Rebuild Your Body: How to Train Movement Patterns, Not Just Muscles | Dr. JJ Thomas

Episode Overview

• Movement as a Primary Biological Driver: Host Dr. Gabrielle Lyon and physical therapist Dr. JJ Thomas (Founder of Primal Physical Therapy, who treats Olympians and travels with the NBA's Philadelphia 76ers) explore why movement is not merely a supplementary health activity, but an essential external stimulus required to trigger internal tissue repair, regulate metabolism, and preserve lifelong physical capacity.
• Systems-Based vs. Isolated Anatomy: The conversation challenges conventional medicine and traditional bodybuilding splits that isolate individual muscles or simply silence pain, advocating instead for a three-dimensional, developmental movement approach that addresses the root biomechanical causes of injury.
• The Developmental Blueprint: Listeners learn how adult posture, pelvic floor health, and chronic pain are governed by primal movement milestones developed between ages 0 and 3—specifically how scapular (shoulder blade) stability dictates pelvic and core stability.
• Clinical Tools and Metabolic Synergy: The episode covers diagnostic evaluations, the structural and biochemical mechanics of dry needling, and Dr. Thomas's personal health transformation as Dr. Lyon's patient—demonstrating why even elite movement specialists must pair physical training with hormone optimization and adequate dietary protein.

Key Concepts

• The Mortality Cost of Sedentary Living: Dr. Lyon notes that 80% of adults are insufficiently active, spending 6 to 10 hours per day sedentary and 82% of leisure time watching TV. Dr. Thomas adds that while the average American lives to age 79, the last 12 years are often spent in chronic disability or loss of independence. Citing research on sitting and mortality, Dr. Thomas explains that for every hour spent sitting over 7 hours, mortality risk increases by 5%—meaning individuals who sit for 10 hours daily face a 15% higher risk of mortality.
• Pain is the Alarm, Not the Root Cause: Conventional approaches often treat the site of pain directly (which Dr. Thomas likens to taking the batteries out of a smoke alarm) rather than looking for the "fires" elsewhere in the body's movement system. While science shows tendinopathies require eccentric loading (lengthening a muscle under load) to repair, and treatments like PRP (Platelet-Rich Plasma) or stem cells can heal tissue, the injury will inevitably return if the underlying movement pattern that caused the tear or inflammation is not corrected.
• Demand-Driven Tissue Repair: Human tissues possess internal repair mechanisms, but they depend on external biological stimuli—such as movement, sunlight, sleep, and nutrition—to initiate repair based on physical demand. Without diverse, three-dimensional movement across the sagittal (forward/backward), frontal (lateral), and transverse (rotational) planes, the body stops maintaining the neurological and structural stability of unused pathways.
• Developmental Milestones and the Scapular-Pelvic Connection: Between 0 and 3 years of life, babies earn the right to walk, run, and jump by progressing through developmental milestones: head control, scapular control, reaching/rotating, rolling, crawling on all fours, squatting, and standing. Scapular stability is a prerequisite for pelvic stability because the serratus anterior muscle (which protracts the shoulder blade) feathers into and anchors to the abdominal muscles, which in turn attach to the pubic bone of the pelvis.
• The "Pelvic Room" and Posture as Evidence: Dr. Thomas explains that "pelvic floor" is an incomplete term because a floor cannot exist without a room—the top wall is the diaphragm, and the side walls are the abdominals and spinal erectors, anchored by the shoulder blades. Consequently, training scapular and core stability together can reduce urinary incontinence in both men and women. Furthermore, posture is merely a reflection of these underlying stability patterns; consciously trying to "sit up straight" will never fix poor posture without training the foundational muscles.
• The Cascade of Scapular Instability: When shoulder blades lack stability and round forward, the scapula rides out on the rib cage, impinging the biceps tendon or the supraspinatus tendon (which has a poor blood supply) under the acromion. Rounded shoulders also force the head into extension so the eyes can look forward, closing down the suboccipital muscles at the base of the skull, decreasing blood supply, and causing chronic headaches and TMJ (jaw) issues.
• Activating the Upper Posterior Chain: A standard upright squat does not effectively activate the top half of the posterior chain (the spinal erectors) because the torso remains vertical. To engage the upper posterior chain, a movement must either incorporate overhead shoulder resistance or bring the torso parallel to the floor.
• "Overuse" Injuries are Actually "Underuse" Injuries: Conditions commonly labeled as overuse injuries—such as shin splints (posterior tibialis tendinitis) or stress fractures—are actually caused by underusing the surrounding three-dimensional stability patterns that are meant to balance and share the mechanical load. Similarly, Dr. Thomas warns that training only isolated body parts (like traditional bodybuilding splits) without pattern integration leads to injury in close to 100% of people.
• Fascial Lines and Diagnostic Dry Needling: Because the body is connected via fascial and neurological lines, a limitation in one area often originates somewhere else entirely. For example, Dr. Thomas resolved Dr. Lyon's chronic hamstring pain by treating her shoulder and neck first, and normalized a clinician's neck rotation from 30 degrees to the healthy ~80-degree range simply by placing 1 to 2 needles into his quad and adductor (groin). While Dr. Thomas notes she cannot speak for what all current physical therapy programs teach regarding systems-based movement, she uses dry needling (which only 300 US physical therapists practiced when she learned it in 2009) to create a structural, biochemical, and electrical reset in the muscle. When a needle hits an active trigger point, it elicits a diagnostic twitch response that shows electrical changes on an EMG, releases contracted fibers, and triggers biochemical repair (though she hedges that while she sees a greater clinical effect with a twitch, it isn't always critical, and attaching electrical stimulation can also work in certain scenarios).
• Exercise Cannot Outrun Hormone and Protein Deficits: Despite being an elite movement specialist and avid exerciser, Dr. Thomas experienced low estrogen, suboptimal thyroid levels, poor lipids, significant cardiovascular risk factors, and nightly sugar cravings. Working as Dr. Lyon's patient (the two disclose they have been each other's patients, are personal friends, and collaborated on the "Forever Strong Foundations Challenge"), Dr. Thomas transformed her blood work and body composition in 8 to 11 months by addressing her hormones and thyroid and increasing her protein intake.

