Sine Wave

**Soju_King** · Posted On: 9/12/2009 10:20pm

i was wondering, what are the peeps views on Sine wave? BS? i think its BS and some sort of psuedo fancy scientific name for hip snapping/ rhythym in the form.

im looking for more insights from other people though

**Dustin P** · Posted On: 9/12/2009 10:22pm

All's I know is that Sine waves are math functions.

***DerAuslander*** · Posted On: 9/12/2009 10:25pm

Absolute bullshit.

**Matt Stone** · Posted On: 9/13/2009 1:52am

I remember back in the 80s and 90s never, ever hearing of a "sine wave" in TKD. My wife, her two brothers, and most of their friends were all TKD students, and it was never brought up.

Years later I hear about this "sine wave" thing, see it demonstrated, and couldn't help but think "wow, they've learned that gravity can help their strikes, how nice."

***DerAuslander*** · Posted On: 9/13/2009 8:06am

Yet they completely **** up the concept by bouncing up and down.

**Matt Stone** · Posted On: 9/13/2009 9:18am

Originally Posted by DerAuslander108

Yet they completely **** up the concept by bouncing up and down.

I remember when I first started training, our school went to a lot of open, point-sparring tournaments. We'd specifically train in our classes to "time" the bouncy-bouncy in order to catch the cat we were fighting against when he was in the air. Made for entertaining sparring matches (and a lot of faux-fouls when a guy was hit with a light contact technique he simply couldn't resist, making said technique look pretty comic-book-awesome) to say the least.

I also liked how the TKD guys thought that, since the back and spine were off-limits target areas, it was a good idea to walk backward toward their opponent, depriving them of points. That led to more than one excessive contact judgement on the part of the non-TKD opponent... Some folks just didn't cotton to that kind of sportsmanship/gamesmanship.

**Captain Spaulding** · Posted On: 9/13/2009 3:01pm

Without Sine wave, there would be just one less thing for people to argue about on youtube.

To me, it's a good example of how too much theory, when divorced from practicality, can be used to convince martial arts students to learn and practice movements that are ridiculous.

**MaverickZ** · Posted On: 9/13/2009 7:04pm

People who don't understand mathematical, physical, or other scientific ideas should not be teaching or explaining their martial arts using said ideas. That is what happened in this case. The results are not atypical.

**MaverickZ** · Posted On: 9/13/2009 7:07pm

Originally Posted by Captain Spaulding

Without Sine wave, there would be just one less thing for people to argue about on youtube.

To me, it's a good example of how too much theory, when divorced from practicality, can be used to convince martial arts students to learn and practice movements that are ridiculous.

I think it has less to do with the principles themselves being divorced of practicality and more to do with the people who created this application of principles not understanding the principles in question.

People have written entire degree theses on the mechanics and kinematics of just walking. It's incredibly presumptuous and arrogant for those ITF-TKD people who created the "sine wave" stuff to believe they can explain something as complex physically as punching in something as simple as "Gravity goes down, the sine wave goes down, so the sine wave will make you punch more better!" What do they have against the cosine wave by the way? It's probably closer to what they are trying to explain anyway.