블로그/칼럼 요변성 추나 · 체형교정
블로그 2026년 6월 9일

Chuna That Does Not Crack Bones — The Principle of Thixotropic Chuna

Dr. Dr. Heo Ji-young, Director of Kyunghee Meerae Korean Medicine Clinic, Gwangjin
의료 감수 Dr. Heo Ji-young Representative Director · KMD

"When you get Chuna, don't you crack the bones with a snap?" — I get this question a great deal. I do not do it that way.

The Chuna I practice is thixotropic Chuna. Instead of snapping with strong force in an instant, it uses the property by which stiffened tissue softens on its own, returning things slowly. It is an unfamiliar word, so it may sound difficult, but the principle is quite intuitive. In this article I will explain it with a diagram.

What is thixotropy?

Picture stiff honey or jelly. Left alone it is firm, but stir it slowly and it becomes soft. This property of softening when given a steady stimulus is called thixotropy.

The fascia and connective tissue in our bodies have the same property. Even tissue that has been stiff for a long time gradually becomes supple when a soft, sustained force is applied in the right direction.

The principle of thixotropic Chuna — the four steps in which stiffened tissue becomes supple under a gentle stimulus and then recovers its balance

How is it different from Chuna that cracks?

  • It uses sustained force rather than an instantaneous force. Because nothing is snapped suddenly, there is less tension and burden during the treatment.
  • It does not rely on sound. The familiar "crack" is only the sound of a gas bubble popping inside the joint; it is not a signal that the correction went well. Thixotropic Chuna is measured by the actual change of the tissue softening, not by sound.
  • It restores alignment after the tissue has released. Rather than forcing things into place, the correction is made in the direction the body accepts.

Body structure and pain are connected

Much pain arises not from a specific area itself but from the overall structure and posture of the body. When the pelvis is twisted, weight shifts to one side, and that burden spreads to the knee, ankle, and lower back. That is why I do not look only at where it hurts; I check the balance of the whole body structure as well.

After softening the stiffened tissue and restoring the twisted alignment, I guide you together on posture habits and simple exercises so that the state is maintained. Correction is not something that ends in a single session — it includes the process of managing the body so it does not stiffen again.

I recommend this for

  • Those who want an adjustment but have been afraid of the strong, cracking method
  • Those who have felt that they return to the way they were soon after an adjustment
  • Those who feel pain recur because of posture or body structure

If you feel any discomfort during the treatment, tell me at any time. I adjust the intensity and proceed only as much as your body accepts. Chuna therapy is covered by health insurance up to a set number of sessions per year, and I will explain the details at your visit.

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Dr. Dr. Heo Ji-young, Director of Kyunghee Meerae Korean Medicine Clinic, Gwangjin

Dr. Heo Ji-young Representative Director · KMD

A graduate of the College of Korean Medicine at Kyung Hee University, with master's and doctoral degrees in pathology — the mechanisms of disease — from its graduate school. Later served as a research professor in the university's Herbology department, studying medicinal substances. Studying both disease and medicine from both sides is the foundation of this practice: explaining "why a given medicine works for a given illness" in the language of both pathology and pharmacology. Explains autonomic, chronic, and intractable conditions — and structural problems of the body — in the language of modern science, and proposes treatment matched to the cause. Has taught prescribing and clinical practice to Korean medicine doctors for over ten years, and is a co-author of "Korean Medicine, Explained by Korean Medicine Doctors," selected for the 2018 Sejong Books list (general category).

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