Taekwon-Do Science: Sine Wave Motion #1

[@marting6037]

Another superb presentation. I truly do not understand why some viewers feel compelled to down-vote content of this caliber; jealousy or possibly inability to comprehend well described subject matter? Oh well, i guess it takes all kinds.

[@scarred10]

its complete nonsense and not in the least bit scientific,its called psuedoscientific

[@undixgalore]

Very interesting video series, excellently explained. Thank you. The sound levels of the intros and outros, however, are painfully high compared to the speech in the videos.

[@DonatoNardizzi]

Thanks. Yes, you are right, the sound levels are too high in the intro and outro. I have corrected this in my recent videos.

[@Liquidcadmus]

excellent video explaning this often missunderstood concept. regards.

[@streetsurfer00710]

I used to train in ITF TKD back in the ‘80’s with Master Han Cha Kyo for many years. No matter how much I genuinely try to understand sine wave, it makes no sense to me. In theory in all sounds great, but in reality it’s a waste of time and misguided in my opinion. And I say this out of real concern for direction of ITF TKD and not just to troll or hate. If sine wave is something natural, which I can see to some degree, then why spend all this time and energy emphasizing it because this excessive focus on sine wave leads to over-exaggeration of movement for many students of TKD, which then becomes unnatural. Also, this over-emphasis on sine wave leads to telegraphing your move, which any real fighter knows to avoid. I was taught and still believe that true power comes, not from unnatural, over-emphasis of sine wave, but from hip power. Now, I’ve seen some students over-exaggerate hip twisting motion as well, which slows you down. True generation of physical power comes from subtle fluid and connected motion generated starting from the balls of the feet to ankle into the knees, to hip twist, to shoulders, to wrist, and finally into the punch or block. It’s like a whip whose motion starts at the handle. The power of Bruce Lee’s famous one inch punch does not come from sine wave motion. Even Wing Chun practitioners know that economy of motion can lead to tremendous power when they’ve learned the more important concept of “rooting” to the ground. True Ki power is so subtle and minute that it is barely perceptible to the eye and the average observer would not detect it. Sine wave is anything but true Ki power from what I can see. As a former serious and passionate ITF TKD student and instructor, I find the over-emphasis on sine wave embarrassing.

[@justabill5780]

However, the use of the "sine wave" motion when performing martial arts techniques is wasted motion. It requires an energy loss/waste and introduces inefficiency into the technique performed. It also telegraphs any techniques performed while using the "sine wave" motion. Introducing the Sine Wave into ITF Taekwon-do was one of the General's greatest blunders. And it's unfortunate that it is still a requirement and part of the "Theory of Power".

[@Gieszkanne]

Some chinese styles force this by stomping. Most famous for it is Baji Quan. There once was a chinese documentation with scientiffical measurment that shows that this stomping realy increased power.

[@DonatoNardizzi]

Thank you for this interesting information. I will continue making more videos on this series about Sine Wave. I will explain the scientific theory on why lowering the body delivers more power.

[@hsinhaowang]

It's the dropping of weight into the attacks. So long as the hand hits the target before the foot hits the ground, all the weight and s transferred. Jack Dempsey's falling step works under the same premise.

[@alvinyen8308]

Wow,i need your all video

[@valleyviewtaekwon-do3141]

I love your intro animation Grand Master Nardizzi Sir!

[@DonatoNardizzi]

Thank you. It was done by Miren Patel. I was impressed how he turned a photo into a moving animation.

[@JillSingleton-mg6zs]

Just showed this to my Year 12 Advanced Maths class. Great to see Maths outside the classroom!

[@landoftheascendingdragon]

very interesting way of teaching!!

[@robertsowinski2669]

good staff !!!!

[@captainbeaver_man903]

Your "science" is very unscientific. There are some great peer reviwed papers on athletics and kinetic linking that actually prove the signwave can not add to forward power generation. Downward power though, definitely.

