The Science of Afferentology
Explore research articles, scientific insights, and the neuroscience behind afferent input and muscle function.
Foundation Articles
Essential concepts for understanding Afferentology

Why Afferent Input Matters
Understanding why paying attention to afferent input is crucial for examining and treating patients based on neurological input and output.

The Myotatic Reflex
Your body's most important defense mechanism for controlled movement, injury prevention, and maintaining proper muscle tone.

The Withdrawal Reflex
How sensory receptors have direct control over muscle tone to protect us from danger and respond to irritation.
Latest Research & Articles
Recent insights and case studies

The Feedback Loop: Why Your Brain is Waiting on Your Muscles
Discover why athletic performance depends on the quality of sensory input and how Afferentology fixes corrupted neurological data.

The Neurological Battery: Your Brain Runs on Afferent Input
Your brain is a high-performance computer that cannot run without a power source; that power comes from the constant 'amperage' generated by your periodontal ligaments and muscle spindles.

The 120-Year Glitch: Updating Palmer’s Vision with Modern Neurology
In 1910, the founder of Chiropractic, DD Palmer, made a radical claim that would define his life’s work: "Life is the expression of tone."

The Spindle Paradox: Why Your Sensors Are More Than Just "Length Meters"
Muscle spindles—the primary Afferent sensors—don’t just measure how long a muscle is; they measure the "Internal Yank" or tension of the muscle.

The Neurological Voltmeter: Why Software Rules Musculoskeletal Hardware
Discover how In Vivo Neuromechanics and Afferentology prove that spinal motor neuron activity, not just muscle mass, is the causal driver of movement and joint stability.

Beyond "Imbalances": Your Spinal Cord Dictates Muscle Tone
Learn why most attempts at therapy provide only temporary relief when the spinal cord is managing the "software" of your movement.

The Neurological Voltmeter: Microneurography and Resting Tone
Periodontal mechanoreceptors are not passive. Instead, they exhibit spontaneous discharge, even in the absence of external stimuli.

The Neurological Voltmeter: Mats Trulsson and the 50Hz Secret of Your Teeth

The Volume Knob of Pain: Understanding Your 50Hz Resting Tone
If you feel "tight" no matter how much you stretch, the problem isn't your muscles. It's the baseline frequency of your nervous system. Welcome to the world of neurological software.

The Quickest Way To Change Muscle Tone
For this patient, excessive afferent input coming from his periodontal ligaments caused back pain and weakness in his lower back.

The Neurological Voltmeter: Why Whole-Body Power is the Ultimate Predictor of Survival
If you want to know how well the engine is running, you don't just look at the size of the block; you check the spark. In the human body, that spark is your whole-body neurological output.

Sixty Studies Linking Strength With Longevity
There is a growing mountain of studies which firmly establish the link between muscle weakness and early death.

The Connection Between Handgrip Strength and Mortality/Morbidity
Research consistently shows a strong correlation between grip strength and overall health outcomes.

Beyond Biomechanics: The Role of Afferent Irritants in Muscular Inhibition
Most chronic pain protocols fail because they treat the "hardware" of the body—muscles and bones—while ignoring the "software" that controls them. If you have a nail in your foot, the solution isn't a better hip exercise; it's removing the nail.

Closing the Gap: Turning Mortality Statistics into Clinical Success
How Precision Muscle Testing Resets the Software of Longevity.

The Birth of Afferentology: Lesley's Story
Lesley had severe muscle inhibition. Her eighteen years of deteriorating health ended instantly when the faulty afferent input was removed.

Fixing An Inguinal Hernia
This new patient had acute low back pain getting steadily worse for one week. Watch as I work out exactly what the problem is and how to fix it in 5 minutes.

Uncontrollable Movements Caused By An Apicectomy
This young man was distressed by uncontrollable shaking. He never suspected the real culprit was dental work from his teenage years.

Slipped Disc From A Dental Crown
Watch this dramatic return to strength and normal mobility as this patient bites down on a gold crown.

Are You Still Suffering?
Even elite athletes end up with career-ending injuries because nobody identified why their body could not heal itself.

Muscle Weakness Caused by Belly Piercing
Removing this dancer belly piercing resulted in a noticeable improvement in her strength and movement.

Headaches Gone With One Adjustment
In this video you see how putting her head forward makes her shoulder weak due to inhibited neck extensors.

Your Teeth Are Important To Your Body
Simon instantly diagnosed this as coming from a root filling and crown that had been done some time ago.

A Muscle Tone Experiment
My attempt to reproduce the protocols used by the landmark study in the British Medical Journal.

Research: Individuals vs Averages
Good science measures the outcome of an intervention on a subject and compares that with the outcome on a control.

The Unseen Foundation of Health: Muscle Reflexes
Why it is important to test the myotatic reflex which constantly governs muscle tone.

Earrings Causing Hip Pain
My right hip caused me great pain. The unexpected culprit was earrings acting as hidden afferent irritants.

The Universal Signal: Redefining Manual Therapy through Afferentology
Afferentology provides a universal framework for understanding and treating a wide range of physical complaints.

The Battery of the Brain: Why Life Depends on Neurological Input
The human body is a dynamic, self-regulating system that constantly adapts to its environment.

The Dental Circuit: How Amalgams and Crowns Trigger Systemic Muscle Inhibition
Why metal or amalgam fillings sometimes cause muscle inhibition and weakness.

Testing the Adductors
It is important to make the adductors part of your clinical examination for pelvic stability, low back and hip issues.

An Unexpected Trigger For Acute Low Back Pain
Many of us experience back pain. Often the cause is unexplained until afferent input is properly tested.

Increased Range of Motion Without Exercise
In this video we found weakness in the toe extensors causing limited range of motion in the ankles of a golf professional.

How Afferent Input helps Englands Strongest Man
Identifying and addressing underlying weaknesses can lead to significant improvements in physical performance.
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