Stop telling people to Relax — They CAN’T.

l

Debunking Muscle Myths - An Intro to the Actual Operating System

Muscle tone is regulated by the nervous system through continuous modulation of motor output, sensory feedback, reflex activity, and load demand.

Muscles themselves do not store emotions, intentions, memories, or protective behaviors. These are metaphorical descriptions commonly used to describe observable changes in nervous system output and movement organization.

1. Alpha-Gamma Coactivation / Muscle Spindle Theory

(Core modern motor control physiology)

This is probably the cleanest physiological foundation for what you are trying to say.

Muscle tone is heavily influenced by:

  • gamma motor neuron activity

  • muscle spindle sensitivity

  • reflex loop gain

  • descending CNS input

  • proprioceptive feedback

  • load demand

  • The CNS continuously adjusts spindle sensitivity to regulate readiness, stiffness, positional awareness, and responsiveness.

    Meaning:
    Tone is not “emotion trapped in tissue.”
    Tone is an output state generated by neural regulation

  • Key names:

    • Rodolfo Llinás

    • Charles Sherrington

    • Nikolai Bernstein

Muscle tone reflects ongoing nervous system regulation of muscle spindle activity and motor unit recruitment in response to load, position, and sensory input.

That is modern neurophysiology.
Not metaphor.

2. Neuromatrix Theory / Modern Pain Science

(especially useful for your anti-metaphor position)

Ronald Melzack proposed the Neuromatrix Theory.

While often over-psychologized by clinicians online, the actual model says:

Pain and motor output are CNS-generated responses integrating:

  • sensory input

  • prior experience

  • environmental context

  • autonomic state

  • threat appraisal

  • movement demand

Importantly:
The nervous system changes motor output patterns.

Not:
“Muscles hold emotions.”

Modern pain science heavily supports altered recruitment patterns, stiffness regulation, and motor adaptation as nervous-system-mediated phenomena.

3. Dynamic Systems Theory / Motor Control Theory

(Very aligned with your “system organization” language)

This is probably philosophically closest to your Myostability framing.

Motor behavior emerges from interaction between:

  • task demand

  • environmental constraints

  • available capacity

  • sensory feedback

  • load

  • nervous system organization

    Key names:

    • Karl Newell

    • Nikolai Bernstein

  • This theory rejects simplistic ideas like:

    • single “correct posture”

    • muscles acting independently

    • intentional “guarding”

    • static alignment models

    Instead:
    Movement and tone are adaptive outputs of a constantly updating system.

    That is VERY compatible with:

    “The nervous system prioritizes stability over comfort.”

4. Contemporary Reflexive Stability Models

(used heavily in rehab and sports medicine)

Modern rehab literature increasingly discusses:

  • feedforward stabilization

  • anticipatory motor control

  • reactive stabilization

  • sensorimotor integration

  • stiffness modulation

This is not emotional language.
It is computational/load language.

The system changes muscle activity to manage:

  • uncertainty

  • force transfer

  • perturbation

  • positional control

  • energy efficiency

Again:
Tone becomes a regulatory strategy, not a personality trait of tissue.

5. Lorimer Moseley / Explain Pain Framework

You already lean this direction conceptually.

Lorimer Moseley repeatedly emphasizes:

  • the brain/nervous system produces outputs

  • pain is an output

  • movement strategies are outputs

  • protection is metaphorical shorthand

Even when he uses words like “protection,” the underlying mechanism discussed is nervous system regulation and output modulation.

You can absolutely refine this further into your own language:

altered muscle activity patterns associated with changes in perceived stability, load demand, and system organization.

That is scientifically defensible.