[@thedarwinist672]

Plus it telegraphs

[@sekolahonlineteknikotomotif]

So there's no power or force gain there ya?

[@taylorbee4010]

Weight sinking?

[@alecapin]

1:41 that graphic is similar to a cosine wave.

[@DonatoNardizzi]

A cosine wave is identical to a sine wave except for the phase. General Choi gave the name of the motion because of it's similarity to a sine wave regardless of the phase.

[@abdullahmohan9107]

​Yes you are correct. It is just a phase delay of sine. good master keep it up. I follow your channel about I joined my taekwondo ITF class before 3 months. Really I am blessed to see your videos. ❤❤❤❤.i love you

[@ilikezappa3268]

I really dislike this idea. A boxer would surely punch your face before you got half way towards the block ,which the ITF have slowed down with the springy motion. I notice they don`t do it when they spar . Why ? Because it would destroy your ability to fight . Why spend your energy teaching people to do something which is useless ? It also looks awful. The ITF have some brilliant fighters,however I think someone spiked General Choi`s tea with some Psilocybin when he invented this idea. Sorry if that sounds mean ,but I really don`t get it .

[@johnmaisonneuve9057]

Very questionable science as it applies to TKD. Actually as a self-defense it actually provides too much motion to counter attract. Stop the bouncing and actually will look much better.

[@amberharmsen2497]

Theres a reason people should bounce when it comes to combat fighting Why is it bad to do the same in the street when its proven to work

[@yveslegault6825]

Why is it that karate, or most martial arts for that matter, is considered a religion? Because one has to shut up and listen to the master as he can't be wrong? Religion is the business part of spirituality nobody never needed.

[@DonatoNardizzi]

I can only speak in relation to Taekwon-Do which is definitely not a religion as we do not worship a god or superhuman controlling power. We do however show respect for our seniors (in grade and age) but this should not be confused with worship. Taekwon-Do welcomes students from all cultures and with any religious or non religious beliefs. I understand why you would interpret the ethos is 'to shut up and listen to the master as he can't be wrong' because there are some instructors that have this attitude. A good instructor should be honest and have humility. They should admit when they are not sure of the correct answer. They should welcome students to question what they are teaching so that they can reassure the student that what he/she is teaching is based on sound logical principles. You may have a good point in saying 'Religion is the business part of spirituality nobody never needed' but I would say it is more the relgious institutions that are at fault for creating the business side of spirituality rather than the religions itself.

[@raimahendot9544]

i am blue belt in itf

[@redsamurai9703]

Day before maths test..

[@스윗워터]

For those who are misunderstood or negative about sinewave, this video will be helpful kzbin.info/www/bejne/aHywaGiMqZuclas

[@scarred10]

The video is pure nonsense

[@yveslegault6825]

Why is it that taekwondo masters are not winning anything in MMA fights. One can't call this science under the pretext he's using sinuses. I learned about trigonometry when I was 13 yares old at school. Nothing magical there. I do know that if I catch you doing this, it will be a hell of a good trow... against you! Lucky for you your competitions are in close circuit. You cant compete against an outsider. By the way, is not the straight line the shortest route between two points?

[@DonatoNardizzi]

Most Taekwon-Do masters are not intetested in competing in MMA or any other combat sport for that matter. Taekwon-Do is a martial art not a combat sport. My most senior student is an 8th master in Taekwon-Do and he competes in MMA professionally. He wins nearly all his fights. He is aged over 50yrs now and he still beats opponent half his age. Taekwon-Do ia a useful discipline for MMA. I run MMA classes in my dojang and both instructors are professional MMA fighters and both of them train in Taekwon'-Do to help them improve. Your comment about trigonometry is odd. I am not trying to be magical, I am just trying to help Taekwon-Do students get a better understanding of sine wave motion. Yes, the straight line is the shortest route from A to B but it is not always the best route. For example, a hooking punch or a turning kick do not move in straight lines. Even when you walk or run you don't move in a straight line. Your head will bob up and down slightly because your legs bend and work like springs, just like they do with sine wave motion in Taekwon-Do.

