Monday, 20 January 2020


Training here today in central Oita City, January 20th, 2020.
Well into my 40s now I stopped training hardcore when I turned 30. This was to take care of my body so I could keep going and keep improving my skill. Just before I turned 31, I started this blogsite.  I'm not claiming to be old at all, but looking after the body is essential, and makes it possible to be even better (at karate) as one ages. Nevertheless, I still engage in days of hardcore training. And, today, was one such day. 


Today’s Kihon training comprised of a number of fundamental techniques; namely, tsukiwaza (thrusts) and  ukewaza (reception techniques). Focus was on delivery from zenkutsu dachi and kokutsu dachi as IKS (International Karate Shotokan) ‘syllabus style’ Ido Kihon.

This included: (1) Oizuki; (2) Gyakuzuki; (3) Maetezuki; (4) Nukite; (5) Jodanageuke; (6) Chudansotouke; and (7) Chudanshutouke. Standard renzokuwaza were also worked on including Sanbonzuki, the aforementioned closed fist ukewaza followed by gyakuzuki, and shutouke kara nukite. Special attention was paid to transfer of weight by using the stances optimally and timing of koshi no kaiten in relation to technical delivery. Nothing flash but, of course, utterly imperative stuff. I didn't do so many reps but enough to get things right and break a good sweat.

While there was no kiba dachi work in the Kihon, much time today was spent practicing 鉄騎三段 (Tekki Sandan). This was followed by 明鏡二段 (Meikyo Nidan) and 雷光 (Raiko). My aim in today's training was to push myself to my physical limits as opposed to 'technicality'. In this way, 'technique must survive exhaustion'. While I do not make others do this when I teach, unless requested by individuals, there is a maxim here in Japanese Shotokan circles. It goes something like this in English... "The karate you do when physically broken from exhaustion is your real karate". Needless to say, this is not for everyone, and not something I believe that anyone should be pressured to do. In seminars, I never have this approach as I believe it is dangerous and unprofessional.


All of the Kumite practice today was dedicated to Kihon Ippon Kumite. It was comparatively easygoing after the 'crazy intense' kata training. Attacks included (a) migi jodan oizuki; (b) hidari jodan oi zuki; (c) migi chudan oizuki; (d) hidari chudan oi zuki; (e) migi chudan maegeri; (f) hidari chudan maegeri;  (g) migi chudan yokokekomi; and (h) hidari chudan yokokekomi. Defense and counterattack — free choice. The aim in attack was no telegraphing whatsoever and, in defense/counterattack, selecting the simple and effective counter—perfect maai—without hesitation (that is, immediately with no position change).

To conclude today’s session, I went through some basic plyometric exercises and my typical cardio, impact and strength/power training. Also a special challenge that I'm doing at the moment.

To summarize, today was really-really hard work. Like I said in the opening, not every day is like this! And if it was, I would gain a serious injury. Tomorrow will balance out this with a light training, brief 5km run to loosen up; but still, the strength work will be included.

My advice to everyone... LISTEN TO YOUR BODY!!! Please take care and use karate to increase your health, not decrease it. Only you can do that by doing things at YOUR OWN PACE.

Key words: OWN PACE!

 Osu, André
© André Bertel. Oita City, Japan (2020).

Saturday, 11 January 2020

陰陽 (Inyo)

陰陽 (Inyo) is a relational concept that developed Taoism in China around 4th—3rd  Centuries BC. To be concise for this short article, “…Inyo is that everything is governed by duality: two opposing yet relative principles/forces”—yes, Yin and Yang. 
 I am not touching on this topic to go down the track of Eastern religions nor philosophies but, instead want to completely focus on this concept for improved technical efficacy.

To maximize impact power the two most important powers are: (1) to optimally use one’s mass; and (2) to move as fast as possible.

