The Experience Miracles Podcast

Tackling Low Muscle Tone: Beyond PT & OT

Jul 23, 2024

Low Muscle Tone in Children: The Neurological Root Cause Beyond PT and OT

Episode 30, Experience Miracles Podcast | Host: Dr. Tony Ebel, DC, CACCP, Pediatric Chiropractor & Founder of PX Docs | Published: July 23, 2024 | Duration: ~53 min

Key Takeaways

  • Low muscle tone is not caused by weak muscles, it is a downstream symptom of hypertonicity (excessive tension) in the upper neck, brainstem, and upper thoracic spine, almost always originating from birth trauma.
  • The cerebellum and brainstem function as the body’s “air traffic control” for motor tone and coordination. When birth trauma creates subluxation in the upper cervical spine, that control center is disrupted, producing low tone throughout the core.
  • Children who have plateaued in PT, OT, or speech therapy despite months or years of effort are typically missing one thing: neurologically-focused chiropractic care that addresses the subluxation driving the hypertonicity that makes the core weak.
  • Neurologically-Focused Chiropractic Care uses a two-phase approach, a release phase using light Neuro-Tonal Adjustments to reduce tension, followed by a reorganization phase to reactivate exhausted neuromuscular patterns in the core.
  • INSiGHT Scans (EMG and thermal) can measure, track, and quantify hypertonicity in the upper cervical spine, giving PX Docs chiropractors a data-driven roadmap to personalize care and document real neurological change.

Why Does My Child Have Low Muscle Tone?

Low muscle tone in children with autism, ADHD, sensory processing disorder, and related neurological challenges is widely misunderstood. The standard explanation, that a child simply has weak muscles, addresses the symptom while completely missing the cause.

The real mechanism begins in the upper neck and brainstem. When a child experiences physical birth trauma, from forceps, vacuum extraction, emergency C-section, cord wrapping, breech positioning, or even the natural force of moving through the birth canal, it creates excessive tension in the nerves and muscles of the upper cervical spine, the suboccipital area, the neck, and the upper thoracics. This tension is called hypertonicity, and it produces a condition called subluxation: dysfunction in the vertebrae that interferes with nervous system signaling.

Here’s the key physiological rule Dr. Tony Ebel explains: you cannot have low muscle tone in the core unless you first have hypertonicity somewhere else. The nervous system doesn’t have “enough tone to go around” when the upper neck is locked in spasm. The body compensates by running out of tone in the core, producing the weak posture, poor coordination, and missed motor milestones that parents and therapists observe.

Until that upstream hypertonicity is identified and released, all the PT, OT, and sensory gym work in the world addresses the wrong part of the chain.

What Low Muscle Tone Actually Looks Like [00:12:00 – 00:20:00]

Dr. Tony Ebel: The classic signs of low muscle tone are the ones you can see directly.

Poor posture is usually the first thing parents and therapists notice, rounded shoulders, head tilted forward or to the side, a constant slumped sitting position. These kids have real difficulty maintaining upright head control. Dr. Tony calls them “drunken bull kiddos”, they struggle with posture, movement, and coordination, and their motor processing is visibly delayed.

When you ask a child with low muscle tone to change positions, lay down, turn around, move across a room, there’s a notable lag between hearing the instruction and the muscles actually responding. That processing delay is not a behavioral problem. It is a physical sign that subluxation is interfering with the nervous system’s ability to send and receive motor signals efficiently.

Endurance is another major indicator. Children with low tone fatigue quickly at the park, during sports, even at home. And what follows fatigue, for kids of any age, is meltdowns, emotional dysregulation, and inability to follow directions. Families living this pattern often don’t connect the dots between their child’s low physical stamina and their behavioral struggles, but they are part of the same neurological picture.

“Low muscle tone, weak core, and your child’s gross motor delays are actually more of a symptom of deeper neurological dysfunction and dysregulation.”

The developmental sequence matters here. Gross motor development must come first, rolling, sitting, crawling, walking. If a child cannot achieve appropriate tone, coordination, efficiency, and endurance at that foundational level, they will be delayed reaching fine motor milestones: holding utensils, writing, buttoning clothes, hand-eye coordination in sports. That fine motor delay then ripples into social withdrawal, kids who struggle to engage physically start pulling back from play, from sports, from peer interaction, and that social disengagement affects emotional and cognitive development as well.

