What it is

Degenerative tendinopathy describes age-related tendon changes with a reduced capacity to handle load. Common sites around the ankle and foot include the Achilles, peroneal tendons, and posterior tibial tendon.

Pain rises with spikes in activity and settles with measured loading and stronger tissue.

What happens when it occurs

Collagen fibres become disorganised, and the tendon thickens. The area becomes sensitive to rapid load. Consistent, heavy, slow loading, and patient progress restore capacity.

Common causes and risk factors

  • Spikes in running or walking volume, speed, or hills
  • Reduced calf strength and ankle stiffness
  • Higher body weight, metabolic health factors, and poor sleep
  • Previous tendon pain or tears

Who is most affected

Adults in their middle years who remain active through work or sports. Runners and field or court athletes feature strongly.

Typical symptoms

  • Morning stiffness and warm-up pain that eases during activity and returns later
  • Localised tendon tenderness and thickening
  • Pain with hopping or a fast change of direction

When to seek care

If pain limits activity beyond two weeks, if night pain appears, or if a sharp, popping sensation is felt.

How we diagnose

History and clinical tests for load tolerance and strength. Ultrasound or MRI is used when a tear is suspected or when progress stalls despite a programme.

Management

  • Isometrics for pain relief in irritable phases
  • Heavy, slow resistance for calves and the involved tendon
  • Footwear and terrain choices that match the stage of recovery
  • Plyometric and change of direction drills when strength targets are met
  • Adjuncts are considered on a case-by-case basis, including shockwave in stubborn cases

Rehabilitation milestones

Phase 1 weeks 0 to 2: pain control, isometrics, gentle range.

Phase 2 weeks 2 to 8: heavy slow resistance and balance, walking plan.

Phase 3 weeks 8 to 16: plyometric preparation, graded running and sport drills.

Phase 4 months 4 to 6: performance and workload tolerance.

Readiness to progress

  • Morning stiffness declining
  • Single leg calf raises 25 reps and strength within 90 per cent
  • Hop tests without next-day flare

Long-term care

  • Keep a year-round strength habit
  • Plan weekly changes to distance, hills, or speed conservatively
  • Rotate shoes and match them to the terrain

Australia snapshot

  • Very common among recreational runners and workers on hard floors
  • Achilles and peroneal tendons feature strongly in Australian sports clinics
  • Access to shockwave therapy and supervised strength training is broad in metropolitan areas

Latest insights

Tendons respond to load. Build capacity through slow, steady work and progress in small steps.

Pain usually lags behind tissue change. Use next-day comfort and strength targets to steer decisions.

Frequently Asked Questions

Gentle range is acceptable. Do not hang on long, painful stretches early. Prioritise strength first.

Heavy slow resistance is as effective and often better tolerated. Eccentrics are used when appropriate.

Only when a tear is suspected or progress stalls. Many findings do not match pain levels.

They may provide short-term relief in selected cases. They do not rebuild the tendon. Plan them around your loading programme.

Often, yes, at easy paces on flat ground. Progress distance and speed when strength targets are met.

Choose comfortable shoes and avoid abrupt terrain changes while the tendon is irritable.

A sudden pop, marked weakness, or a calf that feels different needs urgent review.