Chronic exertional compartment syndrome is a build-up of pressure within a muscle compartment of the lower leg during exercise. The pattern is very consistent: symptoms arrive at a predictable point into a run, build to the point of stopping, then resolve within minutes of rest. It is much less common than shin splints and is often diagnosed only after other causes have been ruled out.

Does this sound like you?

Most people have several of these, not all of them.

Tightness, cramping or burning at a predictable distance into a run
Symptoms building until you have to stop
Relief within minutes of stopping — the most distinctive feature
Numbness or pins and needles in the foot during exercise
Occasional foot drop or weakness late in a run

Why it happens

Muscle expanding during exercise within a compartment that cannot accommodate it
A rapid increase in running volume
Running technique that heavily loads one compartment
Previous lower leg trauma or scarring

What we would do about it

Roughly in this order — each step waits for the one before it.

Distinguishing it from shin splints and stress fracture first
Running technique retraining, particularly cadence and foot strike
Calf and foot strengthening
Structured load management and gradual rebuilding
Soft tissue work through the compartment
Referral for compartment pressure testing and a surgical opinion where it persists

See a doctor first if

Your pain followed a significant injury
It is getting worse rather than settling
It comes with numbness, weakness or unexplained weight loss

This page is general information, not a diagnosis. Symptoms overlap between conditions, so the right treatment depends on an assessment.

The pattern is what gives this away

Symptoms at a predictable distance that vanish minutes after stopping is quite specific. Getting the diagnosis right saves months of treating the wrong thing.

Book a leg assessment Ask a question first

Or call us on 0403 907 587 — we see patients across Seaton.

Other leg conditions we treat

Hamstring Strain Calf Strain Shin Splints Quadriceps Strain

Back to all leg conditions

Related reading: the more common cause of shin pain and calf muscle injury.

General information only, not advice about your own problem — nothing here replaces an assessment. Source: Compartment Syndrome on Physiopedia.

Compartment Syndrome