[Part 5] Regain the 'Glide' of the Sciatic Nerve: Theory and Practice of Nerve Mobilization

Up until the last installment, we introduced tests to identify local nerve issues such as the 'posterior femoral cutaneous nerve' and the 'superior cluneal nerve' in the buttocks.

In this fifth installment, we will focus on a famous nerve that everyone has likely heard of at least once: the **'sciatic nerve'.

Stubborn numbness that resonates from the buttocks to the back of the legs, and even to the front lines. If the cause of this is not stenosis of the lumbar vertebrae, but rather 'poor nerve gliding',then there is a special approach I want you to try right now.
It is a technique called'nerve mobilization (nerve slider)' that physical therapists, who are rehabilitation professionals, use in clinical practice.

Nerves are not rubber bands. They are meant to 'glide' through tunnels.
Many people tend to think that nerves are things to be 'pulled and stretched.' However, that is a big mistake. If you force a nerve to stretch by pulling it hard, a defensive reaction will occur instead, worsening the numbness and pain.

In fact, nerves have a structure that allows them to 'glide' (slide) smoothly back and forth through the 'tunnels of muscles and fascia' in the body, like a rope in a tug-of-war.

When adhesions (sticking) occur somewhere in these tunnels and the nerve can no longer glide smoothly, the nerve becomes taut during movements like walking, causing that intense 'leg numbness' or 'intermittent claudication' (pain when walking).
The self-check I am about to introduce is a test to intentionally create that 'glide' on the spot and verify if your symptoms change.
Sciatic Nerve 'Gliding Self-Check' & Exercise
This is a highly effective method for those who have pain or numbness from the buttocks to the outside of the legs, or even the front line of the lower limbs.

Step 1 (Inducing pain):
First, as per the basics so far, lie on your back, lift the painful leg (e.g., right leg), and then tilt it to the left (inward) and hold for 3 seconds. At this time, remember the intensity of the 'usual pain/numbness' that runs from your buttocks to your leg.

Step 2 (Self-treatment to glide the nerve):
Perform this while sitting on a chair.

Extend the painful leg forward, and while straightening the knee, **'flex your toes upward (toward you), and at the same time, tilt your head and back backward to look at the ceiling'.
Next, lower the extended leg (relax it), and at the same time, **'round your head and back forward to look at your navel'.

Repeat this linked movement of 'extending the leg and looking up' ⇒ 'lowering the leg and looking down' alternately at a comfortable pace for 30 seconds. By moving your head and legs at the same time, you can safely slide (glide) the sciatic nerve 'up and down' within the tunnel without pulling it.

Step 3 (Re-test):
Try lying on your back again, lifting your leg, and tilting it to the opposite side.

[Judging the results]
If the pain you had earlier disappeared or was reduced to less than half after just 30 seconds of this 'nerve gliding exercise'.

It is proven that the true culprit of your symptoms was not the narrowness of the spinal canal itself, but'sciatic nerve gliding dysfunction (poor gliding)'!

Continuing every day will naturally widen the tunnel.
If the numbness eased with this test, no matter what you were told at the hospital, your nerves are not dead yet. They are just 'caught' in their passageway.

Doing this exercise even occasionally will improve nerve gliding. By repeating it diligently every day, there is a good chance that the adhesions in the nerve's passageway will peel away, and the numbness during walking will gradually be eliminated from the root.
Next time, we will delve deeper into another blind spot that never shows up on imaging: 'Peeling off the fat layer!? The relationship between fascial adhesions and numbness'.

[Information on Seitai (Bodywork) and Self-Pay Rehabilitation]
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Capturing and moving the single long sciatic nerve totally from the head (center) to the tips of the toes (periphery). This anatomical connectivity is the strength of our salon. Let's start rehabilitation together to turn 'afraid to walk' into 'walking is fun'.