Poor oral motor control, sensory aversions to foods and textures, difficulty chewing, is also a manifestation of the same pattern. These are all signs of the same underlying neurological insufficiency, not separate problems requiring separate solutions.

The Root Cause: Hypertonicity, Not Weak Muscles [00:21:00 – 00:29:00]

Dr. Tony Ebel: What is actually causing low motor tone, weak core, and motor incoordination? Tight muscles. Excessive tension, hypertonicity, elsewhere in the body, specifically in the neurospinal system.

The technical term for low muscle tone is hypotonicity. And the physiological law that drives this whole conversation is straightforward: you will not have weak, hypotonic muscles in the core unless you first have spasticity and hypertonicity in the upper neck, brainstem, and upper thoracics. These two states are neurologically coupled. One always precedes the other.

The way the cerebellum, the brain’s control center for motor tone and coordination, decides what signals to send to the muscles is by first listening to sensory input coming in. This is called proprioception and mechanoreception. When birth trauma creates subluxation in the upper cervical spine, it distorts that incoming sensory signal. The cerebellum receives a skewed picture of what the body is doing, and its outgoing motor commands become equally skewed. The result is that the neck and traps are flooded with signal, hypertonicity, while the core is starved of it.

Dr. Tony uses INSiGHT scanning technology, specifically EMG scans that measure neuromuscular tone and thermal scans that assess autonomic function, to find and quantify this pattern. In tens of thousands of patients, the finding has been consistent: excessive tension in the upper cervical and upper thoracics, followed by weakness and low tone in the core.

No other profession evaluates the spine in this order. Pediatricians miss it. Even most pediatric PTs and OTs don’t look for it, because they’re trained to start at the core, where the weakness is, rather than at the neck, where the cause is.

“No one does that intricate of an exam, and no one does it in that order. No one looks to the brainstem and the neck first as the original root cause of a weak core.”

When hypertonicity manifests, parents often recognize it in other ways they hadn’t connected: a child who constantly clenches their jaw, cracks their own neck or joints, toe walks, has persistent hand tension, or struggled with tongue ties that didn’t fully resolve after revision. All of these are signs that excessive tension is locked into the neurospinal system, and that tension is also pulling tone away from the core.

How Birth Trauma Creates the Problem [00:29:00 – 00:35:00]

Dr. Tony Ebel: The question underneath the root cause is: why does hypertonicity develop in the neck in the first place? The answer, in nearly every case, is birth trauma.

The range of birth interventions that produce this pattern runs from the most physically intense to what seem like minor assists: forceps (the most injurious), vacuum extraction, emergency C-section, cord wrapping, breech positioning, induction, posterior presentation, manual assistance. Even a birth that goes beautifully, home birth, midwife, no interventions, involves a baby’s head and neck navigating significant physical force through the birth canal. That journey is rarely without consequence to the upper cervical spine.

The Perfect Storm framework describes this precisely: prenatal stress, birth trauma, and early toxin or intervention exposure compound to create a cascade of neurological dysfunction. The birth trauma component is the single most overlooked trigger in all of healthcare, not because it’s rare, but because no one with the training to identify it is routinely examining newborns and infants for it.

When birth produces tension, trauma, and physical stress in the upper neck, the body responds by locking that region into hypertonicity and what chiropractors call subluxation, neurospinal dysfunction that alters the way the brain and body communicate. That subluxation in the upper cervical spine, brainstem, and upper thoracics then creates every downstream effect we’ve described: reduced proprioceptive signaling, disrupted cerebellum function, low tone in the core.

Joseph, an 11-year-old presenting with autism, sensory processing challenges, a seizure disorder, constipation, acid reflux, sleep irregularities, anxiety, dyspraxia, and low muscle tone, had been through years of PT and OT with no meaningful motor progress. His mother Amy had given up on addressing his posture and motor function entirely. She couldn’t see how it would ever change.

