A strong ‘hi-ya’ Kiai is commonly associated with spectacular Karate breaking demonstrations and is the subject of the following video. Taken from the Sports Science series the video shows an investigation into the scream of the ‘breaking’ world champion. The scientists test whether the scream is necessary in the production of power delivered into the slabs being broken. They cite the use of screams by weightlifters and tennis players to suggest the use of screaming as a tool to develop power.
The test would seem to provide some proof that screaming is required to maximise power production in Karate breaking demonstration. The trouble with these sort of programs is that they like to generalise from findings with individuals which is obviously flawed. There are many problems with their conclusion that screaming improves your power by 25%, not least the dodgy maths! The bloke in the video managed 500lbs of force more with screaming than without; this equates to a third of the non-screaming amount of 1500lbs, or about 33%. Then there is no consideration of the type of scream, the tennis players scream is shorter than that of the weight lifter. I could go on.
While flawed, the findings are nevertheless interesting, as are the explanation of how the effect works. Although simplistic, the explanation that a scream can enhance “the complex combination of physics, body chemistry and performance psychology” is intriguing and certainly has a ring of truth about, especially given the subjects results.
Although not all tennis players or weightlifters scream during their shots/lifts many do and certainly in other sports people scream too. The Karate Kiai is an obvious example as is the grunt/scream of boxers, such as Ricky Hatton. During my training at Primal I picked up the habit of screaming, or rather barking, while hitting or kicking for that matter. Different to a scream as such I find it an excellent way to concentrate the mind and body interaction into a powerful strike.
There is no one size fits all scream as such, rather the intensity of the sound drives the intensity of the technique which is specific to different techniques. The scream or bark for a kick is different to that of a punch which is different depending on the range or duration, short or long. The actual sound itself can be used to get you going, i.e. enhance the force of a strike. And it can REALLY get you going! You can read more on the Vocalisation post from a while back.
Now, I can’t help but make a noise when I strike and when illustrating a detail often use a sound rather than a word, it can help someone get the idea more easily than a description and certainly enhances a demonstration. Suffice to say I’m a fan of screaming, or barking, and if I did karate breaking demonstrations I’d be screaming, that’s for sure!
Originally posted 2010-10-14 15:32:09. Republished by Blog Post Promoter