Quotes

• At 0:00:00 - "We've created conveniences in our society so that we don't need the movement necessarily, but biology didn't get the memo." - Dr. JJ Thomas framing why modern physical inactivity conflicts with human evolutionary requirements.
• At 0:02:20 - "That's right, and that really the pain is the alarm. And so what we have to figure out is what is the signal, like what is causing that alarm to go off. Often in medicine, we keep just, just taking the batteries out of the alarm, rather than actually looking into the rest of the house and saying, okay, is there smoke here, is there smoke here, are there multiple fires?" - Dr. JJ Thomas explaining why treating localized pain fails if the root biomechanical dysfunction is ignored.
• At 0:08:05 - "For every hour over seven hours of sitting, the increase in mortality, the risk of increased mortality goes up by 5%. So for those 10-hour people, they have 15% higher risk of mortality." - Dr. JJ Thomas citing research on the direct link between prolonged sedentary behavior and mortality.
• At 0:09:28 - "My perspective is that movement is actually, has the potential to be a driver in health." - Dr. JJ Thomas shifting the paradigm of exercise from a supportive habit to a primary biological signal.
• At 0:10:36 - "There are plenty of studies that identify small movement snacks, like getting up and squatting 10 to 15 times every hour, as being able to improve metabolic processes, so especially glucose uptake and hormone regulation. And even the same activity, 20 squats every hour, can actually change amino acid regulation as well for protein synthesis." - Dr. JJ Thomas highlighting how brief hourly movement interrupts sedentary metabolic decline.
• At 0:13:44 - "When I'm writing, I'm going off of the seven, sort of seven foundational movements, and that's, I'm always looking for a squat, a hinge, a push, a pull, a carry, a reach, and a rotate." - Dr. JJ Thomas outlining the core movement patterns required for comprehensive programming.
• At 0:17:24 - "Injury prevention is the same as sports performance. So, and injury prevention comes from making sure you have three-dimensional stability patterns." - Dr. JJ Thomas explaining that protecting joints and optimizing athletic output rely on the exact same foundation.
• At 0:27:37 - "The reason I believe the scapular stability is a precursor to being able to roll and crawl is that you can't have pelvic stability unless you have scapular stability." - Dr. JJ Thomas connecting infant developmental milestones to adult core and hip function.
• At 0:31:15 - "Basically, our bodies repair based on demand. So if we're not getting our arms on the ground, we're not telling our, we're not giving our body the biological signal that says, hey, my arms are still important, my scapular stability is still important." - Dr. JJ Thomas explaining why weight-bearing through the hands and forearms is vital for maintaining upper body integrity.
• At 0:34:50 - "Posture is really a reflection of your underlying stability. So it's really evidence of what your stability patterns are. So if you have poor posture, deciding to sit up taller is never going to really move the needle for you." - Dr. JJ Thomas debunking the myth that conscious effort alone can correct rounded shoulders or slouching.
• At 0:39:08 - "And people call it the pelvic floor, and then patients want to know why I'm giving them scapular exercises for their pelvic floor. And I'm like, because you can't have a floor without a wall, without a room!" - Dr. JJ Thomas illustrating how the diaphragm, abdominals, spinal erectors, and shoulder blades work together to resolve pelvic floor dysfunction.
• At 0:42:09 - "The average American lives to be 79, but the last 12 of those years are often spent in physical disability, chronic, um, chronic disability or, or loss of independence. So I want to help people with physical capacity." - Dr. JJ Thomas defining the ultimate goal of physical therapy and strength training across the lifespan.
• At 0:54:59 - "What people think of as overuse injuries are often underuse injuries, in my opinion. So overuse injuries happen because we're underusing the patterns that balance them." - Dr. JJ Thomas reframing common athletic injuries like shin splints and tendinitis.
• At 1:23:35 - "Rigidity up front equals flexibility later." - Dr. Gabrielle Lyon summarizing why strict adherence to foundational nutrition and movement habits creates long-term health freedom.
• At 1:29:39 - "If we think of muscles as the metabolic sink, I can also compare it to like, if you think of it from a financial standpoint, like let's imagine it's a bag of money or it's a bank account. Our movements throughout the day help tell us where to invest the money. So that's where when I say it's a primary driver, our movements are going to dictate where we're investing our money." - Dr. JJ Thomas synthesizing how daily movement directs the body's metabolic and structural resources.

