Shizuo Imaizumi’s Ki Aikido Course!

“Welcome to the world of Ki Aikido in the tradition of Koichi Tohei, 10th dan”

Modern aikido was born in Japan in the years following World War II. At the forefront of the dissemination of Morihei Ueshiba’s martial art were the founder’s son, Kisshomaru, and the gifted Koichi Tohei. Tohei, in particular, was a leading light and gathered around him many of the young talents of the Aikikai Hombu Dojo in Tokyo. Among them was Shizuo Imaizumi, one of Tohei Sensei’s closest students and a member of his inner circle.

Morihei Ueshiba O-Sensei throws Shizuo Imaizumi at Aikikai Hombu Dojo c. 1965

Morihei Ueshiba O-Sensei throws Shizuo
Imaizumi at Aikikai Hombu Dojo c. 1965

Imaizumi Sensei was in the right place at the right time to witness first hand some of the most important events of early aikido history. He was a student at Waseda University at the time of Kenji Tomiki’s introduction of competitive aikido, which caused a great deal of controversy and led to Tomiki’s estrangement from Hombu Dojo.

Imaizumi Sensei was a participant in Tohei Sensei’s ascent to becoming chief instructor of the Aikikai and one of his staunchest supporters.

When the Founder O-Sensei became ill, Imaizumi Sensei was one of Morihei’s caregivers and among the select few to participate in the round-the-clock watch over his dying days.

With the founding of Tohei’s Shinshin Toitsu Aikido, Imaizumi Sensei was sent to New York City in 1975 to develop and oversee aikido dojos on the east coast who had joined Tohei Sensei’s Ki no Kenkyukai organization. He became chief instructor of the Ki Society in the United States in 1980, a position he held for three years.

In 1987, after a long association with Koichi Tohei, Imaizumi Sensei temporarily retired from aikido and returned to Japan. After nearly a year away, Imaizumi Sensei returned to New York City in 1988 from where he assumed responsibility for a group of aikido dojos that had become independent of Tohei’s Ki Society organization. The new umbrella association was called the Shin-Budo Kai and Imaizumi Sensei became its chief instructor. From that time forward, he has continued his teaching activities and research into Ki Aikido and its underlying principles.

Koichi Tohei Sensei with Shizuo Imaizumi

Koichi Tohei Sensei with Shizuo Imaizumi

When Koichi Tohei resigned from the Aikikai in 1974 — one of the most traumatic events of the young’s arts history — Imaizumi Sensei remained loyal and was one of the few with whom Tohei Sensei confided.

Koichi Tohei Sensei demonstrating Ki Aikido with Shizuo Imaizumi as uke c. 1974

Koichi Tohei Sensei demonstrating Ki Aikido with Shizuo Imaizumi as uke c. 1974

After two years in the making, we are delighted to release Shizuo Imaizumi Sensei’s Ki Aikido course produced in collaboration with Aikido Journal. This content-rich course consisting of 47 modules will introduce you to the world of Ki Aikido taught in the tradition of Koichi Tohei, 10th dan.

For those desiring to learn Ki Aikido from one of the art’s top experts, Shizuo Imaizumi’s Ki Aikido Course will provide instruction in the entire basic curriculum. Few have mastered this subject matter to the degree Imaizumi Sensei has as one of Tohei Sensei’s original students. He will explain the Ki principles forming the basis of Tohei Sensei’s aikido. Imaizumi Sensei will also demonstrate the entire set of the genial Ki No Taiso exercises that were once practiced at the Aikikai and which few remember today. To top off this important course material, Aikido Journal Editor Stanley Pranin conducts a lengthy video interview of Imaizumi Sensei containing first-hand witness testimony on several pivotal historical events in the early days of the art.







Many practitioners today are only vaguely conscious of the masters responsible for building the infrastructure of modern aikido. Koichi Tohei — aikido’s first 10th dan — was such a figure and left an incredible body of knowledge and techniques that shaped the growth of today’s art. Tohei Sensei passed in 2011. Among Tohei Sensei’s original students carrying forward his legacy, Shizuo Imaizumi Sensei stands among a select group of teachers qualified to teach and explain the origin and evolution of Ki Aikido to our modern generation. This is your opportunity to get the very best study aid available to gain real skills in this system and deepen your grasp of the art. Welcome to the world of Ki Aikido!


What’s Inside the Shizuo Imaizumi Ki Aikido Course…

● 47 hi-res video modules
● Option to view content online or download to your device
● Unlimited access to course content
● Principles of Ki explained and demonstrated
● Ki No Taiso explained and demonstrated
● Basic techniques of Ki Aikido developed by Koichi Tohei, 10th dan
● In-depth interview with Shizuo Imaizumi by Stanley Pranin
● Learn backstories to some of the most important events of aikido history

Click to Order Shizuo Imaizumi’s Ki Aikido Course with 47 Video Modules!


  1. Imaizumi sensei’s teaching of tenshi nage reminds me so much of Maruyama sensei’s teaching of the same technique. Of course, this should come as no surprise since both of them are students of Tohei sensei. Wonderful teachers they all are!

  2. Pietro Ignacio says:

    Hello Sensei,
    Is this offering available in DVD format? Or is it only being offered online or through device download?
    Thank you so much for your singularly monumental work of curating the accurate and honest history of aikido!
    More power to you!
    Pietro Ignacio

    • This course is only being offered in online/downloadable format. The DVD format is rapidly disappearing in our market. Thank you.

  3. Adon Tubiera says:

    Are the courses meant for advanced levels or beginners??

  4. Jorge Sanchez says:

    I am interested in purchasing the online course taught by Shizuo Imaizumi. How would I go about purchasing the 47 modules?

  5. Cual es el costo, me pueden dar información al respecto, gracias

  6. A smiling sensei for me is the best sensei…

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