O koshi nage
0
Koshi Nage·MrMarcmaul
Voiçi donc O koshi nage , une technique de projection de hanche connue sous le nom de O goshi en Judo. N'oubliez pas que…
Koshi Nage
SubFamily腰投げ(Koshi-nage)
TraditionalTranslation: hip throw (aikido form)
Overview
Koshi Nage is the aikido hip throw — distinct from judo's koshi-waza in that the entire body, not just the hip, serves as the throwing axis. [1],[2] In aikido koshi-nage, the thrower turns deeply under the opponent's centre of gravity (a position similar to judo o-goshi or harai-goshi) but uses an arm extension and full-body rotation to project the opponent over the back, rather than relying on the hip as a discrete fulcrum. [1],[3] The result is a longer, more spiraling throw: the opponent travels over the thrower's lower back rather than being snapped over a hip-only fulcrum. [2],[4] The classic aikido entries are from katate-dori (single wrist grab) and ryote-dori (two-hand grab); the aikidoka pivots inside the line of attack, drops their centre, extends through uke's arm, and projects them across their back. [3],[4] Koshi nage is taught at intermediate-to-advanced levels in most aikido lineages because it requires confident ukemi (a long forward roll-out) and committed entry. [1],[2]
Koshi-nageJPKoshi NageJPAikido Hip Throw腰投JPAiki Hip Throw
History & Origin
Koshi nage was systematised by Morihei Ueshiba and his senior students during the 1930s-1950s. [1] The throw shares mechanical heritage with both Daito-ryu aiki-jujutsu (Ueshiba's parent art) and the koshi-waza of judo (which Ueshiba was familiar with through cross-style exposure). [1],[2] Yoshinkan (Gozo Shioda) and Iwama-ryu (Morihiro Saito) both formalised koshi-nage variants in their post-war textbooks; Aikikai includes it in standard intermediate-to-advanced syllabi. [3],[4]
Effectiveness
Koshi nage is among the more visually dramatic aikido throws — the long spiral projection is striking and effective in cooperative demonstration. [1] In competitive contexts (Tomiki / Shodokan), it appears occasionally in toshu-randori. [2] In MMA and non-cooperative grappling, the throw is rarely seen because committed forward energy from uke is required. [3] Its effectiveness in real altercations depends heavily on the opponent providing the committed energy that aikido throws need. [2],[3]
Lineage
Competition Record
Images
No images yet for this technique.
Sign in to suggest an image.
Biomechanical Mechanism
Primary Action — Pivoting deeply under the opponent's centre of gravity, using the entire lower-back-and-hip span as the throwing axis, then extending the opponent's arm forward to project them over the back
Joints Involved — Thrower's hips (deep pivot), spine (axis of rotation), shoulder (extending arm); opponent's wrist (grip control), elbow (alignment), shoulder (full extension over the throw axis)
Force Vector — Long spiral — the opponent travels in a wide arc over the thrower's lower back rather than being snapped over a discrete hip fulcrum
Distinction from Judo Koshi-waza — Judo koshi-waza loads force onto a hip pivot; aikido koshi-nage uses the entire body as a unified throwing axis with arm-extension as the primary force vector
Position & Entry
From single wrist grab (katate-dori) — Aikidoka pivots inside, drops centre, extends through uke's arm, projects them over the back
From two-hand grab (ryote-dori) — One hand redirects, the other extends; throw projects uke across the entire lower-back span
From shoulder grab (kata-dori) — Less common; the entry is into a deep hip-load pivot identical to judo's o-goshi but the projection is via arm-extension rather than hip-snap
Variants
Standard koshi-nage — Single-hand entry; full pivot under uke's centre
Two-hand koshi-nage — From ryote-dori; both hands engaged in the projection
Suwari-waza koshi-nage — Kneeling form (formal training; uncommon)
Yoshinkan compact form — Tighter rotation, more linear projection
Iwama-ryu form (Saito) — Emphasis on the ki extension through uke's arm
Videos
Koshi Nage. Part 4 2013.
