Legacy Martial Arts Center Chop Instructions
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Standard Chop Strike·Legacy Martial Arts·Added by Admin
Standard Chop Strike
Genusチョップ打ち（基本型）(Choppu-uchi (Kihon-gata))
TransliterationTranslation: standard chop strike
Overview
History & Origin
The standard chop strike is the basic execution of an edge-of-hand blow, typically targeting the neck or collarbone with the ulnar edge of the hand. [1] Fairbairn described this as one of the simplest yet most effective close-combat strikes, requiring minimal training to execute effectively. [2] The technique was widely taught in Allied military training during World War II and subsequently incorporated into post-war self-defence and law enforcement programmes. [2] In Japanese martial arts, the equivalent chopping motion forms the basis of several shuto (knife hand) and tegatana (hand sword) techniques. [3]
Effectiveness
A standard chop technique. [1]
Lineage
From karate. [1]
Competition Record
Used in competition. [1]
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Biomechanical Mechanism
Primary Action — Generating and transferring kinetic energy from the body into the target through a striking surface
Joints Involved — Varies by technique — typically hip rotation, shoulder or hip flexion, and distal limb extension
Force Vector — Direction determined by the specific technique — linear, circular, or diagonal trajectory
Kinetic Chain — Ground reaction force transfers through the body's kinetic chain — each segment accelerates the striking limb
Position & Entry
From fighting stance — Extend the arm with fingers together, strike with the blade edge (ulnar side) of the open hand in a chopping arc
From close range — Short knife-hand strike to the neck, temple, or collarbone
Variants
Standard variation — primary execution of the strike from the most common stance
Power variation — modified mechanics for maximum force generation
Speed variation — minimised telegraph for a faster, harder-to-read attack
Counter variation — timed to exploit the opponent's offensive commitment
Videos
1 video
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Ratings
Risk of injury to the person this technique is applied to
4
Moderate4/10
Open hand chopping strike; less force than closed fist
Skill level needed to execute this technique reliably
Beginner
Whether this technique is allowed under major competition rule sets
Illegal
WBC/Boxing — Only closed-fist punches permitted {src— WBC Rules of Boxing}
Kyokushin — Only closed-fist strikes to body permitted {src— IKO Kyokushin Tournament Rules}
— WT — Prohibited
WT Competition Rules 2024PDF— WAKO — Closed fist only
WAKO Competition RulesPDFK-1/GLORY — Closed fist only {src— K-1/GLORY Kickboxing Rules}
Restricted
— WKF — Varies by technique — some open-hand strikes legal ...
WKF Competition Rules 2024PDF— ITF — Some knife hand techniques legal
ITF Competition RulesPDFLegal
— palm strikes, slaps permitted
Unified Rules of MMA, August 2025PDF— IFMA — Legal — palm strikes permitted in Muay Thai
IFMA Muay Thai RulesPDFTraining Notes
✓Begin from a standard fighting guard with both hands up
✓Raise the chopping hand above the shoulder, keeping the elbow pointed at the target
✓Drive the knife edge of the hand downward at a 45-degree angle into the side of the opponent's neck
✓The shoulder and lat muscles power the chop — it is not a wrist flick
✓Tighten the hand at the moment of impact for maximum rigidity
✓The non-striking hand stays at the chin for protection
✓Follow through slightly and then retract to guard — the entire motion is similar to a hammer blow but with the open hand edge
Common Mistakes
!Telegraphing by raising the hand high above the head in a visible windup
!Using a horizontal chop trajectory at the neck when a diagonal delivers more force
!Not engaging the shoulder and back muscles — arm-only chops are weak
!Striking with a loose, relaxed hand — the hand must be rigid on impact
!Aiming at the trapezius muscle instead of the side of the neck — the neck is the effective target
!Dropping the guard hand during the chop, exposing the chin
!Over-rotating on the chop and turning the back toward the opponent
Related Techniques
Counter Techniques
Setup Chain
1Assume Fighting Stance — begin from a balanced position with guard up
2Generate Power — use hip rotation and weight transfer for maximum force
3Execute Strike — deliver the technique to the target with correct form
4Recover to Guard — return immediately to defensive position
