The Martial Arts Yell Explained
Are you wondering why people demonstrating martial arts yell at the top of their lungs? What we see in most demonstrations is silly. However, the origin of yelling in martial arts is based on sound physiology and a little bit of psychology. We’re going to discuss everything you need to know. What it is, what it’s actually called, and why martial artists of all styles use it.
Let’s get right to the most important point: why the heck do we do it? The short answer is that it increases power. All martial arts train three things: attack, defense, and power.
We train them for one specific purpose: to end a fight as fast as possible. Without power, attack and defense are useless, so anything that increases power is invaluable.
For self-defense, the penalties for failure can be catastrophic. Maximizing your power output could mean the difference between life and death.
How The Martial Arts Yell Works
All Power Comes From The Ground
I’ve written about some of the physiology and psychology of this subject before, which you can read here. The secret lies in the diaphragm and a little bit of physics. All power comes from the ground. Regardless of the activity, everyone is stronger when they can establish a solid connection to the floor to generate force.
One of the feats of strength I enjoy demonstrating for friends is tearing a deck of cards in half. Not all cards are created equal, and some are more difficult than others. In particular, the cards used in casinos tend to be very difficult. They’re thicker than a standard deck of cards. They’re also coated with a thin film of plastic called an “air cushion finish.” It makes the cards more durable for heavy use. I can tear an easy deck in half while sitting down. But to rip a challenging deck of cards in half, I always have to be standing up. Standing lets me fully connect to the ground through my legs and engage my core.
You see the same thing in powerlifting during the bench press. Even when lying on a flat bench, athletes still need to get good leg drive to lift the most weight. My theory is that your nervous system needs to feel your feet on the ground to generate maximum “neural drive.”
Anatomy of The Martial Arts Yell
While many people might be tempted to only think of a strong core as “six-pack abs,” the six-pack is only the most superficial layer of muscle. The real core is much deeper and can be thought of as a ball. The bottom half of the ball is formed by the bony structure of the pelvis, which is lined with many small muscles (the so-called “pelvic floor”), and the diaphragm comprises the top half of the ball. It’s a large, dome-shaped muscle that separates the heart and lungs from the organs, which rest below in the pelvic bowl. The top and bottom are joined together by a belt of large muscles around the trunk.
When you activate the pelvic floor, the diaphragm, and “the belt”, you create global compression around the abdominal cavity, which is mostly water and therefore cannot be compressed. Instead, you form a very firm fluid ball with the spine supported nicely inside. This helps you effectively transfer force from the ground, through the spine, and out to the arms.
“Something I tell my patients is that when you are using the exhale forcefully (like fogging up a mirror aggressively) it intensifies the contraction of all of your core.”
~Marci Zavala, BS, MSPT, NTP
When In Doubt, Breathe Out
Grandmaster Sam Chin, the founder of Zhong Xin Dao I Liq Chuan, says, “don’t let the movement interfere with your breathing .”
When we need to generate maximum force, during weightlifting, for example, it’s common to perform what’s known as a Valsalva maneuver. During a Valsalva, the glottis (throat muscles) are closed to create a tight seal with a big breath trapped in the lungs, making the entire trunk as stiff as possible.
This “interference” with the breath is entirely appropriate in this scenario. Any given set might only last 15 seconds, followed by the luxury of a prolonged recovery period.
However, during hand-to-hand combat, particularly in a battlefield scenario, where fighting might go on for an extended period, maintaining your breathing is a literal matter of life and death.
Another difference between using the breath in weightlifting and martial arts is that the movements are more of a grind during heavy lifting. For fighting, we only need maximum tension for a split second at the moment of impact for striking or kicking.
The Espresso Press Example
Allow me a brief but relevant tangent here. With the cost of everything going berserk lately, I decided to invest in an espresso maker for the house. For $130, I could save myself $6 per day by making a double shot at home and just adding water and ice when I’m ready for an iced coffee later in the day.
The thing about making espresso is, you need a lot of pressure, between six and nine bars, to be exact. Usually, this is achieved by grinding the coffee very finely, which requires a lot of pressure to pass water through once you’ve tamped the ground coffee down. This can be a problem if you don’t have a grinder that can grind your beans finely enough. The makers of the Flair Neo addressed this problem by designing their basket with a “pressure control valve .”
