The Hidden Key to Yi Jin Jing Qigong: Understanding Huang (黃)
Note:
Traditionally, Yi Jin Jing (易筋經) isn’t a specific set of exercises. It’s a collection of guiding principles for internal transformation. The exercises most people associate with it are a great way to learn those principles, but you can apply them to whatever training method you already use.
If you have been practising Yi Jin Jing for a while, you may have noticed that the change in the body comes from more than stretching the postures. The transformation happens in a tissue that many modern classes mention only in passing: Huang.
In the classical Yi Jin Jing texts, Huang is the main tissue being trained. Understanding Huang and these principles allows the practice to work at the level of connective tissue change.
What Is Huang?
Huang is written with the Chinese character 黃 (huang) and is often called 黃膜 (huang mo), or “yellow membranes.” It refers to the thin, elastic, fascia-like connective tissue that fills the spaces inside the body, wraps and suspends the organs, and lies between the muscles and the bones. It acts as the internal web that connects everything together.
Why Huang Is the Focus of Classical Yi Jin Jing
Yi Jin Jing centres on changing the quality of the body’s connective tissues so that qi can flow freely and the whole system becomes springy and strong. The classical commentaries state: “To train the sinews you must train the Huang; to train the Huang you must train the qi.”
The training sequence follows these principles. First you relax the muscles so they hang off the bones, following the idea of “bones up, flesh down.” This creates a stretch in the Huang. Qi then mobilises into the stretched Huang and conducts qi into the sinew channels, opening the meridians indirectly. When the Huang is trained, the body develops the drum-skin quality. The sinews become taut yet elastic. Qi flows instantly, strength feels springy rather than rigid, and the whole body feels buoyant.
How to Train Huang
You develop Huang by applying the principles inside whatever standing or movement practice you already know. Keep the skeleton lightly lifted while the soft tissues sink. Relax the large muscle groups so they lengthen and hang off the bones. Use ting (聽) (active internal listening) together with song (鬆) (mental release) so you can feel the subtle connected stretch that travels through the body. That is the Huang waking up. After each posture, pause and notice where the body feels full, warm, or elastic. That sensation is qi filling the Huang. Many people first notice the difference when they return to simple standing practice.
My White Eyebrow Kung Fu teacher always emphasised that real jin (勁) power comes from the same principles found in classical Yi Jin Jing. He taught that you first fully song (鬆), completely releasing the muscles so the Huang can stretch and store energy like a drawn bow, and then use a sharp tan (彈), a sudden spring-like release. That explosive tan is what turns the stored stretch in the Huang into usable power.
Huang and Modern Fascia Talk
Many teachers talk about fascia. Huang is similar but more specific in the classical context. It is the space-filling, organ-suspending, qi-conducting membrane that is stretched and energised when following the principles of Yi Jin Jing. Training Huang creates the internal change described in the classics.
Why This Matters for Your Practice
Stretching the muscles and tendons gives a healthier and more flexible body. Training the Huang by applying the classical principles of alignment, relaxation, and internal listening produces the result described in the ancient texts: a body that is strong yet springy, full of qi, and aligned with the meridian system. The popular 12-movement Health Qigong Yi Jin Jing form works more effectively once these principles are added.
Huang is felt throughout the entire body. Once you start training it through the principles rather than only the movements, the body feels lighter and more connected. The classics describe how training the Huang changes the tendons.
References
Deqian, S. (釋德虔). (1995) Shaolin Monastery Martial Arts Encyclopedia (少林寺武術百科全書) (Vols. 1–4). (References Yi Jin Jing 12 forms under soft qigong in Volume 4).
Mitchell, D. (2020, April 10). 易筋經 · Yi Jin Jing (Changing the Tendon) Process Theory [Video]. YouTube. LINK
Shahar, M. (2008). The Shaolin Monastery: History, religion, and the Chinese martial arts. University of Hawai‘i Press.
Yang, J.-M. (2000). Qigong, the secret of youth: Da Mo’s muscle/tendon and marrow/brain washing classics (2nd ed.). YMAA Publication Center.
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