The Hidden Cause of Climber’s Elbow: Your Neck and Nervous System:Part 3 Climbers elbow

Some climbers fix their elbow pain with exercises, changing climbing technique managing volume and intensity.

If other strategies have truly been tired with good adherence over 2-3 months and you have had no significant improved it’s time to look somewhere else.

The problem not be at the elbow. It’s upstream—in the neck and nervous system.

The Neural Link: From Neck to Climber's Elbow

The nerves that brach off of our spinal cord control every aspect of muscle function.

In the neck we have 8 paired nerves that branch off the spinal cord and exit the spine between pairs of vertebra.  They then create a network like many roads crossing and interconnecting on a map. Several primacy nerves emerge and run the length of the arm providing muscle control and sensation to the forearm and hand.

C6-C7 primarily control wrist extension and flexion as well as pronation. They also provide sensation to the forearm and into the hand. The C6 segment via the Radial nerve can be involved in lateral epicondylitis and C7 via the Median nerve in medial epicondylitis.

The Problem Isn’t Nerve Compression

When climbers hear “nerve issue,” they often think of disc herniations or pinched nerves.

That’s not what we’re talking about here. Your cervical nerve roots are fine.

In true compression:

• signal transmission is reduced

• muscles become weak

• symptoms often include numbness, tingling, or radiating pain

That’s a different clinical picture.

In many climbers, the issue is not compression but a sensitized segment in the neck.

A Different Model: Sensitized Segments

Instead of compression, what we often see is segmental dysfunction—typically in the mid to lower cervical spine.

These segments may:

• move excessively (hypermobility)

• lack adequate muscular support

• receive constant low-level mechanical input

Over time, this can lead to a lowered activation threshold of the nervous system at that segment. This means that it takes less input for the local output to be activated.

A useful analogy:

It’s like a car alarm that no longer needs a bump to go off—now it reacts to a leaf hitting the windshield.

This can influence several key processes:

1. Altered Motor Output

Changes in motor neuron excitability can lead to:

• Increase in resting tension in the muscle- a continuous low level contraction

• earlier fatigue

• inefficient muscle recruitment

• increased local muscle soreness and increase mechanical tension on the tendon

2. Sympathetic Nervous System Influence

Heightened sympathetic activity may:

• reduce local blood flow

• impair recovery capacity

• increase sensitivity to load

3. Axonoplasmic Flow Disruption

Subtle changes in axonal transport can affect:

• timing of muscle activation

• delivery of nutrients and signaling molecules

• clearance of metabolic byproducts

  
  
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Why This Matters for the Elbow

When these changes are present, the forearm muscles don’t behave normally.

They may:

• fatigue faster

• stay tight even at rest

• generate force less efficiently

Which means the tendon is exposed to:

• higher mechanical strain

• poorer load distribution

• reduced recovery between sessions

• 
  

The forearm ends up working harder than it should, with less efficient control and reduced recovery capacity. The tendon, in turn, is exposed to higher strain, more frequently, under worse conditions.

Over time, this creates the exact environment where tendinopathy persists—or keeps coming back.

Why Climbers Are Set Up for This

Climbing culture—and modern life—both push the body in the same direction:

• prolonged upward gaze (belaying, route reading)

• forward head posture

• rounded shoulders/tight pecs

• stiff thoracic spine/climbers back

• overactive upper trapezius

And outside of climbing:

• desk work

• laptop posture

• time spent on phones head down slouched scrolling

The result is a common pattern:

Stiff upper neck→ stiff thoracic spine = mobile mid-cervical segments

This combination increases the likelihood of segmental hypermobility in the neck, even in the absence of neck pain.

Most climbers with this pattern don’t report significant neck symptoms. Perhaps stiffness or snores in neck but the elbow usually is the big pain generator.

Signs the Neck May Be Involved

Not every case of elbow pain is driven by the neck—but when it is, patterns tend to look like this:

• persistent forearm tightness despite appropriate rehab

• fatigue in the forearm that feels disproportionate to effort

• fluctuating grip strength

• neural tension sensitivity

• symptoms that don’t follow a clear load-response pattern

• Heaviness in arm during climbing again associated fatigue on that side > other side

This is often the group of climbers who say:

“I’ve tried everything, and it still comes back.”

What Actually Helps

If the neck is contributing, local elbow treatment alone won’t fully resolve the issue.

You have to address the system.

That typically includes:

• restoring thoracic extension and rotation

• improving cervical segmental control

• reducing excessive tone through the upper quarter

• integrating nerve mobility (when appropriate)

• changing sustained postures outside of climbing

That usually means improving thoracic mobility so the neck doesn’t have to compensate. It means giving the cervical spine better muscular support and control, so it’s not constantly at threshold triggering do

wnstream consequences. And in some cases, it means addressing how the nervous system itself is moving and adapting.

Specific changes at the neck can have outsized effects on the tendon.

The Big Takeaway

If your elbow isn’t improving—even when you’re doing the right things—

look up the chain.

Because sometimes the limiting factor isn’t strength, technique, or load.

It’s the system that controls all of it.