Neurodynamics · functional reading
Nerve gliding
Nerve gliding refers to the movement of a nerve relative to the surrounding tissues during movements of the limbs, the spine or the pelvis.
Scientific basis
Peripheral nerves adapt to movement: they move longitudinally and transversely relative to their interfaces, lengthen, and undergo changes in tension. These properties are studied by neurodynamics, notably with ultrasound and in models (Topp and Boyd 2006).
Neurodynamic rehabilitation techniques distinguish maneuvers that mainly promote gliding from others that increase tension (Coppieters and Butler 2008). The links between reduced gliding and the onset of symptoms are still debated.
Blue Portance / SBNFA™ reading
In the SBNFA™ framework, variation in positions and support is part of the conditions under which nerves move relative to their interfaces. No specific effect of a seating device on nerve gliding has been established.
Contribution to the analysis of sitting
Seating analysis does not measure nerve gliding. It observes the variability of positions and the mobility of the pelvis, which determine the range of movements in which nerve pathways are engaged.
Not to be confused with
Fascial gliding, the sliding of fascial layers over one another; Neurodynamic mobilization, a rehabilitation technique; Nerve tension, the tensioning of the nerve, distinct from its movement; Nerve adhesion, a clinical notion that cannot be inferred from reduced gliding; Nerve compression, a load applied to the nerve by neighboring structures; Loss of nerve gliding, covered in this entry.
Related terms
Nerve compression · Fascial gliding · Fascial innervation · Micro-movements · Pudendal nerve · Nerve mechanical tolerance · Postural variability · Endopelvic fascia
Sources and scope
- Topp and Boyd (2006): structure and biomechanics of peripheral nerves, responses to physical stresses (Physical Therapy)
- Coppieters and Butler (2008): analysis of neurodynamic sliding and tensioning techniques (Manual Therapy)
An established biomechanical and neurodynamic concept; the links between reduced gliding and symptoms are debated. Reduced gliding does not prove an adhesion, restoring gliding does not treat pain, and seated micro-movements do not necessarily restore gliding of the pudendal nerve.
Further reading
- Learn more — Article: Pudendal Neuralgia: Why Can a Simple Sitting Position Become an Ordeal?
- Go further — Expert guide: Functional Anatomy and Neuromechanics of the Pudendal Nerve
