Aikido

Officially Aikido (合気道)

Modern Japanese martial art founded by Morihei Ueshiba (~1920s-30s) focused on defensive redirection of attackers' energy through joint locks, throws, and pins — 'the art of peace' with no competition in most styles.

📐tatami (mat) floor⏱~90 min🌤indoor

Photo · Wikipedia

What is Aikido?

Aikido (合気道 — 'way of harmony with spirit/energy') is a modern Japanese martial art founded by Morihei Ueshiba (1883-1969), known as 'O-Sensei' (great teacher). Derived from Daitō-ryū Aiki-jūjutsu + Shinto philosophy. Core philosophy: defensive martial art focused on redirecting + neutralizing attacker's energy without seriously injuring them — 'the art of peace.' Uses joint locks, throws, pins, and blending movements (irimi/entering, tenkan/turning). Practitioners (aikidoka) wear traditional keikogi + hakama (worn from higher ranks). Practiced in dojos globally; most styles reject competition (unlike judo or karate). Notable styles: Aikikai (mainstream, largest — Ueshiba's founding lineage), Yoshinkan (harder, more military-style), Iwama-ryū (weapons emphasis), Ki Society, Shodokan (Tomiki, competitive with rules). Weapons practice includes bokken (wooden sword), jo (wooden staff), tanto (wooden knife). No belt colors typically — white belt then black belt (dan grades). Popular among older adults, professionals, and those seeking peaceful martial art. Steven Seagal + others brought aikido to Western cinema. 1.5-2 million practitioners globally.

Quick facts

How it works

Objective

Neutralize attacker safely without harming them; blend with + redirect their energy.

Match structure

Traditionally NO competition — most styles practice partner drills (kata) + free practice (jiyu-waza). Shodokan/Tomiki style has competitions (embu — kata; tanto randori — knife match).

Rules

Basic rules

No competition (most styles)
Aikikai + most styles avoid competitive matches; practice is cooperative kata.
Attacker + defender roles
Uke (attacker) commits to attack; nage (defender) neutralizes with technique. Roles alternate.
Break-falls required
All aikidoka learn ukemi (safe falling) to prevent injury from throws.
Bow (rei) on/off mat
Bow to kamiza (front wall), then to partner before + after practice.
Weapons complement empty-hand
Bokken (sword) + jo (staff) practice deepens body mechanics understanding.
Grading via demonstration
Rank tests: perform prescribed techniques + kata for panel of higher-ranked teachers.
Shodokan/Tomiki has rules-based competition
Tanto randori: attacker with rubber knife scores by touching torso; defender scores with pin/throw.

Advanced rules

Irimi (entering) + tenkan (turning)
Two foundational movements: enter directly toward attacker vs turn to blend + redirect.
Common techniques
Ikkyo (first control), nikkyo (wrist control), sankyo (rotating wrist), yonkyo (nerve press), kotegaeshi (wrist reversal), iriminage (entering throw), shihonage (4-direction throw).
Randori (free practice)
Defender faces 2-5 attackers simultaneously; continuous flow of techniques.
Kata forms
Prescribed technique sequences performed for grading + demonstration.
Dan grades (10 dan traditional)
1-10 dan; 10th dan honorary. Most active practitioners: 3-6 dan. Formal certificates from IAF.
Shodokan rules (competitive)
Points for pin (5), throw (3), immobilization; attacker with knife scores 1 pt per touch to torso.
Weapons kata (aiki-jo, aiki-ken)
Solo + partner forms with wooden staff + sword; teach body mechanics + timing.
O-Sensei's legacy
Morihei Ueshiba established Iwama school (weapons emphasis) + Tokyo Hombu (main HQ).

Scoring

Traditional aikido has NO competition. Shodokan/Tomiki style: points for pins, throws, immobilizations; attacker scores by touching torso with rubber knife.

Action	Points
Traditional practice	No scoring — cooperative kata
Shodokan pin	5
Shodokan throw	3
Shodokan immobilization	2
Attacker touches torso with tanto	1

Win condition · Traditional: no winners. Shodokan: highest points at time expiration wins.