Let’s me talk about this in regards to Inyo…

POWER/FORCE: Let’s use OI-ZUKI (JUN-ZUKI) and MAE-GERI KEAGE as examples… The sasae-ashi (support leg) in these waza use a heavy, strong and muscular/forced action—drive; whereas, the striking limb is relaxed. Accordingly, the support leg (in both oizuki and maegeri) aggressively propel the hips forward from the drive of the legs. Furthermore, the relaxation of the attacking limbs, as stated before, are relaxed; thereby, allowing the muscles to work harmoniously with the respective movements. Let me expand on this very basic point.

SOFTNESS/RELAXATION: Again, in the most simple terms… When the muscles are relaxed the extension of the arms are naturally driven by the triceps and likewise, this naturally results in biceps being relaxed. This optimizes speed as there is no ‘self-resistance’. When one consciously tenses, both biceps and triceps tense; thus, dramatically reducing technical velocity . A good memoir is this: “double the speed, quadruple the power” (Asai Tetsuhiko Sensei).
Mae geri is of course the same… As you extend the leg you want the hamstrings to be completely relaxed and just allow the quads to do their work (and vice-versa in the chambering and hiki-ashi aspects of the kick).

Returning to the POWER/FORCE points made above, it reminds me of Tanaka Masahiko Sensei. He recommended to me, “Don’t kick through the target, drive your hips through the target”. This statement really elucidates Asai Sensei's focus on joint action as opposed to muscle action. If we focus on the bones and joints, the muscles work optimally via natural action. What's more, without muscular tension the mind is also more free and receptive to stimuli, but I suppose that is worthy of another article.
Tanaka Sensei's kick was always devastating. A true Master.

Needless to say, 陰陽 (Inyo) is technically imperative in Budo Karate.

© André Bertel. Oita City, Japan (2020).

Monday, 6 January 2020


Based on numerous emails recieved I thought that today I'd post about the International Karate Shotokan (IKS) 'RENSHUSEI PROGRAM', which I conduct here in Oita City, Japan.


The training is not aimed to exhaust participants, as this would hinder the main point: LEARNING and SKILL/TECHNICAL DEVELOPMENT. The objective of the training is budo/bujutsu karate education, which will not only raise the skill of the karateka immediately, but in the long term. Furthermore, to transmit this knowledge to other regions of Japan and, indeed, around the world. 

However, it is not physically easy either... The Renshusei program is specialized for each individual BASED ON THEIR PERSONAL GOALS (and directed by their physical condition and skill level). 
Go through the gate...
For the above mentioned reasons, attending training as a Renshusei is now extremely popular; however, there is a bigger reason....RESULTS!

No one comes as a Renshusei here and leaves with minimal improvements. They greatly improve and these improvements snowball after they return home.


In all cases, to ensure a place as a Renshusei, it is highly recommended to book at least three months in advance. 


Lastly, as we cannot sponsor visa's for foreign nationals - this is the responsibility of all visitors to Japan.


To begin the new decade, as of January 1st, 2020, IKS Renshusei Diplomas can be accessed on the completion of training.

To apply to be a Renshusei you can email here: 

Osu, André

© André Bertel. Oita City, Japan (2020).

Sunday, 5 January 2020

The Renshusei Experience

For those wishing to further their skills and understanding of Shotokan karate as traditional budo/bujutsu, the IKS (International Karate Shotokan) Renshusei Program here in Oita is literally second to none in Japan.

All trainees leave with heightened technical skills and understanding of true karate. This is why the course is so popular and people always keep coming back. The course is individualized for each trainees technical level, fitness, injuries/health, and each persons training objectives.

Below is a brief video of Renshusei training. Greetings from Oita City, Kyushu, Japan.
Osu, André

© André Bertel. Oita City, Japan (2020).

Thursday, 2 January 2020

RENSHUSEI REPORT: Simone Collado (5th Dan)

Report from December 2019 Renshusei, Simone Collado (5th Dan), from Pretoria, South Africa.

© André Bertel. Oita City, Japan (2020).

