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CTI Model Concept Newsletter - December 2020

22nd L.H.P. Team Champs

Our annual CTI Hanmadang - the Lee H. Park Team Championships has been moved to January 23rd!

There will be team competitions in poomse, one-step sparring, target kicking and much more!

Sign up today by clicking here.

Ask your instructor for more information.

NEW Black Belts!

Congratulations to our newest CTI Black Belts:

5th dan - Andrew J. McDaniel

3rd dan - Caleb Feagans

2nd dan - Evelyn LaMorgese, Cody Jacobson and Deb Denny

1st dan - Lars den Hartog

CTI Masters Seminar

We raised over $3,000 in November at our CTI Masters Seminar for Grandmaster Mike Morton from Cape Girardeau!  The seminars were on sparring and were a great time!

Thanks to everyone who took part!

CTI Upcoming Events

Saturday Upper Belt Training - January 9

CTI Promotion Tests - January 16

22nd Lee H. Park Team Championships - January 23

Our CTI Motto

discuit qui ducit

Who learns leads

Marley Griffin Artwork

Try a Class!

Any family members can try free classes at any CTI Campus location during the month of January!

Just make arrangements with your campus instructor and get ready to have the best time of your life while getting into shape and learning self-defense!

Sweatpants, a loose t-shirt and you're in!  See you in class!

Chamber Hand, by Brandon Brech, junior green belt

One reason we should have a chamber hand is so that we can attack the attacker behind you.  Another reason we should have a chamber hand is so we can be ready for another punch.  Also it helps you because it shows you are ready to pull out another punch.  Also Kihap loud when you punch so that scares them off easily.  Another detail is that you have it back in Poomse and in walking drills and self defense. 

From a Black Belt Paper - Part I


            The first of the basics techniques we practice is the front punch. This punch is one the simpler movements and can also be and unstoppable technique when used in sparring. As this is the case many studies have been performed measuring athlete’s ability to punch with respect to the power and force of the punches.

            One study was conducted to see if the dominant hand proves to be faster or produce more power in the technique. The study used Taekwondo black belts and measured the speed of the punches of both the right- and left-hand front punches. The study shows that there is no significant difference between favorite and non-favorite hands when it comes to punch speed. The conclusion drawn from the data means that the years of equal practice eventually equals out and both sides become almost equal (Wasik, Kinematic).

            Another study done to measure the power and force of the front punch proves what we have been taught in Taekwondo. The power of the front punch comes from the speed of the punch, but the force applied on the target or the opponent greatly increases when it is focused in a smaller area. The study shows reducing surface area of the attacking tool increases the pressure applied to the target (Wasik, Chosen).This shows that punching with the first two knuckles is indeed an important part of the punch.

            The same study also measured the time to initiate and complete a front punch in sparring stances. It compared that to the time it takes a person to respond to an attack. The time used in the study to respond to an attach was 0.18s. The data from the table shows that both side kick and the front punch can produce great speed in a small timeframe.

The data shows that the front punch from a sparring stance would be able to land before a person could respond and block. That implies that the front punch would be unstoppable if you don’t keep the distance from your opponent to increase the time you have to respond to the punch.

            Another study measured the velocity of the front punch from sparring and front stances as shown in the figure below. This study found a correlation between the speed of the punch and the speed and use of the chamber hand. When the chamber hand was used and pulled back with great speed, the front punch also achieved higher speed. The reverse motion of the chamber hand increases the velocity achieved during the front punch. The data shows that the practice of basics improves this phenomenon. The difference is more pronounced with more practiced punchers (Wasik, Movement).

The study on the power of the front punch also measured the optimal distance for the target or opponent to achieve maximum power.  For the front punch, maximum velocity is achieved at 86% arm length (Wasik, Chosen). Similar to the side kick, the power drops of from an average of 420N at 87% arm’s length to 192N at 5% off measurement.

The study on the front punch compared a front punch in sparring stance to a front punch from a front stance with the power of the hip’s rotation and solid stance.  The measurement can be seen in the figure below.

The front punch from the low stance created much more power (W─ůsik, Influence).The reverse velocity is the hand pulling back during the body twist. The move back give the hand more distance to move to achieve a higher speed at the cost of taking longer to complete the move. This finding was confirmed with another study that showed the role of hip movement is needed for increases in power of the techniques (Savoie).

- Mark Scott, 3rd dan

Colorado Taekwondo Institute

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