Sources & References
Primary Source
Karate-Do Kyohan: The Master Text (Gichin Funakoshi, 1935)
1BookBoxing (Dempsey, 1950)
Alias sources — [1] Karate-Do Kyohan (Funakoshi, 1935) [2] Dynamic Karate (Nakayama, 1966) [3] Kukkiwon Taekwondo Textbook (Kukkiwon, 2006)
2BookMuay Thai: The Art of Fighting (Kraitus, 2002)
History sources — [1] The Art of Striking (Blauer, 2004) [2] Get Tough! (Fairbairn, 1942) [3] Best Karate Vol. 3 (Nakayama, 1978)
3OtherJapanese Combat Sports Katakana Convention
Standard katakana transliteration of Western martial arts terminology (外来語) — used in Japanese MMA, boxing, and BJJ communities
4CitationBoxing (Dempsey, 1950)
Alias sources — [1] Karate-Do Kyohan (Funakoshi, 1935) [2] Dynamic Karate (Nakayama, 1966) [3] Kukkiwon Taekwondo Textbook (Kukkiwon, 2006)
5CitationMuay Thai: The Art of Fighting (Kraitus, 2002)
History sources — [1] The Art of Striking (Blauer, 2004) [2] Get Tough! (Fairbairn, 1942) [3] Best Karate Vol. 3 (Nakayama, 1978)
Community
Athletics
Requires
speed, power generation through kinetic chain, striking surface conditioning
Favours
athletic build with fast-twitch muscle fibres
Key muscles
varies by strike — hip rotators, shoulders, core
Frequently Asked Questions
How should my hand be positioned when performing a standard chop strike?
Your palm should be rotated to face away from you, with your hand positioned so the strength comes from the outside edge of your hand. Legacy Martial Arts emphasizes this hand rotation is critical for both striking and defending.
What's a good drill to practice the basic chop strike technique?
Cross both of your arms in front of you as if waving hello with both hands, then practice stepping forward and twisting into the chop strike repeatedly. Legacy Martial Arts recommends performing this drill ten times to build proper form.
How does the Standard Chop Strike work?
The basic chopping strike raising the hand and driving the outer edge down onto the target in a committed downward arc, targeting the base of the neck or trapezius.
Where does the Standard Chop Strike come from?
The standard chop strike is the basic execution of an edge-of-hand blow, typically targeting the neck or collarbone with the ulnar edge of the hand. Fairbairn described this as one of the simplest yet most effective close-combat strikes, requiring minimal training to execute effectively.
Is the Standard Chop Strike legal in competition?
Unified MMA: legal — Legal (palm strikes, slaps permitted); WBC/Boxing: banned — Only closed-fist punches permitted; WKF: restricted — Varies by technique — some open-hand strikes legal in kata, generally restric…; Kyokushin: banned — Only closed-fist strikes to body permitted; WT: banned — Prohibited; ITF: restricted — Some knife hand techniques legal; WAKO: banned — Closed fist only; K: banned — 1/GLORY — Closed fist only; IFMA: legal — Legal — palm strikes permitted in Muay Thai
How dangerous is the Standard Chop Strike?
Danger rating 4/10. Moderate — open hand chopping strike; less force than closed fist
How do I set up the Standard Chop Strike?
The standard setup chain: Assume Fighting Stance → Generate Power → Execute Strike → Recover to Guard.
How do I defend against the Standard Chop Strike?
Standard counters include: Block — absorb the strike with a protective guard position / Evasion — move the target out of the strike's path / Counter-Attack — time an offensive response during the recovery phase of the strike.
What are the variants of the Standard Chop Strike?
Common variants: Standard variation (primary execution of the strike from the most common stance); Power variation (modified mechanics for maximum force generation); Speed variation (minimised telegraph for a faster, harder-to-read attack); Counter variation (timed to exploit the opponent's offensive commitment).
How effective is the Standard Chop Strike in competition?
Used in competition.
What are common mistakes when doing the Standard Chop Strike?
Top errors to watch for: Telegraphing by raising the hand high above the head in a visible windup / Using a horizontal chop trajectory at the neck when a diagonal delivers more force / Not engaging the shoulder and back muscles — arm-only chops are weak / Striking with a loose, relaxed hand — the hand must be rigid on impact.
What are other names for the Standard Chop Strike?
The Standard Chop Strike is also known as Choppu-uchi (Kihon-gata), Standard Shuto Uchi, Standard Knife Hand Strike, Sonnal Chigi.