[@Sanctus2007]

@@DonatoNardizzi "Even when you walk or run you don't move in a straight line" But you don't bounce in an exaggerated way neither like you do in your forms or patterns. "Your head will bob up and down slightly" Yes that's what we call natural movements, yours are exaggerated. "your legs bend and work like springs just like they do with sine wave motion in Taekwon-Do". Nope is not like your TKD motion . If I fight using your sine wave motion I will be knockdown before I had finished a sine wave, as you do in a pattern. Your sine wave may have some power ( I have not seen any scientific journal study done for martial arts) but is that power is real, the question is if that power is significantly greater than the power that is generated doing the movement without sine wave. And if is significant it worth it? With sine wave, you remove from the forms other attributes like explosiveness, speed, speed-coordination, etc. When I see a form or pattern done with the sinewave I just see a very very slow sequence of movements like 1,2 take a picture now, 1,2 take another you get the point. But I like to learn so if you have a book or any scientific article that said that sine wave produces more power in a TKD movement that TKD movements prior to the introduction of the sine wave, please let me know.

[@scarred10]

@@DonatoNardizzi tkd is both a martial art and a combat sport but most of all a way to enrich your life and society.However, dont pretend its combat effective.Id be very interested to know what 8th dan over 50 yrs old is fighting professionally in mma.It is virtually unheard of for someone that age to be still fighting,it would be very easy to verify since nearly all pro match results are online. Furthermore,to surivive in mma as a tkd stylist,you need to be training like a kickboxer ,wrestler and grappler and have to abandon almost everything in tkd except the kicking.I did it myself after 15 yrs with the ITF. I have respect fot tkd as a self improvement tool especially for kids but it was never effective,even less so with the sine wave emphasis.Its obvious gen choi just added it to look different to karate after he introduced tkd to north korea in the early 80s,it had no application .What is absolutely crazy is that senior masters and grandmasters including your own gm rhee could neither perform or teach it to gen chois satisfaction,I was at seminars up to 2000 where he would constantly criticise seniors for doing it incorrectly when it had been in the system over 15 yrs already.

[@scarred10]

@@DonatoNardizzi yes,ive seen his fights,great man for his age but he used no tkd apart from the kicks and certainly no sine wave. If an 8th degree cannot use it,its safe to say its unuseable.

[@bryanking1428]

Anthony Pettis, Anderson Silva, Yair Rodriguez, Rose Namajunas, Valentina Shavchenko, Benson Henderson, Edson Barboza, Bas Rutten and many others have a background and usually a black belt in Taekwondo. Famously Conor McGregor started out in Taekwondo too. The issue is that MMA requires cross training to fill in gaps... Particularly in jiu-jitsu and wrestling. Along with training and strategizing for low kicks, which changes the whole game... You have to change from a more side facing stance to a more square stance to guard against these other aspects. Taekwondo has its own massive competition circuit, that is very rewarding and our own community and many do not require or feel they need to go into MMA. Many also compete in WAKO kickboxing if they desire even more competition and a large amount of titles in WAKO have gone to these taekwondo fighters through the years. In the context of patterns, I always thought the sine wave resulted in a very beautiful looking pattern, allows the body to relax before exploding into the movement. Go and search for "Chung do Kwan" and look how sloppy things can look without sinewave. The simple fact is that sinewave and attention to the details of movement and exact technique result in beautiful body control and aesthetic expression of the art.

[@rxj0765]

This guy really swears by this sine wave bullshit..i wonder if he's ever used it in a real fight?

[@DonatoNardizzi]

I don't think you quite understand what sine wave is. As I explained in my video, sine wave exists in natural, flowing and efficient movement. It also stabilises your body to deliver more power. Even boxers use it. They call it "sitting down on your punch".

[@scarred10]

@@DonatoNardizzi its anything but natural and boxers drop weight, they do not go down,up and down again.