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Achilles tendinopathy: understanding your ankle pain and getting back to activity

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What is Achilles tendinopathy?

The anatomy of the Achilles tendon

The Achilles tendon is the strongest tendon in the human body. It connects the calf muscles (gastrocnemius and soleus) to the heel (calcaneus) and drives propulsion with every step, stride and jump. Mid-portion tendinopathy is distinguished from insertional tendinopathy, closer to the heel, which is managed slightly differently.

Why does this tendon become painful?

Pain appears when the Achilles tendon is repeatedly loaded beyond its capacity to adapt, particularly during running and jumping activities. A training volume increased too quickly, a stiff calf, or a change of terrain or shoes are the most common causes of tendon overload.

Zone du tendon d'Achille dans l'application HOPP
Physio insight: we talk about “tendinopathy” rather than “tendinitis” because it’s most often the tendon’s reaction to repeated mechanical overload, which needs progressive strengthening work rather than simple rest.

Which sports contribute to Achilles tendinopathy?

All sports involving repeated impact and propulsion place particular strain on this tendon:

  • Running, especially on hard surfaces or uphill
  • Football and basketball (jumping, sprinting)
  • Tennis and racquet sports
  • Hiking and trail running
  • Dance
  • Volleyball
Physio tip: test your pain by rising onto your toes, then slowly lowering down on one leg: if the pain is clearly located at the Achilles tendon, that’s a good indicator of tendinopathy.

Treating Achilles tendinopathy in rehab with a sports physio

The goal of treatment is to progressively strengthen the Achilles tendon to restore its capacity to absorb load, particularly through eccentric training, which is well documented scientifically for this condition.

  1. 1Reducing pain and managing load
  2. 2Ankle mobility
  3. 3Isometric strengthening
  4. 4Progressive concentric strengthening
  5. 5Eccentric strengthening
  6. 6Ankle proprioceptive work
  7. 7Correcting movement and footing
  8. 8Strengthening under sport-specific load
  9. 9Progressive return to running
  10. 10Return to competition

Why the physio’s initial assessment matters

During the initial assessment, the physiotherapist aims to precisely locate the pain (mid-tendon or heel insertion), identify the movements that reproduce it, and assess any recent change in training volume or terrain.

“It’s not that the tendon is fragile — it’s the load that needs to be better dosed and distributed.”

Eccentric strengthening, the cornerstone of treatment

Eccentric calf strengthening, particularly slow single-leg heel drops, is the most scientifically documented protocol for Achilles tendinopathy. It’s complemented by broader work on the posterior chain and ankle stability.

In brief

  • Eccentric calf strengthening
  • Broader work on the posterior chain
  • Progressive correction of running load
  • Gradual return: mobility, then load, then sport
Exercice de mobilité guidé dans l'application HOPP

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Should you rest or keep playing sport?

Complete rest generally isn’t necessary and isn’t the most effective solution. It’s better to temporarily adjust the running or jumping volume that clearly reproduces the pain, while starting eccentric strengthening as soon as possible.

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When should you see a specialist for Achilles tendinopathy?

If the pain persists for more than four to six weeks despite adjusting your activities and following a well-run strengthening programme, or if you feel a “snap” suggestive of a rupture, a medical opinion is recommended.

The HOPP care programmes to treat your Achilles tendinopathy and get back to sport

This tendinopathy requires rigorous, progressive eccentric strengthening. HOPP offers you a precise exercise programme, allowing you to get back to your activities as quickly as possible.

Gentle calf stretches, adapted depending on whether the tendinopathy is insertional or mid-portion.
Ankle dorsiflexion mobility work to optimise load absorption.
Progressive calf strengthening, with an eccentric protocol specific to the Achilles tendon.
A progressive, guided return to running volume and impact.

The programme runs from 3 to 9 weeks depending on the injury and ends with a reconditioning phase allowing a return to competition in the best possible conditions. Each programme is designed by the HOPP team, made up of two sports physiotherapists who are experts in assessing and treating athletes. You’ll also find theoretical content throughout your progression, so you master every aspect of your recovery and can adjust your treatment independently. If needed, our team of physiotherapists is on hand to support you.

Essential

FROM INJURY TO
BACK TO YOUR ACTIVITIES

59€

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“AT YOUR OWN PACE WITH
DAILY ADAPTATION”

  • 100% of the treatment programme
  • Daily personalisation
  • Flexibility / Mobility
  • Strengthening
  • Proprioception
  • Progress tracking
  • Return-to-running programme
  • Theoretical content included
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  • 100% of the treatment programme
  • Daily personalisation
  • Flexibility / Mobility, Strengthening, Proprioception
  • Progress tracking
  • Return-to-running programme
  • Theoretical content included
  • + 4-week return-to-play plan with 6 difficulty levels
  • + 2 video calls with an expert sports physio / return check-up
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A programme that adapts to you every day

Every day, how you feel (RPE) is factored in to automatically adjust the rest of your programme: more load if all is well, a bit less if your ankle is complaining. This daily personalisation is what makes the difference compared to a fixed, paper-based programme.

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Questionnaire de ressenti post-effort (RPE) dans l'application HOPP

F.A.Q

Does the HOPP programme replace a medical consultation?

No. HOPP is a support and rehab tool designed by sports physiotherapists, but it doesn’t replace a doctor’s opinion. If in doubt, or if the pain persists, see a health professional.

Is the programme suited to all sporting levels?

Yes. Every programme is personalised to your sport, your level and how you feel each day, whether you’re a recreational athlete or preparing for competition.

Can I keep running with Achilles tendinopathy?

In most cases, yes, by temporarily adjusting your volume and terrain, while starting eccentric strengthening alongside it.

How long does it take to heal?

This tendinopathy can take longer to heal than others, with gradual improvement over several weeks to a few months depending on how long the symptoms have been present.

Is there a risk of rupture?

The risk mainly exists with a long-standing, neglected tendinopathy combined with a sudden intense effort. That’s why it’s important to address the pain as soon as it appears rather than letting it settle in.

Thibault Vignais, sports physio

Written by Thibault Vignais

Sports physio and osteopath, HOPP co-founder

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