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Ki Aikido Boulder Martial Arts Classes for Children & Adults
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If you are looking for a martial art that can improve your child’s and/or your own mind-body coordination, teach you how to relate to others more peacefully, and neutralize attacks while keeping your opponent unharmed, then you will want to consider Ki Aikido.
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Our Boulder Ki Aikido martial arts classes for children & adults are profoundly practical, spiritually focused and physically powerful.
Read: The Benefits of Performing Ki Aikido
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Boulder Ki Aikido
Martial Arts Class Schedule
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TIGERS AGES 5-8 KI AIKIDO FUNDAMENTALS
Tuesdays & Wednesdays 4:00–4:55 pm | Saturdays 9:00–9:55 am
Good for kids ages 5-8, from BEGINNERS to ORANGE BELT level.
Great for beginners. Start any week of the year! ​
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TWEENS AGES 8-12 KI AIKIDO FUNDAMENTALS
Mondays & Wednesdays 5:00–5:55 pm
Tuesdays & Thursdays 4:00–4:55 pm | Saturdays 9:00–9:55 am
Good for youth ages 8-12, from BEGINNERS to ORANGE BELT with THREE BLUE stripes. Great for beginners. Start any week of the year!
‘​TWEENS AGES 9–12 KI AIKIDO INTERMEDIATE
Mondays & Wednesdays 5:00–5:55 pm
Thursdays 4:00–4:55 pm | Saturdays 10:00–10:55 am
Good for youth ages 9-12 with ORANGE BELT with THREE BLUE stripes up to BLUE BELT with THREE PURPLE STRIPES.
Not suitable for beginners.​
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TEENS KI AIKIDO ADVANCED-INTERMEDIATE
Mondays & Wednesdays 7:30–8:30 pm | Saturdays 11:00–11:55 am
Good for youth ages 13-17 ranked 3rd Kyu and up (purple belt with 5 purple stripes and higher) or by special permission from Sensei.
Not suitable for beginners. Teen Beginners see below.
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ADULT & TEENS KI AIKIDO ALL-LEVELS | AGES 13+
Mondays & Wednesdays 6:00–7:30 pm | Saturdays 10:00–10:55 am
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ADULT KI AIKIDO ALL-LEVELS LUNCH ROLL
Good for for adults & teens (ages 13 & up), from BEGINNERS to ADVANCED to practice Ki Aikido together.
Great for adult & teen beginners. Start any week of the year!
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ChIldren's Ki Aikido Martial Arts Camps
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How to Start​​
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PURCHASE a membership
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RESERVE each class by going to the Schedule link, up to 1-hr to one month in advance.
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CHECK IN at One Dojo front desk 15 minutes before class
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About Boulder Ki Aikido
In 1977, Koichi Kashiwaya Sensei established Rocky Mountain Ki Society (RMKS) in Boulder, Colorado to officially begin his dissemination of the martial art of Ki Aikido in the United States.
After twenty years of growth during the 1980's and 1990's, the Boulder and Denver dojos were consolidated and moved to a new home in Westminster, Colorado. In 1999, with the approval and support of both Russell Smith and Kashiwaya Sensei, Abel Villacorta Sensei reopened Boulder Ki Aikido.
About Shin Shin Toitsu Aikido
Aikido with Mind & Body Unified, commonly referred to as Ki-Aikido, was founded in 1971 by 10th degree black belt in Aikikai, Soshu Koichi Tohei Sensei, when he established Ki no Kenkyu Kai (formerly known as Ki Society).
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Synthesizing aspects of Buddhism, Taoism, and Confusionism, this version of Aikido was developed by Tohei Sensei from his life experience with his three main teachers: Morihei Ueshiba Sensei (O Sensei, founder of Aikido), Tempu Nakamura Sensei (founder of Shin Shin Toitsu Do, aka Japanese Yoga), and Tetsuju Ogura Sensei (Founder of the IchiKuKai).
VISIT BOULDER KI AIKIDO’S WEBSITE
CLICK THE LINKS BELOW TO READ MORE ABOUT...
Adult Ki Aikido Classes
‘Tweens & Teens Ki Aikido Classes
Children + Child-Parent Classes
About Abel Villacorta Sensei
Born in Peru, Abel Villacorta Sensei, has been teaching the mind-body coordination principles and self-defense art of Shin Shin Toitsu Aikido, since 1995.
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Villacorta Sensei currently serves as both One Dojo Director and the Head Instructor of Boulder Ki Aikido.
In the summer of 2022, he achieved the rank of Joden (high rank) in Shin Shin Toitsu Do (“Way of Unifying Mind & Body,” aka Ki Development and Japanese Yoga). This paved the way for his being awarded the rank of Godan (5th degree black belt) in Shin Shin Toitsu Aikido (“Aikido with Mind & Body Unified”) in January 2023.
He is certified as an instructor as Associate Lecturer and as Associate Examiner for the Japanese international organization, Shin Shin Toitsu Aikido Kai.

Husband, father of three, business professional in the fields of branding, marketing, design, and entrepreneur, Villacorta Sensei began his practice of Shin Shin Toitsu Aikido in the spring of 1993, under the tutelage of Russell Smith Sensei (5th dan), while attending Colorado State University in Fort Collins.
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“I first became interested in martial arts because I wanted a solid discipline to develop my character and a way to feel confident in defending myself. Due to its circular, fluid and effective techniques that harnessed the energy of my opponent, Ki Aikido quickly became a perfect fit.”
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Throughout his training, Villacorta Sensei has studied under the guidance of several high-ranking instructors across various styles of Aikido, including week-long immersive seminars and weekend workshops with Shinichi Tohei Sensei, David Shaner Sensei, Morihiro Saito Sensei, Shinichi Suzuki Sensei, Christopher Curtis Sensei, Robert Koga Sensei, Russell Jones Sensei, and Lael Keen Sensei, among others.
Villacorta Sensei has a genuine dedication for inspiring students of all ages to discover their true inner power and to live life positively. “Over time, this art has become a spiritual path for me. I remain a lifelong student of this profound art by training primarily under the guidance of Kashiwaya Sensei.”

Outdoor Boulder Summer Camps
for children ages 6-12
Enroll Your Child in Ki Aikido Now!
Mind-Body Coordination.
Resilience. Confidence. Fun!
NEW STUDENTS ONLY

24 KI AIKIDO classes + 12 bonus One Dojo classes* | 36 total classes
6:00–7:30 pm | Mon & Wed
8-Weeks | $395 | Includes Uniform​

24 KI AIKIDO classes + 12 bonus One Dojo classes* | 36 total classes
12 noon – 1:15 pm | Mon, Wed, Fri​
12-Weeks | $395 | Includes Uniform​
