Pain Science - Biopsychosocial Model of Pain

Sep 29, 2026

Pain is more than a damaged body part. Explore the biopsychosocial model, how trust and communication shape outcomes, why pain intensity can mislead, and how stress fuels sensitivity. A practical knee case covers soft tissue work, isometrics, graded exposure, and progressive loading, alongside lessons on professionalism, anatomy, and when trainers should refer out.

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INSIGHT

Pain Requires More Than A Body Part

Pain requires looking beyond the injured body part to the person’s biology, psychology, and social context.
Chris Hitchko connects knee discomfort with ankle mobility, hip function, stress, expectations, and the patient’s ability to tell their story.

ADVICE

Listen Before Chasing Mobility

Listen fully before proposing a diagnosis or exercise, because interrupting an anxious client can increase threat and reduce trust.
Avoid automatically prescribing long mobility routines; assess the whole movement system instead of chasing one isolated limitation.

INSIGHT

Pain Intensity Does Not Equal Damage

Pain intensity does not reliably measure tissue damage; the nervous system filters danger through competing sensory and contextual signals.
A severe paper cut can hurt more than a fracture, while a person may walk calmly with a pickaxe through the trapezius.

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Pain can make smart people do weird things: avoid a squat they used to own, chase random mobility drills, or assume an MRI finding is the whole story. We want to cut through that noise with a coaching-first, pain science grounded framework that actually helps clients move again. We start with the biopsychosocial model of pain and why the way we show up matters, from being on time and setting expectations to letting a client finish their story without getting interrupted. That “front end” changes threat, trust, and outcomes more than most trainers realize.

From there we dig into how pain works, including the evolution from a purely biomedical model to gate control theory, and why pain intensity doesn’t always match tissue damage. We talk about nervous system sensitivity, central amplification, and how stress and context can turn the volume knob up. Along the way, we share practical language shifts like using “discomfort” and avoiding scary labels that can lock a client into fear-based movement.

We also walk through a knee pain case and the step-by-step process: check low-hanging fruit like terminal knee extension, use soft tissue mobilization strategically to calm guarding, then lock in the win with 60-second isometrics, exposure therapy, and progressive overload. We close with what professionalism actually looks like in the fitness industry, why anatomy matters, and how to stay in scope by knowing when to refer out to a physical therapist or doctor.

Subscribe for more conversations on pain science, soft tissue work, rehab-informed strength training, and coaching skills, then share this with a trainer who needs it and leave a review. What’s the biggest pain myth you want us to tackle next?

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