Structural Pattern Recognition
Observation Is Not Explanation
How to turn what you notice in a client into something you can test.
Nicholas Barbousas, structural assessment educator with over 30 years of clinical and teaching experience
- Updated - October 15, 2026
Every assessment begins with noticing.
A shoulder sits higher on one side. A pelvis appears rotated. One foot takes more load. Someone turns more easily in one direction than the other. A familiar movement reproduces a familiar symptom. Tissue feels different from side to side.
These observations may be useful, but none of them explains itself.
A visible asymmetry does not tell us why it is present. A movement difference does not establish what caused it. A tissue finding does not, on its own, tell us whether it is contributing to the person’s symptoms or simply reflecting the way that individual has adapted over time.
This distinction is central to Structural Pattern Recognition.
SPR begins with observation and treats it as the start of the reasoning. What we notice provides information that can help shape a clinical hypothesis. The usefulness of that hypothesis depends on whether it can then be examined, challenged and revised in the person in front of us.
What did you actually observe?
Imagine noticing that a client’s right shoulder sits higher than the left.
The observation itself is simple. The right shoulder is higher.
What comes next is rarely simple. Several explanations may immediately come to mind:
- The upper trapezius may be working differently.
- The rib cage may be organised differently on that side.
- The shoulder position may be compensating for something happening elsewhere.
- It may relate to the person’s neck symptoms.
- It may be a longstanding variation that has little clinical importance.
All those possibilities are interpretations.
Clinical reasoning requires interpretation. The difficulty begins when the interpretation becomes fused with the observation and starts to feel like a fact.
A practitioner can observe something accurately and still be wrong about what it means.
That distinction matters because posture and movement are easy to overread. Once we have noticed a pattern, particularly one that fits an explanation we already favour, it becomes tempting to treat the pattern as evidence for the explanation itself.
The higher shoulder starts to become “the problem.” The rotated pelvis becomes “the cause.” The stiff area becomes “the driver.”
At that point, the assessment is no longer simply describing what is present. It is making a claim that still needs to be tested.
Observation still matters
Skilled observation can tell us a great deal about how someone is organising themselves. It may reveal differences in load, movement, support and strategy. It can show how one task differs from another and where movement appears limited, guarded or redirected.
Those observations can be extremely useful because they help narrow the questions worth asking.
What they cannot do is determine clinical relevance on their own.
One of the recurring lessons of practice is that patterns do not carry the same meaning from one person to another. A visible asymmetry that appears significant in one client may be completely benign in another. A movement strategy that looks inefficient may in fact be the person’s most effective way of working around an old injury or structural limitation.
Consider a client with recurring neck discomfort and an obvious difference in shoulder height. At first glance, the higher shoulder can easily become the focus. But when you test movement, changing the shoulder position itself may make very little difference.
What becomes more interesting is what happens when the rib cage and upper trunk are given a different option for rotation and support. If the neck then moves more freely, or the symptom changes, the original observation has not been discarded. Its meaning has changed.
The shoulder asymmetry was real, but it was not, by itself, the explanation.
The body adapts. Some adaptations are costly, some are useful, and many are simply part of how that individual has learned to function.
So, the more useful question is whether that pattern has anything meaningful to do with the problem being investigated.
From observation to hypothesis
This is where Structural Pattern Recognition becomes a reasoning process.
The sequence is the Reasoning Loop:
The Reasoning Loop. Observe, Hypothesise, Test, Intervene, Re-check. Hypothesise sits between observing and testing on purpose: it keeps what you saw separate from what you think it means.
The value of the sequence lies in what it prevents us from doing too quickly.
After observing something, we form a working hypothesis about what it might mean. That hypothesis may involve local tissue, movement strategy, load distribution, compensation or a relationship between regions.
The important point is that the hypothesis remains provisional. It is a working idea that helps decide what should be tested next.
Suppose someone presents with recurrent neck discomfort, and you notice that rotation through the upper trunk differs substantially from side to side. That observation may suggest that the neck is working within a broader movement strategy. It may also turn out to be incidental.
At that stage, the practitioner does not yet know.
The task is to find a way of testing whether the relationship being proposed matters.
Testing for clinical relevance
Testing is where an observation begins to earn its importance.
- If a movement restriction seems relevant, can changing that movement alter the task or the symptom response?
- If one region appears to be influencing another, can changing the way it is supported or organised produce a meaningful difference?
- If a tissue finding seems important, does modifying that tissue change movement, comfort or function in a way that supports the original idea?
The purpose is to find out whether the proposed relationship is useful enough to guide what happens next.
This is particularly important when dealing with asymmetry.