Playing area

Called

tatami (mat) floor

Dimensions

Traditional dojo tatami-covered floor; no fixed size (varies by dojo).

Padded tatami mats absorb throws + breakfalls; kamiza (shrine wall) at front; bow toward it entering/leaving.

Equipment

Keikogi (uniform)
White cotton uniform (top + trousers); similar to judo/karate gi.
Hakama
Wide-legged black or dark blue pleated trousers; worn from 1st dan (or earlier in some styles).
Bokken (wooden sword)
Wooden practice sword for weapons work + Kata.
Jo (wooden staff)
~128cm wooden staff for jo practice.
Tanto (wooden knife)
Wooden knife for knife defense practice.
Obi (belt)
White belt to black belt; no colored ranks in traditional aikido.

Officiating

Sensei conducts classes; grading tests judged by 3-5 senior dan holders. Shodokan tournaments have referees.

Sensei (teacher)
Grading panel (dan test)
Referees (Shodokan only)

Strategies

Blend with attack
Don't resist force with force — move with attack + redirect at 90° or 180°.
Take center
Enter attacker's centerline; unbalance them by controlling their center.
Move first (sen)
Advanced aikido: move before attack fully commits; disrupt attacker's intention.
Continuous flow
Techniques should flow — never dead-stop; if one fails, transition immediately to next.
Breathe with technique
Ki extension + kokyu (breath power) — techniques feel effortless when combined with breath.
Weapons inform empty-hand
Bokken + jo practice reveals same principles in bigger scale — study both.

Terminology

Aikido: 'Way of harmony with spirit/energy' — the martial art.
Aikidoka: Aikido practitioner.
O-Sensei: 'Great teacher' — honorific for Morihei Ueshiba, founder.
Uke: Attacker in partner practice.
Nage / Tori: Defender in partner practice.
Ukemi: Safe breakfall technique.
Irimi: Entering movement — step into/toward attack.
Tenkan: Turning movement — pivot to blend + redirect.
Ikkyo, Nikkyo, Sankyo, Yonkyo: First-fourth control techniques (foundational joint locks).
Kotegaeshi: Wrist-reversal throw.
Iriminage: 'Entering throw' — clothesline-style throw.
Shihonage: 'Four-direction throw' — versatile throwing technique.
Kata: Prescribed technique sequence for practice/grading.
Randori: Free practice — defender faces multiple attackers.
Hombu Dojo: Main aikido HQ in Tokyo.
Doshu: 'Master of the way' — grandmaster/leader of Aikikai lineage.
Hakama: Wide-legged pleated trousers worn from higher rank.
Ki: Spirit/energy — central concept in aikido philosophy.
Kokyu: Breath power — natural body power via breathing coordination.

Major competitions

IAF World Aikido Congress
quadrennial · worldwide (demonstrations, not competition) · since 1976
All Japan Aikido Demonstration
annual · Japan · since 1960
Shodokan World Championships
quadrennial · worldwide (Shodokan style only) · since 1989

Where it is played

Governing bodies

International Aikido Federation (IAF)
Founded 1976 · Tokyo, Japan
Official site ↗
Aikikai Foundation
Founded 1940 · Tokyo (Hombu Dojo)
United States Aikido Federation
Founded 1968 · USA

Famous names & records

Famous athletes

Morihei Ueshiba (O-Sensei, 1883-1969) — Founder of aikido; considered greatest martial artist of 20th century
Kisshomaru Ueshiba (1921-1999) — Morihei's son; 2nd Doshu (grandmaster); brought aikido internationally
Moriteru Ueshiba (b. 1951) — Current 3rd Doshu; grandson of O-Sensei
Koichi Tohei (1920-2011) — Chief instructor at Hombu; developed Ki Society style
Kenji Tomiki (1900-1979) — Founded Shodokan competitive aikido style
Gozo Shioda (1915-1994) — Founded Yoshinkan aikido (harder military-style)
Steven Seagal (USA, b. 1952) — 7th dan; opened aikido dojo in Osaka; brought aikido to Hollywood

