17/06/2026
Achilles tendinopathy is not a muscle strain.
And yet… we often treat it like one.
That’s where things start to go wrong.
Muscle tissue is highly vascular.
It heals relatively quickly.
It responds fast to strength work.
Tendon tissue is different.
The Achilles has a lower blood supply.
It adapts more slowly.
Its primary job isn’t to “contract” — it’s to transmit force and store elastic energy.
When a muscle is sore, you might rest it briefly and bounce back.
When a tendon is irritated, rest alone rarely solves the problem.
Because tendons don’t just need recovery.
They need load.
Not random load.
Not aggressive load.
Appropriate, progressive tensile load.
Tendon cells respond to mechanical stress through a process called mechanotransduction — essentially, the tissue remodels in response to the forces placed upon it.
But here’s the catch.
That adaptation is slower than muscle adaptation.
You might feel stronger in 2–3 weeks.
Your tendon is still remodelling in the background.
This is why people get caught out.
Pain settles.
Strength improves.
They return to full training.
The tendon flares.
Not because it’s weak.
Because it wasn’t biologically ready.
If you treat a tendon like a muscle, you rush the timeline.
If you respect tendon physiology, you build capacity properly.
Achilles rehab isn’t about chasing fatigue.
It’s about building stiffness, load tolerance, and elastic capacity over time.
Slow, consistent, progressive.
Unsexy.
But effective.
Understanding the biology changes the strategy.
And strategy determines outcome.
- Nicole
