Calf slicer variations
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Calf Slicer Choke·Michael Robinson
Three Calf Slicer variants I have been working on. The last two are variations that I've figured out recently. Knowing t…
Перевод: calf slicer choke
Дистанция и классификация
Категория
Удар и защитаЗамкиБлижний бойБой против нескольких
Дистанция
БлижняяСредняяДальняя
Целевая зона
Верхняя частьСредняя частьНижняя часть
Обзор
The calf slicer (also called calf crush or calf compression) works by placing a hard fulcrum — typically the shin or forearm — behind the opponent's knee and folding the lower leg back, crushing the calf muscle between the fulcrum and the femur. [1],[2] The technique generates intense pain through deep muscle compression and can also hyperextend the knee joint. Calf slicers are commonly entered from leg entanglement positions, back control (particularly when an opponent tries to clear hooks), and as counters to berimbolo and inversion-based guard passes. [3] In IBJJF competition, calf slicers are legal only at brown belt and above; in ADCC and MMA, they are unrestricted. The calf slicer has become increasingly important in modern no-gi grappling as leg lock games have expanded.
История и происхождение
The calf slicer has long been a standard technique in sambo competition, where leg attacks (including compressions) have been central since the sport's formalization in the 1930s. [1],[2] In Brazilian Jiu-Jitsu, the calf slicer was historically underutilized but gained significant popularity in the 2010s as competitors developed sophisticated leg entanglement systems. [3] The technique is now a common feature of ashi garami (leg entanglement) offense, used both as a primary finish and as a way to create reactions that open up heel hook and kneebar entries.
Страна происхождения· показано в случайном порядке
- БразилияБразильское джиу-джитсу, Сабмишн-грэпплинг, ММА
- ЯпонияБразильское джиу-джитсу, Дзюдо, Сабмишн-грэпплинг
- СШАСабмишн-грэпплинг, ММА
- РоссияСамбо
Эффективность
The calf slicer (or calf crusher) compresses the calf muscle against the bone, creating intense pain and potential injury. [1]
Родословная
Calf slicers were adopted from sambo into BJJ and are classified as compression locks. [1]
Соревновательные результаты
Calf slicers are legal at brown and black belt in IBJJF, and in ADCC and MMA competitions. [1]
Изображения
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Биомеханический механизм
Primary Action — Anterior compression of the trachea and airway — direct pressure on the throat restricts breathing and triggers tap
Joints Involved — Cervical spine (flexion under pressure), hyoid bone region, laryngeal cartilage
Force Vector — Posterior-to-anterior force drives the forearm or wrist blade into the throat
Choking Mechanism — Tracheal compression — restricts air flow rather than blood flow, causing sensation of suffocation
Позиция и вход
From top half guard — Thread the shin behind opponent's knee, triangle the legs to trap the calf, extend to compress
From truck position — Control from the truck, thread the leg across the calf and lock the compression
From ashi garami — During leg entanglement, reposition the shin across the calf and apply the slicer
Видео
1 video
Изучить технику
Учебных курсов по этой технике пока нет.
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Оценки
Риск травмы для человека, к которому применяется техника
7
Очень высокий7/10
Calf slicers compress the calf muscle against the shin bone and can simultaneously attack the knee
Уровень мастерства, необходимый для надёжного выполнения техники
Продвинутый
Разрешена ли техника по основным соревновательным правилам
Запрещено
— IJF — Only elbow joint locks permitted in judo — compress...
IJF Sport and Organisation Rules 2025, Article 27PDFОграничено
— IBJJF — Brown and black belt only
IBJJF Rules Book v6.0, June 2024PDFРазрешено
— ADCC — Legal
ADCC Rules Update, April 2025PDF— Unified MMA — Legal
Unified Rules of MMA, August 2025PDF— FIAS Sport Sambo — Legal
FIAS International Sambo Competition RulesPDF— FIAS Combat Sambo — Legal
FIAS Combat Sambo RulesPDFЗаметки по тренировке
✓The calf slicer (calf crusher) compresses the calf muscle against the shin bone by inserting a fulcrum behind the knee and folding the lower leg — causing extreme pain and potential knee damage (Danaher, Leg Lock Anthology, 2019)
✓The attacker inserts their shin or forearm behind the opponent's knee, then folds the lower leg back against the fulcrum — crushing the calf muscle
✓The calf slicer also threatens the knee: as the lower leg folds, the knee joint is hyperflexed — creating both compression pain and joint damage risk
✓This submission commonly appears from the truck position, from leg entanglements, and when transitioning from failed heel hooks
✓The calf slicer is legal in IBJJF from brown belt, in ADCC and no-gi at all levels, and in MMA
✓The key setup: control the opponent's hip and thigh while inserting the shin behind their knee — the hip control prevents them from straightening the leg
✓Imanari and the Danaher Death Squad popularised the modern calf slicer as part of systematic leg attack sequences
Типичные ошибки
!Applying without hip control — if the opponent can extend their leg, the slicer releases; control the hip to prevent extension
!Placing the fulcrum too deep behind the knee — the shin should be positioned just behind the knee crease for maximum effect
!Cranking too fast — the calf slicer causes sudden intense pain and can damage the knee; controlled application is essential
!Not recognising the knee danger — the calf slicer threatens knee hyperflexion; both attacker and defender must be aware
!Attempting without proper leg entanglement — the slicer requires control of the opponent's leg; unsecured attempts fail
