatment direction.

How Can Physiotherapy Help with Achilles Tendonitis?

Many people spend weeks self-testing — pressing on the tendon, tracking whether pain moves, searching symptoms online. The problem is that tendon injuries present differently from person to person. What feels like mild discomfort can mask significant tissue changes underneath.

A physiotherapist's assessment goes beyond symptom recognition. It examines movement patterns, load capacity, muscle balance, and biomechanics to understand why the tendon is struggling — not just where it hurts. That distinction shapes the entire treatment plan.

🦶
Clinical Assessment

Biomechanical and movement analysis to identify the root cause of tendon stress

🔍
Imaging (if needed)

Ultrasound or MRI to confirm tendon integrity and rule out significant structural damage

🎯
Targeted Treatment

A staged plan addressing the root cause — not just symptom management

How Can Physiotherapy Help with Achilles Tendonitis?

The golden rule of Achilles recovery: sequence matters as much as content. The same exercise that accelerates healing at the right stage can set progress back by weeks if introduced too early. A physiotherapist-led approach — rather than a generic protocol — makes the difference between a full recovery and a recurring problem.

At Alleviate Physiotherapy, we follow our signature three-step approach:

Assess

A thorough clinical and biomechanical examination to understand why your tendon is under stress — not just where it hurts. This shapes everything that follows.

Alleviate

Hands-on treatment, load management, and targeted modalities — applied in the right order to reduce pain and create the right conditions for tissue healing.

Achieve

A carefully progressed strengthening and return-to-sport plan — timed to your tendon's actual recovery, not a generic timeline.

Treatment Approaches — Guided by Your Therapist

The following are evidence-based tools your physiotherapist may draw from. Which ones apply, in what combination, and at what stage is a clinical decision — based on your assessment findings, your response to treatment, and how your tendon progresses week by week.

Step 1: Reducing Load and Calming the Tendon

Load Management & Activity Modification

Before any exercise begins, your therapist determines the right activity level for your current stage of injury. This is not simply "rest more" — it is a calibrated reduction in tendon load that keeps you moving without aggravating the tissue. Cross-training options such as swimming or cycling may maintain fitness during this phase.

Calf Flexibility Work

Tight calf muscles are among the most common contributors to Achilles overload. Your therapist prescribes specific stretches — targeting both the gastrocnemius and the deeper soleus — at the right intensity for your presentation. Aggressive stretching in the acute phase can be counterproductive; your therapist guides the timing carefully.

Step 2: Rebuilding Tendon Strength and Resilience

Eccentric & Progressive Tendon Loading

Controlled tendon loading — such as slow eccentric heel exercises — is the gold standard for stimulating tissue remodelling and building resilience. Clinicians introduce this only once sufficient inflammation has settled, then progress it gradually based on your response. Introducing it too early or advancing too quickly is among the most common reasons patients plateau.

Manual Therapy

Hands-on techniques including soft tissue release, Maitland joint mobilisation, and Mobilisation with Movement (MWM) improve calf and ankle mobility, reduce muscular tension, and optimise load distribution through the tendon with each step. Your therapist selects techniques appropriate to each stage of recovery.

Electrotherapy & Modalities

Ultrasound therapy, TENS, or shockwave therapy may support pain reduction and tissue healing at specific stages. These serve as adjuncts to the core treatment programme — not substitutes for it. Your therapist selects modalities based on the stage and nature of your injury.

Step 3: Return to Sport and Long-Term Prevention

Biomechanical Correction & Footwear Review

Addressing the movement and footwear factors that contributed to the injury is essential to lasting recovery. Your therapist may recommend orthotics, a footwear change, or a running technique modification — all based on your specific biomechanical assessment findings, not a generic checklist.

Sport-Specific Rehabilitation

A structured return-to-activity plan progresses from basic loading to full sport-specific demands. Each stage requires sign-off from your therapist based on your tendon's response. Rushing this phase is the most common reason Achilles problems recur.

⚠ Cortisone Injections Are Not Appropriate for the Achilles Tendon

Cortisone injections should never go in or around the Achilles tendon. While they may mask pain in the short term, they significantly weaken the tendon structure and substantially increase the risk of a complete rupture. If a cortisone injection has been suggested to you, speak with one of our physiotherapists first about evidence-based alternatives that support — rather than compromise — tendon integrity.

When Should You See a Physiotherapist?

Sooner than most people think. Achilles pain is commonly dismissed as something that will sort itself out with rest. But the tendon is a slow-healing structure. Without understanding why it became irritated, rest alone rarely solves the problem — the same stresses return when activity resumes.

Book an assessment promptly if any of the following apply:

Pain has persisted for more than two weeks despite relative rest.
You have started altering your gait or footwear to avoid discomfort.
Swelling, warmth, or a visible change in the shape of the tendon or heel has developed.
Pain keeps returning after periods of rest — even when it feels fine short-term.
You have a race, return-to-sport deadline, or upcoming event you need to prepare for safely.
You have had Achilles problems before and they keep coming back.

🚨 A Sudden "Pop" in the Back of the Leg — Seek Urgent Care Immediately

A sudden sharp pain or the sensation of being struck in the back of the leg during activity can be a sign of a complete Achilles rupture. Do not attempt to self-assess or walk it off. This is a serious injury requiring immediate medical evaluation and imaging. Go to an emergency room or urgent care clinic straight away. Do not delay.

An Achilles Problem That Has Been "Just Rested" for Months Is Not Being Managed

Rest reduces symptoms — it does not resolve the underlying cause. Without addressing why the tendon became overloaded in the first place, returning to activity simply restarts the cycle. The longer those patterns persist, the more established they become and the harder recovery gets. If Achilles pain has been limiting you without a clear treatment plan, now is the time to change that.

Your Achilles Is Telling You Something — Find Out What

Achilles pain does not resolve through generic exercises or trial and error. Our physiotherapists will assess your tendon thoroughly, identify exactly what is driving the problem, and build a treatment plan around your recovery — not a standard protocol.

Conveniently located across four GTA locations — Etobicoke, Mississauga, Clarkson/Oakville, and Islington.