Essentially it restricts the flow of the espresso into a tiny nozzle, so the plunger is trying to push the liquid through faster than what the little valve will allow. This creates additional backpressure in the brew chamber, and we get to our magic six-nine bars.
When we shout, the glottis briefly contracts, similar to a Valsalva. We get the same effect as my espresso press by shouting, yelling, or grunting. The large muscles of the core are suddenly contracting and trying to force a massive volume of air through the now very narrow valve of the throat. This increases the pressure in our abdomen while at the same time allowing us to breathe continuously during a prolonged period of high oxygen demand. You could think of the shout as a “micro-breath hold” amid a flowing breath, like the old Tai Chi Classics, which tell us to seek the “stillness in movement.”
What’s In A Name?
The Japanese term for the martial arts yell is kiai (氣合). The literal translation is “energy harmony” or “energy unification.” However, I’ve often seen it transliterated as “spirit shout,” which is much less vague. The Japanese word ki (or qi 氣 in Mandarin) means something like “vital energy .”
Hanzi/Kanji characters are often a combination of simpler characters, as is the case with the word ki/qi. We see the character for steam or vapor, but it can also be thought of as the breath. In the West, we have a similar Latin word, anima, which also means spirit or breath, depending on the context. It’s a recognition by the ancients that, in the words of Mr. Miyagi, “no breathe, no life .” In that sense, the spirit shout can be considered the “unification of mind, breath, and body/action as one.”
The Koreans use a very similar term called kihup (기합).
In Mandarin, the term is fasheng (發聲), meaning “vocalize.” When I asked my kung fu brother and native Chinese speaker Jeff Wong about it, he said:
“You see the similarity of the term fasheng (pronounced fa shung), or fat sing in Cantonese, to fajin 發勁 (fat ging in Cantonese). Fa 發 is to issue or manifest.
Kiai in Japanese Kanji (Chinese characters) means ‘breath+harmonization’, which is the true purpose of fasheng. However, kiai doesn’t really describe the action, whereas fasheng is literal, with the purpose obscured.”
In The Zen Way To The Martial Arts, the great zen master Taisen Deshimaru says “The kiai is that same (full) exhalation, combined with a loud voice; the sound has to spring out naturally from the depths of the body, and for that one obviously has to know how to breathe, which few people do.”
“One cry, one instant containing all space-time, the entire universe.”
Related Post
At the beginning of this article, I mentioned how most of the dramatic screaming done in modern martial arts demonstrations is ridiculous. The keyword is “dramatic”; much like Will Smith “slapping” Chris Rock at the Academy Awards, it’s strictly for performance. The performer uses a high-pitched yell coming from the upper chest most of the time. When done this way, the mechanics are all wrong, and the long, drawn-out nature means the glottis isn’t constricted; we don’t get the appropriate backpressure we’re looking for. At best, this type of screaming can help get you into a heightened state of arousal.
Whether you choose to vocalize with a “ha,” “hut/hup,” “oss,” or simply grunt or hiss, the sound should be short and sharp to contract the glottis and timed to coincide with the impact of the blow.
Conclusion
So there we have it! Everything you need to know about what the martial arts yell is all about.
In the traditional Japanese arts, it’s referred to as a kiai. In kung fu, we call it fasheng. Western arts like boxing don’t have a specific term, but they still do it, often simply grunting or hissing.
Although holding our breath increases trunk stability and thus power, holding the breath is inappropriate in a hand-to-hand combat scenario. This is because the length of time we need maximal trunk stability for self-defense is much shorter. The length of time we may be engaged with an opponent is much longer than we might experience during a set of strength training and without the benefit of nice, safe rest periods to recover any oxygen debt.
Getting the most out of every action was critical for the old masters when it meant whether or not they would live to see another day. The act of shouting engages the deep core muscles and the diaphragm in particular. A nice stiff core supports the spine and is an effective bridge to transfer force from the ground.
Lastly, remember that the shout should be some sort of short, sharp sound when done correctly. While other sounds can be made, like heng, om, or even simply humming, these kinds of breathing/sounds are more appropriate for relaxation and recovery. For power, we want a sound that helps contract the glottis and the core muscles to get the kind of deep abdominal pressure we’re looking for.
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