Within a few days of Neurologically-Focused Chiropractic adjustments at Dr. Tony’s clinic, Joseph’s core activated and came back online. On day three, he told his mother he wanted to go to the hotel gym and work out. She couldn’t believe it. His nervous system, freed from the upper cervical tension blocking its motor signals, did exactly what a nervous system is designed to do, it told his body to move.

The Brainstem as Air Traffic Control [00:32:00 – 00:39:00]

Dr. Tony Ebel: The upper cervical spine and brainstem are the air traffic control tower for every major function in the body.

In other episodes, Dr. Tony has connected this region to gut function, immune function, and vagus nerve activity. In this episode, the focus is motor tone, development, and coordination, but the mechanism is the same. When birth trauma creates subluxation in the upper cervical spine, it shuts down air traffic control. Every system that depends on that coordination tower, including the motor system, starts to malfunction.

Sympathetic Dominance is the neurological state that follows. The nervous system gets stuck in fight-or-flight mode. When the motor system is getting too much incoming signal from a wound-up, subluxated upper neck, it continues to output too much tone in the wrong places and not enough in others. The behavioral issues, the sensory meltdowns, and for children like Joseph, the seizures, these are all expressions of a nervous system that cannot self-regulate because its control center is compromised.

“You cannot have weak, low muscle tone, specifically in the core, unless you first have hypertonicity, excessive, tight tension somewhere else.”

This is why PT, OT, and sensory-based therapies, as valuable as they are, often plateau or produce slower results than families hope for. They are attempting to retrain a nervous system that has a massive roadblock built into it. Air traffic control is down. The signals aren’t getting through. When that blockage is cleared with neurologically focused chiropractic care, the same therapies that were producing slow results suddenly accelerate. The two approaches are not either/or, they are and.

The Two-Phase Chiropractic Approach [00:39:00 – 00:50:00]

Dr. Tony Ebel: Once a parent understands that hypertonicity in the upper cervical spine is the root cause, the next question is what to do about it.

The answer is finding a chiropractor specifically trained in neurologically focused, pediatric nervous system care, one who uses the right technology, the right exam protocols, and a multitude of adjustment techniques matched to the specific subluxation pattern present. Not all chiropractic is the same, and in this context, technique selection matters enormously.

Phase 1: The Release Phase

When hypertonicity is the primary pattern, what Dr. Tony calls the “raging bull subluxation,” full of tension and sympathetic charge, you cannot fight fire with fire. Traditional manual adjustments that are forceful or physically aggressive are the wrong tool. They can make the pattern worse.

Instead, light, precise Neuro-Tonal Adjustments are used to release the stuck tension. If you watched a PX Docs adjustment in the release phase, you would wonder if anything happened. The subtlety is intentional. A wound-up guitar string cannot be tuned by forcing it harder, it has to be gently released. Phase 1 targets subluxation and sympathetic dominance, coaxing the nervous system out of its locked state.

Phase 2: The Reorganization Phase

Once the excessive tension is released, the exhausted and suppressed neuromuscular patterns in the core need to be reactivated. Phase 2 uses more stimulatory adjustment techniques designed to wake up the weak areas, triggering a parasympathetic response and refilling the tone that has run dry in the core.

The combination of these two phases, one releasing tension, one reactivating function, is what produces the kind of change Joseph experienced. INSiGHT Scans are re-run every two to four weeks to track whether real neurological change is occurring, not just symptom management.

“When you get rid of that excessive tension, the body recalibrates. It’s incredible. Chiropractic is actually founded in tone. Nervous system tone.”

The principle underlying this entire approach is neuroplasticity, the nervous system’s capacity to reorganize, rebuild connections, and restore function when the interference is removed. PX Docs chiropractors are not treating or curing low muscle tone. They are addressing subluxation and nervous system dysregulation, and allowing the nervous system to do what it was designed to do.

Action Steps for Parents [00:44:00 – 00:53:00]

Dr. Tony Ebel: The most important thing a parent can take from this episode is not guilt about the past, it’s clarity about the next step.