!Ignoring the back-take opportunity — many calf slicer positions also allow taking the back; if the slicer isn't working, transition
!Using arm strength to fold the leg — use body positioning and leverage to create the fold; arms alone are insufficient
Связанные техники
Контрприёмы
Цепочка подготовки
1Establish Position — achieve the controlling position needed for this submission
2Create the Threat — begin the submission setup to force a defensive reaction
3Secure the Hold — lock the submission grip with proper body mechanics
4Finish — apply increasing pressure until the opponent taps or the joint/choke takes effect
Источники и ссылки
Основной источник
Shooto / Japanese Catch Wrestling
1КнигаShooto / Japanese Catch Wrestling
Japanese terminology sourced from Shooto / Japanese Catch Wrestling
2ДругоеShooto (Japanese MMA)
Japanese MMA pioneer organization — technique terminology
3ДругоеJapanese Combat Sports Katakana Convention
Standard katakana transliteration of Western martial arts terminology (外来語) — used in Japanese MMA, boxing, and BJJ communities
4ЦитатаShooto / Japanese Catch Wrestling
Japanese terminology sourced from Shooto / Japanese Catch Wrestling
Сообщество
Атлетизм
Requires
shin pressure, leg triangling ability
Favours
bony, angular shins for sharper compression
Key muscles
quadriceps, hamstrings, calf muscles (for leg triangle lock)
Подтехники
Ищите по тому, что делает техника, — а не по её названию
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Категория
Дистанция
Целевая зона
Заметки
The calf slicer appears in Jiu Jitsu Style (2015) in competition context: 'Rocha hit a slick x-guard transition before locking off a calf slicer submission attempt.' A compression lock that uses the shin across the back of the opponent's calf. Banned in IBJJF below brown belt. (Jiu Jitsu Style 28, 2015; IBJJF Rules v6.0)
Часто задаваемые вопросы
How do I set up a calf slicer when my opponent grabs my pant legs?
According to Michael Robinson, the calf slicer can actually be executed more easily when your opponent grabs your pant legs, as this gives you a clear setup opportunity to attack the position.
What's an important detail when throwing the leg over for a calf slicer?
Michael Robinson emphasizes making sure your hand reaches far enough through when you throw the leg over, so you're not left fishing for grip and can grab easily if needed.
Can you do a calf slicer from a standing position?
Yes, Michael Robinson notes that there are calf slicer variations that work from stand-up, and while they tend to work well with the gi, they can also be done no-gi.
What positioning should I use to attack the calf slicer from sit-up guard?
Michael Robinson recommends working from sit-up guard and attacking 'outside the inside,' where you come around and keep the opponent's leg down while setting up the submission.
Как работает Calf Slicer Choke?
The calf slicer (also called calf crush or calf compression) works by placing a hard fulcrum — typically the shin or forearm — behind the opponent's knee and folding the lower leg back, crushing the calf muscle between the fulcrum and the femur. The technique generates intense pain through deep muscle compression and can also hyperextend the knee joint.
Откуда происходит Calf Slicer Choke?
The calf slicer has long been a standard technique in sambo competition, where leg attacks (including compressions) have been central since the sport's formalization in the 1930s. In Brazilian Jiu-Jitsu, the calf slicer was historically underutilized but gained significant popularity in the 2010s as competitors developed sophisticated leg entanglement systems.
Разрешён ли Calf Slicer Choke на соревнованиях?
IBJJF: ограничен — Brown and black belt only; IJF: запрещён — Only elbow joint locks permitted in judo — compression locks prohibited; ADCC: разрешён — Legal; Unified MMA: разрешён — Legal; FIAS Sport Sambo: разрешён — Legal; FIAS Combat Sambo: разрешён — Legal
Насколько опасен Calf Slicer Choke?
Оценка опасности 7/10. Calf slicers compress the calf muscle against the shin bone and can simultaneously attack the knee
Как подготовить Calf Slicer Choke?
Стандартная цепочка подготовки: Establish Position → Create the Threat → Secure the Hold → Finish.
Как защититься от Calf Slicer Choke?
Стандартные контрприёмы: Early Recognition — identify the submission attempt early and begin defence immediately / Posture and Base — maintain strong posture and base to prevent submission setups / Grip Fight — deny the attacker their preferred gripping configuration.
Какие есть варианты Calf Slicer Choke?
Распространённые варианты: Standard calf slicer (shin across the calf with triangle leg lock compressing t…); Truck calf slicer (applied from truck position after a back-take attempt); Standing calf slicer (trapping the calf during a scramble or guard exchange).
Насколько эффективен Calf Slicer Choke на соревнованиях?
Calf slicers are legal at brown and black belt in IBJJF, and in ADCC and MMA competitions.
Какие типичные ошибки при выполнении Calf Slicer Choke?
Основные ошибки, на которые стоит обратить внимание: Applying without hip control — if the opponent can extend their leg, the slicer releases; control the hip to prevent … / Placing the fulcrum too deep behind the knee — the shin should be positioned just behind the knee crease for maximum … / Cranking too fast — the calf slicer causes sudden intense pain and can damage the knee; controlled application is ess… / Not recognising the knee danger — the calf slicer threatens knee hyperflexion; both attacker and defender must be aware.
Какие ещё названия есть у Calf Slicer Choke?
Calf Slicer Choke также известен как Kāfu Suraisā Chōku, Calf Crush, Calf Compression, Leg Slicer.