People are not symmetrical, and there is no reason to expect them to be. Differences may reflect sport, occupation, previous injury, preference, anatomy or long-term adaptation. Some asymmetries are simply normal variation.
That means asymmetry should not automatically be treated as dysfunction.
A finding becomes more interesting when changing it, challenging it or comparing it under different conditions tells us something about the person’s current problem.
From symptom to system
Symptoms still deserve attention.
If someone presents with shoulder pain, the shoulder should be assessed. If the neck is painful, the neck matters. Looking more broadly should not become an excuse to ignore the symptomatic area.
At the same time, the painful region may not always be the only useful place to begin.
Sometimes the local tissue is central to the problem. Sometimes the symptomatic area appears to be responding to how neighbouring regions are moving or loading. Sometimes the wider pattern seems relevant. Sometimes it does not.
In SPR, these relationships between regions are called Interconnective Drivers: the ways one area can shape the load, movement or demand placed on another.
SPR makes room for a broader hypothesis when the findings justify one, without assuming the symptoms come from somewhere else.
The Clinical Triangle organises that hypothesis around three things: what may be influencing the pattern, what may be compensating around it, and what is happening to function. These are the Driver, Compensation and Function.
The Clinical Triangle. Three working categories that organise what you're seeing.
Driver
Your working hypothesis about what may be organising the pattern. Always provisional.
Compensation
Function
How the person is actually performing: Capacity (what they can do), Intention (what they’re trying to do) and Structural Demand (what the task asks of their structure).
The Clinical Triangle organises the hypothesis. The Reasoning Loop challenges it.
The terms are useful only if they remain provisional. A suspected driver is not the same as a proven cause. A compensation is a strategy, and its value depends on what it costs and what it makes possible. A structural finding is not important simply because it is visually obvious.
These categories organise the thinking, and the thinking still has to be tested.
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Intervention can also tell us something
Assessment and treatment are often described as separate stages, but in practice the boundary is not always so neat.
A well-chosen intervention can itself become part of the investigation.
If the working hypothesis suggests that improving movement through a particular area should make a task easier, then an intervention gives us a way to examine that idea. If we alter support, movement or tissue behaviour and then reassess the task, the response provides more information:
- Did the movement change?
- Did the symptom response change?
- Did the task feel easier?
- Did something we expected to change remain essentially the same?
A positive response can strengthen confidence in a hypothesis, but it still does not prove where the problem began. A lack of change is equally valuable because it may tell us that the original explanation was too simple, incomplete or wrong.
This is where clinical reasoning shifts from defending the first idea to refining it.
Keep, modify or reject
After the re-check, the practitioner has another decision to make:
- Keep the hypothesis if the findings continue to support it.
- Modify it if part of the explanation appears useful but another part does not.
- Reject it if the expected relationship does not hold up.
Rejecting a hypothesis is reasoning doing its job.
The more difficult mistake is to hold on to an explanation simply because it seemed convincing at the beginning. Once a practitioner has decided that a posture, asymmetry or movement pattern is significant, it becomes easy to interpret every new finding through the same lens.
That is how confirmation bias enters the process.
Re-checking helps prevent that by forcing the original idea back into contact with what is actually happening.
The question after observation
Observation is most useful when it leads to better questions:
- Why does this movement differ from the other side?
- Is the difference consistent across tasks?
- Does the pattern change with support, position or load?
- Does changing one region alter what happens somewhere else?
- Is the symptomatic area creating the strategy, adapting to it, or simply participating in a larger pattern?
- Which of these findings appears important enough to test first?
Questions like these change the nature of assessment.
Instead of collecting abnormalities, the practitioner begins investigating relationships.
That is the deeper purpose of Structural Pattern Recognition.
SPR uses what can be observed to develop better clinical questions, and gives you a process for testing them before you become attached to the first explanation.
The body works as a connected system, and only some of the relationships we observe will be clinically important. The harder task is working out which relationships matter in the person in front of us and which are incidental, adaptive or simply part of normal variation.
I will be exploring this question further at the ATMS National Fascia Symposium in Sydney on 27 February 2027, in my presentation, From Symptom to System: Structural Pattern Recognition in the Connected Body.
The premise is that careful observation gives us a better place to begin, provided we are willing to test what we think we have seen.
CURRENT SPEAKING ENGAGEMENT
ATMS NATIONAL FASCIA SYMPOSIUM 2027
From Symptom to System:
Structural Pattern Recognition in the Connected Body
Nicholas Barbousas will present at the ATMS National Fascia Symposium in Sydney on 27 February 2027.
The presentation explores how practitioners can move from observing relationships across the body to forming and testing useful clinical hypotheses.
Sydney · Saturday 27 February 2027 · 1:15–1:55 pm
About the author
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