Takeaways

• Perform Hourly "Movement Snacks": Interrupt prolonged sitting every hour with 10 to 20 bodyweight squats to improve glucose uptake, insulin sensitivity, hormone regulation, and amino acid utilization for protein synthesis (as well as cognition and memory in children). For an 8-hour desk job, invest 10 minutes total per day by doing a 1-minute resistance band exercise before sitting, once every hour during work, and once after work.
• Practice "Adult Tummy Time": Spend time lying on your stomach propped up on your elbows (the 3-month-old baby "prone propped" posture) while reading, typing emails, or working on a laptop to passively restore spinal extension and feed stability signals to your shoulder blades.
• Bear Weight Through Your Hands on the Floor: Incorporate exercises that place your hands on the ground—such as bear crawls, renegade rows, or push-ups with an intentional scapular protraction (pushing the floor away) at the top—to activate the serratus anterior and anchor your abdominal wall.
• Program All Seven Foundational Movements: Audit your weekly workouts to ensure you are not just isolating muscles in straight lines, but integrating all seven primal patterns across three planes of motion: Squat, Hinge, Push, Pull, Carry, Reach, and Rotate.
• Target the Upper Posterior Chain Correctly: Because upright squats miss the upper back, intentionally train your spinal erectors by adding overhead resistance (such as an overhead banded squat) or getting your torso parallel to the floor using bent-over rows, Romanian deadlifts (RDLs), bear crawls, or heavy drags.
• Test and Train Trunk Rotation: Assess your thoracic mobility by checking if you can rotate your trunk so one arm reaches the 12 o'clock position and the other reaches 6 o'clock (like an airplane propeller). If rotation is restricted or painful, train anti-rotation first—such as holding a weight on only one side during a single-arm goblet squat—to build rotational capacity safely.
• Use the Seated vs. Standing Neck Assessment: If you have limited neck rotation (normal is roughly 80 degrees), test it both standing and sitting. If your rotation is worse when sitting, focus on releasing and mobilizing your posterior chain (lower back and hips, which are placed under tension when seated); if it improves when sitting, focus on releasing tight front-body tissues (like the quads and hip flexors).
• Front-Load and Back-Load Daily Protein: To support muscle repair, body composition, and blood sugar stability, follow Dr. Thomas's nutritional adjustment (at 5'1", she increased intake from under 100g to ~130g/day) by prioritizing 40 grams of protein at your first meal and 40 grams at your last meal to eliminate late-night sugar and cereal cravings. (Note: Both speakers mention using unpaid products like Perfect Amino and s'mores-flavored David Bars to help hit protein targets, alongside sponsor products Manukora honey, Timeline Mitopure, and BON CHARGE).
• Pair Rehab Treatments with Pattern Correction: If you undergo eccentric loading protocols, dry needling, PRP, or stem cell injections for a tendinopathy or tear, immediately follow the treatment with three-dimensional stability training so the old faulty movement pattern does not re-injure the healing tissue.