0
Koshi Nage·Aikido: A Cooperating Process / Marc Bachraty
Dans cette vidéo, je vous montre comment réaliser ce mouvement: Koshi Nage. Aïkido Marc Bachraty #marcbachraty. #aikido.…
2 videos
Learn This Technique
No instructional courses yet for this technique.
Sign in to suggest a course.
Ratings
Risk of injury to the person this technique is applied to
5
High5/10
High — long projection requires uke to take a substantial forward breakfall (forward ukemi over a curved back). Insufficient ukemi can produce shoulder or back injury
Skill level needed to execute this technique reliably
Intermediate
Whether this technique is allowed under major competition rule sets
— IBJJF — Legal as throw
IBJJF Rules Book v6.0, June 2024PDF— ADCC — Legal
ADCC Rules Update, April 2025PDF— Unified MMA — Legal as standing throw
Unified Rules of MMA, August 2025PDF— judo would call this a koshi-waza variant
IJF Sport and Organisation Rules 2025PDFTraining Notes
✓Koshi nage requires committed deep entry — the thrower must pivot all the way under uke's centre of gravity, not partially
✓Pair training: drill long forward ukemi (over the partner's bent back) before practicing the throw
✓The arm extension is what differentiates aikido koshi-nage from judo's koshi-waza — extend through uke's wrist and elbow, do not just lift with the hip
✓Saito's Traditional Aikido vol. 1 has the canonical Iwama-ryu form; Westbrook & Ratti's Aikido and the Dynamic Sphere has detailed photographic sequences
✓Cross-training with judo o-goshi or harai-goshi is informative — the entry is similar but the projection mechanics differ
Common Mistakes
!Treating it as a judo hip throw — relying on hip snap rather than full-body extension produces a shorter, weaker throw
!Incomplete pivot — partial pivots fail to load uke properly
!Pulling rather than extending — the arm path is forward extension, not backward yank
!Standing too tall — the thrower must drop their centre below uke's centre of gravity
!Insufficient ukemi training — uke must be confident on long forward roll-outs before practicing at speed
Related Techniques
Counter Techniques
Setup Chain
1Receive Wrist or Sleeve Grab
2Pivot Inside Uke's Line
3Drop Centre Below Uke's Centre of Gravity
4Extend Through Uke's Arm
5Project Across Lower Back
6Recover Centre
Sources & References
Primary Source
Aikido (Kisshomaru Ueshiba, 1957)
1BookMorihei Ueshiba, Budo: Teachings of the Founder of Aikido (1991, posthumous)
Description sources — [1] Aikido (K. Ueshiba 1957); [2] Total Aikido (Shioda); [3] Traditional Aikido Vol 1 (Saito); [4] Aikido and the Dynamic Sphere (Westbrook & Ratti)
2BookKisshomaru Ueshiba, Aikido (1957)
Lineage sources — [1] Daito-ryu Aikijujutsu Conversations (Pranin); [2] Total Aikido (Shioda); [3] Traditional Aikido (Saito); [4] Aikido (K. Ueshiba 1957)
3BookGozo Shioda, Total Aikido: The Master Course (1996)
Effectiveness sources — [1] Aikikai pedagogy; [2] Tomiki/Shodokan competition records; [3] modern critique (Aikido Journal)
4BookMorihiro Saito, Traditional Aikido Vol 1: Basic Techniques (1973)
5BookWestbrook & Ratti, Aikido and the Dynamic Sphere (1970)
6SyllabusAikido Terminology
Aikido technique naming conventions
Standard Japanese martial arts terminology (kanji/hiragana)
8OtherJapanese Martial Arts Standard Terminology (武道用語)
Established Japanese martial arts naming convention — native Japanese term (和語/漢語)
9CitationMorihei Ueshiba, Budo: Teachings of the Founder of Aikido (1991, posthumous)
Description sources — [1] Aikido (K. Ueshiba 1957); [2] Total Aikido (Shioda); [3] Traditional Aikido Vol 1 (Saito); [4] Aikido and the Dynamic Sphere (Westbrook & Ratti)
10CitationKisshomaru Ueshiba, Aikido (1957)
Lineage sources — [1] Daito-ryu Aikijujutsu Conversations (Pranin); [2] Total Aikido (Shioda); [3] Traditional Aikido (Saito); [4] Aikido (K. Ueshiba 1957)
11CitationGozo Shioda, Total Aikido: The Master Course (1996)
Effectiveness sources — [1] Aikikai pedagogy; [2] Tomiki/Shodokan competition records; [3] modern critique (Aikido Journal)
12CitationMorihiro Saito, Traditional Aikido Vol 1: Basic Techniques (1973)
13CitationWestbrook & Ratti, Aikido and the Dynamic Sphere (1970)
Community
Athletics
Requires
hip mobility, balance under load, deep pivot strength, breakfall (long forward ukemi) skill
Key muscles
hip rotators, glutes, quadriceps (deep pivot), lats (extending arm), core (rotation control)
Notes
Koshi Nage is aikido's hip throw — uses the entire body as the throwing axis (not just the hip as a fulcrum, like judo's koshi-waza). Long spiral projection over the lower back. Requires confident long forward ukemi from the receiver.
