DNS – the ‘blueprint’ for function

Both the structure of the body (the bones, muscles, tendons and ligaments) and function (how we move) are key to understanding human pain and movement dysfunction.

Human structure is typically well understood. We generally know what ‘normal’ and ‘abnormal’ structure is and using imaging techniques (e.g. MRI) structural problems such as bulging discs, worn cartilage or torn tendons can be precisely identified.

What normal function is, however, has been more controversial. There have been many schools of thought over the years. We have probably all been told at some time to “pull your shoulders back” or ”tuck in your stomach” but is this actually how we are designed to stand and move? Or is this perhaps doing us more harm than good?

This is where the DNS comes in.

DNS analyses how the nervous system matures and muscle function develops after birth. This model defines ideal posture and movement patterns from a developmental perspective.

It gives us functional norms.

So, in the same way that problems of structure can be precisely identified, we can now do the same for function of the movement system.

Comparing a patient to these developmental or functional norms provides a valid and accurate assessment of how well, or how poorly, they stabilise and move and why deviations from the ideal pattern may have occurred.

Poor/ Immature Pattern

Here you can see an immature or ‘poor’ pattern of stabilisation in both baby and adult. Note the similar pattern in both pictures – sagging lower back, elevated shoulders and jutting of the chin (red arrows). This pattern will translate to poor static posture and predispose to injury.

Left Picture from: Kolar, P. (2014). Clinical Rehabilitation. Alena Kobesová

Good/ matured pattern

Here you can see a matured or ‘good’ pattern of stabilisation in both baby and adult. Note the similar pattern in both pictures – neutral position of low back and head, shoulders depressed (green arrows). This pattern will translate to good static posture and a lower risk of injury.

Left Picture from: Kolar, P. (2014). Clinical Rehabilitation. Alena Kobesová

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