Sangenkai Norway

Internal Power and Aiki training in Oslo

Sangenkai Norway is a study group in Oslo, Norway. We focus on the internal power and aiki method called Sangen, as taught by Dan Harden. The body development method and other principles taught can be used within any martial art.

Group leaders

Matei Ionescu and Kristoffer Sandven are leading the study group. Our backgrounds are from Aikido, Kenjutsu, Tae Kwon Do, Daito Ryu Aikijutsu and more.


The group is independent, but enjoy close contact with Dan Harden and several of his study groups in the Netherlands, Spain, Germany and United Kingdom.


We attend seminars abroad several times each year. Our first seminar with Dan Harden took place in Oslo in september 2015, and he came back in November 2016, April 2017, July 2017, November 2017, March 2018, November 2018, March 2019 and September 2019.

Upcoming seminars in Oslo:

Contact us for information on how to attend.

Contact information

To contact Sangenkai Norway, email: post (at)

The Sangen method

The method, as developed by Dan Harden, is built on ancient traditions from China, Japan and India. The method includes solo stationary training, slow movement drills, paired stress training, management of force under stress and, eventually, free martial movement.

Read more about the method on Dan Harden's website.