The Injury That Quietly Ends Running Careers

And the Discovery That Helps Runners Come Back

By Ralph Havens, PT, IMTC
Beyond Limits Physical Therapy – Fairhaven, Bellingham, WA

Most runners think injuries start in the legs.

Achilles.
Knees.
Plantar fascia.
Hamstrings.

But after working with runners for decades, I’ve learned something surprising.

Many running injuries don’t start in the legs at all.

Sometimes they start in the nervous system.

The Run That Changed Everything

Years ago, I was running 70–90 miles a week.

Running was my identity.

I owned a successful physical therapy clinic and had been treating athletes for years.

Then one morning something strange happened.

Five minutes into an easy run…

my calf completely seized.

Not a cramp.
Not tightness.
A full shutdown.

And suddenly I couldn’t run.

Weeks passed.

Then months.

Nothing worked.

The stretches.
The strengthening.
The treatments I had used for years with other runners.

Nothing fixed it.

And that forced me to ask a question that would change my career.

What if the real problem wasn’t in my calf at all?

The Hidden Injury Many Athletes Carry

Eventually, I discovered something that most runners—and even many doctors—never learn about.

Your brain and spinal cord float in cerebrospinal fluid.

It’s a hydraulic system that runs from your skull all the way down your spine.

And when the head experiences impact:

• A fall
• A concussion
• A whiplash injury
• Even years of subtle impacts

That fluid pressure can push downward.

When it does, it can pull the sacrum downward.

This creates a pattern called the Descended Sacrum phenomenon, described by Thomas Giammatteo, one of the pioneers of Integrative Manual Therapy.

And when that happens…

The nervous system gets tensioned.

What Happens Next

When the sacrum drops and the nervous system is under tension, several things can happen that runners feel immediately:

• Stride mechanics change
• Breathing becomes restricted
• Posture collapses forward
• Hip mobility decreases
• Recovery slows dramatically

The body compensates.

But those compensations eventually show up as injuries:

• Achilles tendonitis
• Plantar fasciitis
• Recurring hamstring pulls
• IT band syndrome
• Chronic calf injuries

The runner treats the symptom.

But the underlying pattern stays.

So the injury keeps coming back.

Why Rest Often Doesn’t Work

Runners are often told to:

• Rest
• Strengthen
• Stretch

But if the nervous system is still under tension, those treatments only address the surface.

It’s like fixing a flat tire while the wheel alignment is completely off.

Eventually, the tire fails again.

What Happens When the System Releases

One of the most fascinating things I see with runners is what happens when the deeper system releases.

Breathing changes.

Posture lifts.

Stride length increases.

The body reorganizes.

Sometimes immediately.

And runners often say the same thing:

“It feels like my body is running the way it used to.”

Not forced.

Not controlled.

Just natural.

Why This Matters

Running is freedom.

It’s mental health.
It’s community.
It’s identity.

When injuries take that away, it’s devastating.

But many runners are dealing with problems that are more solvable than they think—once the real cause is found.

If You’re Dealing With a Chronic Running Injury

If you’re a runner dealing with an injury that keeps coming back, there may be a deeper reason.

Learn more:

Beyond Limits Physical Therapy
Fairhaven – Bellingham WA
Phone: 360-599-2217
https://ralphhavens.com

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