Wednesday, 1 January 2020

IKS now has a homepage

INTERNATIONAL KARATE SHOTOKAN now has a homepage. Of course, this is just the beginning

Greetings and Happy New Year from Oita City, Japan.

© André Bertel. Oita City, Japan (2020).

Tuesday, 31 December 2019


I have uploaded a slow performance of 掌手 (Shoute) kata. This is the version taught by my late teacher, Asai Tetsuhiko Sensei.

Tomorrow 国際空手道松濤館 (IKS - INTERNATIONAL KARATE SHOTOKAN) will release a website. It will be under construction for some time yet, but there!

Lastly, I'd like to wish everyone a very happy new year and new decade.



© André Bertel. Oita City, Japan (2019).

Sunday, 29 December 2019

Wednesday, 25 December 2019

Trainee from Pretoria, South Africa: Simone Roig Collado (PART 1)

Simone Roig Collado (5th Dan) from Pretoria, South Africa, just completed 10 days here in Oita City as a Renshusei at my dojo.

During her time here I saw her greatly increase her skills via studious training and increased self-awareness skills: both are at the core of the IKS 国際空手道松濤館  (International Karate Shotokan) Renshusei Program. The essence of this is to gain measurable results which are tangible. In sum, the training here is all about getting real results—immediate and long term improvements, as opposed to stylistic differentiations—which are largely irrelevant in the greater budo/bujutsu context.

This is why I don’t correct differences, I only correct biomechanical errors and advise about superior application methodologies.

While I'll not go into the specific training that Simone received, as a Renshusei (as always, that is for her and whom she wishes to share it with), I will say that a lot was covered in depth. Amongst the lesson contents included 鶴翼 (Kakuyoku), 青柳 (Seiryu), 明鏡二段  (Meikyo Nidan) and most notably, 掌手 (Shoute).

Throughout the time 'trainee specific' 基本 (Kihon/fundamentals) were covered such as improvements/advancements of koshi no kaiten, tai no shinshuku, teashi onaji, shime, and so forth. Needless to say, everything was related directly to effective application in 組手  (Kumite/unarmed self-defense).

Taken as a whole, Simone did extremely well and, as previously stated, really improved each day. I’d like to once again congratulate her. Added to this, she became the first non-Japanese Renshusei to train at the new Oita-Prefecture Showa Denko Budojo.

Outside of the dojo it was great to spend lovely times with Simone, her husband Carlos, and their little daughter Natalia. We wish you all the very best for the final week of 2019 and, indeed, in the New Year.

 André Bertel

© André Bertel. Oita City, Japan (2019).

Tuesday, 10 December 2019


In a mere few weeks we will be entering into a new year and, also, a new decade! While theres still another 21 days of training left to do, Im beginning to do my annual wind-down training, by going through the new 国際空手道松濤館 (IKS: International Karatedo Shotokan) grading syllabus—基本 (Kihon), (Kata) and 組手 (Kumite).

Working through the updated syllabus, just a few days ago, I made a trip to train at Futagoji, which is another famous temple here in Oita Prefecture.

Located deep in the Kunisaki Peninsula, Futagoji was founded over 1,300 years ago. While, indeed, this iconic temple is in Oita, it still took me a few hours (from my home in central Oita City) to get there. As a result, it’s been over 12 years since I last visited and practiced Karate there.

Ever since I first came here to Japan in 1993, I’ve enjoyed training at shrines and temples. I’m not a Buddhist, nor follower of Shinto; however, the architectural beauty and immersion in nature, make them ideal for highly concentrated and intense karate practice. Here in Oita, such traditional places are so vast and, unlike more populated regions of Japan, it is possible to visit them without disturbance.

Lastly, I would like to say that announcements will be made soon:

(1) Regarding dojo and group affiliations to Japan with IKS.

(2) The new examination syllabus.

Osu and greetings from chilly Oita City, Japan. - André

© André Bertel. Oita City, Japan (2019).