Frequently Asked Questions
How does the Koshi Nage work?
Koshi Nage is the aikido hip throw — distinct from judo's koshi-waza in that the entire body, not just the hip, serves as the throwing axis. In aikido koshi-nage, the thrower turns deeply under the opponent's centre of gravity (a position similar to judo o-goshi or harai-goshi) but uses an arm extension and full-body rotation to project the opponent over the back, rather than relying on the hip as a discrete fulcrum.
Where does the Koshi Nage come from?
Koshi nage was systematised by Morihei Ueshiba and his senior students during the 1930s-1950s. The throw shares mechanical heritage with both Daito-ryu aiki-jujutsu (Ueshiba's parent art) and the koshi-waza of judo (which Ueshiba was familiar with through cross-style exposure).
Is the Koshi Nage legal in competition?
IBJJF: legal — Legal as throw; ADCC: legal — Legal; Unified MMA: legal — Legal as standing throw; IJF: legal — Legal as throw if entered cleanly (judo would call this a koshi-waza variant)
How dangerous is the Koshi Nage?
Danger rating 5/10. Moderate-high — long projection requires uke to take a substantial forward breakfall (forward ukemi over a curved back). Insufficient ukemi can produce shoulder or back injury
How do I set up the Koshi Nage?
The standard setup chain: Receive Wrist or Sleeve Grab → Pivot Inside Uke's Line → Drop Centre Below Uke's Centre of Gravity → Extend Through Uke's Arm → Project Across Lower Back → Recover Centre.
How do I defend against the Koshi Nage?
Standard counters include: Refuse the wrist or sleeve grab — koshi nage typically begins from a grab; deny the grip / Drop the centre — make the deep pivot impossible by lowering uke's hips / Stiff-arm at distance — break the connection before the spiral forms / Counter throw (ushiro-goshi or tani-otoshi) — at advanced level.
What are the variants of the Koshi Nage?
Common variants: Standard koshi-nage (Single-hand entry; full pivot under uke's centre); Two-hand koshi-nage (From ryote-dori; both hands engaged in the projection); Suwari-waza koshi-nage (Kneeling form (formal training; uncommon)); Yoshinkan compact form (Tighter rotation, more linear projection); Iwama-ryu form (Saito) (Emphasis on the ki extension through uke's arm).
How effective is the Koshi Nage in competition?
Tomiki / Shodokan toshu-randori. Generally non-competitive in Aikikai and Yoshinkan.
What are common mistakes when doing the Koshi Nage?
Top errors to watch for: Treating it as a judo hip throw — relying on hip snap rather than full-body extension produces a shorter, weaker throw / Incomplete pivot — partial pivots fail to load uke properly / Pulling rather than extending — the arm path is forward extension, not backward yank / Standing too tall — the thrower must drop their centre below uke's centre of gravity.
What are other names for the Koshi Nage?
The Koshi Nage is also known as Koshi-nage, Koshi Nage, Aikido Hip Throw, 腰投, Aiki Hip Throw.