Sitting Posture, Hypermobility, and Fear-Avoidance – Movement Debrief Episode 72

Movement Debrief Episode 72 is in the books. Below is a copy of the video for your viewing pleasure, and audio if you can’t stand looking at me. Here is the set list: Does sitting slouch = extended? Why do people appear flexed when they sit? What is going on when someone sits slouched? How should I work with someone who has a hypermobility syndrome? What is Ehlers Danlos? Are isometrics a worthy starting place? What about unstable surface training? What is fear-avoidance? How do I go about using education to reduce fear avoidance? What other tactics do I use to mitigate fear avoidance?

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The Sensitive Nervous System Chapter V: Neurodynamics

This is a summary of Chapter V of “The Sensitive Nervous System” by David Butler. Intro Neurodynamics is the study and relationship of nervous system mechanics and physiology. The testing protocols for neurodynamics assess the nervous system’s ability to lengthen, glide, and change amongst interfacing structures. When discussing neurodynamics, it is important to think of the nervous system as a continuum. Mechanical, electrical, and chemical changes in one part of the nervous system affect other related parts. Gross Movements and Dynamics When having a nervous system, the following qualities, movements, and buffering capabilities are necessary: Slide, glide, strain. Elongate (think gymnasts) and return from elongated position. Compress (ulnar nerve during elbow flexion). Stength (kicking a field goal). Jolting (whiplash). Repetitive forces Bending Fluid/chemical selectivity. Neural Connective Tissue These include the meninges, nerve root complex, and peripheral nerve structures. Broken down as follows: Meninges Dura mater (outer, tougher) Arachnoid mater Pia mater (inner, thinner) Nerve root complex Root Sleeve Dorsal and ventral roots DRG Spinal nerve. Peripheral nerves Epineurium Perineurium Endoneurium Mesoneurium – Sheath that surrounds a nerve. Contracts like an accordion to glide along adjacent tissues. Can become fibrotic with injury. Important Attachments Meningovertebral ligaments – anchor down to spinal canal, which could become symptomatic. Rectus capitus posterior is connected to the dura mater between the occiput and atlas; helping the dura fold. Makes you wonder what you are truly doing when you release this structure. The sympathetic trunk’s proximity to the spinal column makes it susceptible to increased loads

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