If your child has been doing PT, OT, speech therapy, sensory gym work, ABA, or functional neurology and the motor and coordination challenges are still there, that does not mean those therapies are wrong. It means the upstream subluxation driving the hypertonicity has not been addressed yet. When it is, every other therapy your child is receiving will work better and produce faster, more lasting results.

Step 1: Get excited. You now know why your child has been plateauing. The missing link has a name, subluxation, and there is a clinical approach designed specifically to address it.

Step 2: Go deeper. Visit pxdocs.com to read the article on low muscle tone. Watch the videos on YouTube showing the INSiGHT scan results for children like Joseph, you’ll see the hypertonicity in the upper neck and shoulders and the corresponding weakness in the core, and then watch those scans normalize with care.

Step 3: Find a PX Docs chiropractor. Use the directory at pxdocs.com/directory to find a certified, neurologically focused pediatric chiropractor near you. These providers use INSiGHT scanning technology, carry the right clinical training, and follow the protocols designed for children with these exact challenges. If no one shows up in your area, reach out via Instagram, there are chiropractors in the certification pipeline who may be able to help.

Step 4: Get your child scanned. The EMG scan is particularly useful for visualizing neuromuscular tone across the spine. A certified PX Docs chiropractor will conduct a full neuro-motor tone evaluation, looking first to the neck and brainstem, not the core, and build a personalized care plan from there.

Frequently Asked Questions

What is the real cause of low muscle tone in children?

Low muscle tone in children is most often caused by hypertonicity, excessive tension in the upper neck, brainstem, and upper thoracic spine, rather than inherently weak muscles. This hypertonicity is nearly always traced to birth trauma (forceps, vacuum extraction, C-section, cord wrapping, breech positioning) that creates subluxation in the upper cervical spine. The brainstem and cerebellum, which regulate motor tone, are disrupted, starving the core of the signals it needs to develop strength and coordination.

Why isn’t PT or OT fixing my child’s low muscle tone?

Physical therapy and occupational therapy target the core and muscles directly, which is appropriate, but they work downstream of the actual cause. If subluxation in the upper cervical spine is blocking neurological signaling from the brainstem, the nervous system has a traffic jam that prevents the motor retraining from fully taking hold. Dr. Tony Ebel explains that when chiropractic care clears that subluxation first, PT and OT outcomes improve significantly and more quickly.

Can birth trauma cause low muscle tone and autism?

Yes, according to Dr. Tony Ebel. Birth trauma to the upper neck and brainstem creates subluxation and sympathetic dominance, a chronic fight-or-flight neurological state. This disrupts the brainstem’s ability to regulate motor tone, gut function, immune response, and sensory processing. Low muscle tone, autism, sensory processing disorder, seizures, and gut challenges often share this same neurological root. Dr. Tony describes these not as separate diagnoses but as “related symptoms” of the same underlying nervous system dysregulation.

What are the signs of hypertonicity in children?

Hypertonicity in children often shows up as jaw clenching, toe walking, constant hand tension or fisting, the urge to crack or pop their own neck, tongue tie tension that persists after revision, and overall sensory sensitivity or meltdowns. These are all signs of a nervous system locked in excessive tension. INSiGHT Scans, specifically EMG scans used by PX Docs chiropractors, can measure and quantify this hypertonicity in each spinal segment, making the invisible problem visible.

What is the two-phase chiropractic approach for low muscle tone?

Dr. Tony Ebel uses a two-phase protocol. Phase 1 (Release): Light Neuro-Tonal Adjustments are applied to the upper cervical spine to release the locked hypertonicity and reduce sympathetic dominance, similar to gently releasing a wound-up guitar string rather than forcing it. Phase 2 (Reorganization): More activating techniques stimulate the exhausted, low-tone core muscles and help the nervous system rebuild normal neuromuscular patterns. Progress is tracked with INSiGHT Scans every two to four weeks.

How do I find a chiropractor trained in this approach?

Visit the PX Docs Directory and search by city, state, or zip code. Chiropractors listed in the directory have completed specific certification training in neurologically focused pediatric care, use INSiGHT scanning technology, and follow the clinical protocols designed for children with low muscle tone, autism, sensory processing challenges, and related conditions. If no one is listed near you, reach out via PX Docs Instagram for guidance.

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