Records

Founder
Morihei Ueshiba (O-Sensei) — 1920s-30s; martial arts legend (1969)
Oldest active aikidoka
Various senior teachers — 80s-90s continuing to teach (2024)
Global spread
IAF national federations — 80+ countries by 2020 (2020)
Highest rank ever awarded
10th dan (O-Sensei posthumous, others) — Extremely rare; ceremonial (2024)

Learn this sport

beginner

1
Find dojo
IAF-affiliated dojos in most cities globally; Aikikai style most common.
2
Learn ukemi first
Weeks of safe falling practice before serious throwing techniques.
3
Basic techniques (kihon-waza)
Ikkyo through yonkyo (first four controls) foundational; practice 100s of times.

intermediate

1
Attend seminars
Weekend intensives with visiting senior teachers; expand technique repertoire.
2
Begin weapons practice
Bokken + jo classes typically added at 3rd kyu or higher.
3
Reach shodan (1st dan)
Typically 3-5 years of consistent training; grading test with prescribed techniques.

advanced

1
Higher dan grades
Progress through 2nd-6th dan over 10-25 years; sensei responsibility increases.
2
Instructor training
Certified to teach at 3rd dan+ in most styles.
3
Visit Japan (Hombu Dojo)
Traditional pilgrimage — training at Tokyo main dojo + Iwama countryside.

Frequently asked

What is aikido?+

Aikido ('way of harmony with spirit/energy') is a modern Japanese martial art founded by Morihei Ueshiba (1883-1969, known as 'O-Sensei'). Core philosophy: defensive martial art that redirects + neutralizes attacker's energy without seriously injuring them. Uses joint locks, throws, pins, and blending movements. Called 'the art of peace' — most styles reject competition. Emphasizes spiritual + philosophical development alongside physical technique.

Is aikido effective for self-defense?+

Debated — traditional aikido excels against committed attacks (grabs, punches, knife thrusts) but has been criticized for lack of pressure-testing (no competition in most styles). Effective aikido requires 5+ years of serious training. Some styles (Yoshinkan) emphasize practical self-defense + are used by Japanese police. Modern hybrid systems combine aikido with judo/BJJ for MMA-adjacent practicality. For pure self-defense, arts with live sparring (BJJ, boxing, muay Thai) develop skill faster.

Why no competition in aikido?+

O-Sensei believed competition undermined aikido's philosophy — you can't 'defeat' anyone if you're truly blending with them; opponent = teacher. Most styles (Aikikai, Yoshinkan, Iwama) practice only cooperative kata (partner drills). Exception: Shodokan (Tomiki-ryū) has competitive tournaments with tanto (knife) work + point system. Modern debate: some argue competition improves aikido; traditionalists say it corrupts the art.

Who is Steven Seagal?+

American actor + 7th-dan aikido practitioner. Born 1952. Studied aikido in Japan from 1975; opened first dojo in Osaka run by non-Japanese (1980). Starred in action films (Above the Law, Under Siege, Hard to Kill — 1980s-90s) that popularized aikido in Western consciousness. His 'hard' aikido style + confrontational persona controversial in traditional aikido community. Continues to teach + hold seminars.

How long to reach black belt?+

Aikido has traditional kyu grades (10-6 white belt, 5-1 brown belt in some styles — most just use white) then 1-10 dan (black belt). Typical timeline: 3-5 years to shodan (1st dan). Slower than karate or taekwondo. Progression is deliberate — aikido techniques require deep body mechanics + years of ukemi practice. 3rd-4th dan (10-15 years) is considered competent teacher level; masters continue evolving indefinitely.

What weapons are used in aikido?+

Three main wooden practice weapons: 1) Bokken — wooden sword (~100 cm), practices sword-based cutting movements. 2) Jo — wooden staff (~128 cm), practices thrusts, strikes, blocks. 3) Tanto — wooden knife, practices knife defense + attacks. Weapons practice is not for real combat but to teach body mechanics + timing at greater scale. Iwama-ryū style (founded by Morihiro Saito) heavily emphasizes weapons alongside empty-hand.

Sources & provenance

Wikipedia — Aikido— Wikipedia
International Aikido Federation— IAF

Last verified 2026-08-24.community