Can Opener - Illegal BJJ Submission Neck Crank from Top Guard advanced Grappling for MMA - CanOpener
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Cervical Flexion Crank·Peter Mettler Martial Arts
Перевод: Cervical Spine Flexion Twist
Дистанция и классификация
Категория
Удар и защитаЗамкиБлижний бойБой против нескольких
Дистанция
БлижняяСредняяДальняя
Целевая зона
Верхняя частьСредняя частьНижняя часть
Обзор
Cervical flexion cranks force the opponent's chin toward their chest, compressing the anterior cervical spine and intervertebral discs. [1],[2] These cranks are often applied from front headlock positions or top mount, using body weight to drive the head downward. Cervical flexion can also restrict airway by tucking the chin, creating a hybrid choke-crank. [3],[4]
История и происхождение
Страна происхождения· показано в случайном порядке
- БразилияБразильское джиу-джитсу, Сабмишн-грэпплинг, ММА
- Япония頸椎屈曲捻り(Keitsui Kukkyoku Hineri)Бразильское джиу-джитсу, Дзюдо, Сабмишн-грэпплинг
- СШАСабмишн-грэпплинг, ММА
- РоссияСамбо
Эффективность
The cervical flexion crank forces the chin toward the chest, compressing the anterior cervical spine. [1]
Родословная
Cervical flexion cranks (can opener, neck crank) appear in catch wrestling and early MMA. [1]
Соревновательные результаты
Cervical flexion cranks are legal in MMA and some grappling events. [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 controlling position — Establish the dominant position, clear defensive grips, thread the choking limb into position
From guard (bottom) — Break the opponent's posture, isolate the neck and configure the choke from underneath
From transition — During a scramble or position change, secure the neck control and lock the choke before the opponent re-establishes defence
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
8
Очень высокий8/10
Cervical flexion cranks force the chin toward the chest, compressing the anterior cervical spine
Уровень мастерства, необходимый для надёжного выполнения техники
Продвинутый
Разрешена ли техника по основным соревновательным правилам
Запрещено
— IBJJF — Neck cranks and spinal locks prohibited at all be...
IBJJF Rules Book v6.0, June 2024PDF— IJF — Neck cranks prohibited
IJF Sport and Organisation Rules 2025, Article 27PDF— FIAS Sport Sambo — All chokes prohibited in Sport Sambo
FIAS International Sambo Competition RulesPDFРазрешено
— ADCC — Legal
ADCC Rules Update, April 2025PDF— Unified MMA — Legal — choke submissions are among the mos...
Unified Rules of MMA, August 2025PDF— FIAS Combat Sambo — Legal
FIAS Combat Sambo RulesPDFЗаметки по тренировке
✓The cervical flexion crank forces the opponent's chin toward their chest — hyperflexing the cervical spine beyond its comfortable range to stress the posterior ligaments and intervertebral discs (Paulson, Shoot Wrestling, 2007)
✓Flexion cranks target the posterior cervical structures: the nuchal ligament, interspinous ligaments, and posterior disc surfaces — the chin-to-chest compression creates pain and structural stress
✓From back control: the forearm across the back of the head drives the chin down — the opponent's neck is forced into maximal flexion while their body is held in place by hooks
✓The can opener is the quintessential cervical flexion crank: from inside closed guard, the attacker laces the hands behind the head and drives the chin to the chest using arm extension
✓Cervical flexion cranks are common in wrestling transitions: the crossface drives the opponent's head in flexion, combining neck control with cervical stress
✓The flexion crank is less dangerous than extension but still carries significant injury risk — disc herniations, ligament sprains, and muscle strains can result from forced flexion
✓In submission grappling, flexion cranks are often used as positional tools rather than submissions: the discomfort forces the opponent to change position, opening other attacks
Типичные ошибки
!Using the flexion crank as a finishing technique exclusively — it's often more effective as a positional tool that creates transitions to chokes and armbars
!Applying excessive force in training — flexion cranks can injure the cervical discs and ligaments; use controlled force
!Not differentiating between flexion for control and flexion for submission — control requires moderate pressure; submission requires end-range forcing; know which you're applying
!Cranking from a position without body control — the body must be anchored so the flexion force concentrates on the neck
!Ignoring the opponent's tap or pain signals — flexion cranks cause pain before structural damage; respond to taps immediately
!Applying flexion cranks against opponents with known neck injuries — the cervical spine is cumulative in its injury response; avoid cranks on injured partners
!Not transitioning when the opponent responds — flexion cranks should open other attacks; staying committed to a defended crank wastes position and energy
Связанные техники
Контрприёмы
Tuck Chin — protect the neck by lowering the chin to prevent the choke from sinkingTwo-on-One Grip Fight — use both hands to strip the choking grip before it locksTurn Into — rotate toward the choking arm to relieve carotid pressurePosture Up — straighten the spine and create distance to break the choking angle
Цепочка подготовки
1Achieve Controlling Position — secure the position from which the choke is applied
2Isolate the Neck — clear defending hands and establish access to the throat
3Set the Grip — lock the choking configuration (arm, lapel, or leg placement)
4Apply Pressure — squeeze to compress the carotid arteries for the finish
Источники и ссылки
Основной источник
Shooto Official Rules — anatomical terminology
1СоревнованиеShooto Official Rules
Japanese MMA pioneer organization — technique classification
Standard Japanese martial arts terminology (kanji/hiragana)
3ДругоеJapanese Martial Arts Standard Terminology (武道用語)
Established Japanese martial arts naming convention — native Japanese term (和語/漢語)
4ЦитатаShooto Official Rules — anatomical terminology
Japanese terminology sourced from Shooto Official Rules — anatomical terminology
Сообщество
Атлетизм
Requires
grip or squeeze strength, positional control
Favours
strong upper body for sustained compression
Key muscles
forearms, biceps, pectorals, core stabilisers
Подтехники
Ищите по тому, что делает техника, — а не по её названию
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Категория
Дистанция
Целевая зона
Can Opener
РодThe can opener is a cervical flexion crank applied from inside the opponent's closed guard by clasping both hands behind the opponent's head and forcefully driving the chin toward the chest. [1,2,3] The attacker interlaces the fingers behind the head and curls the opponent's neck forward, creating intense pressure on the cervical vertebrae and posterior neck muscles. [1,4] While primarily used as a guard-opening technique — forcing the opponent to uncross their ankles due to spine pain — the can opener can also force a tap from pure neck crank pressure. [1,5]
1 виды·3 техникиИсследовать
Chin Strap Neck Crank
РодThe chin strap neck crank uses a cupping grip under the opponent's chin to force cervical flexion — driving the chin toward the chest. [1,2] The attacker places one or both hands under the chin in a 'strap' configuration and pushes or pulls the head downward and forward. [1] Unlike the can opener which uses interlaced fingers behind the head, the chin strap applies direct upward pressure under the jaw to flex the neck. [1,3] It is commonly used from top position to break posture or force a submission. [1]
1 виды·3 техникиИсследовать
Cradle Neck Crank
РодThe cradle neck crank combines a wrestling cradle — where the attacker links the opponent's head and leg together — with cervical flexion pressure. [1,2,3] The attacker clasps hands connecting the head and knee, then squeezes to fold the opponent, driving the chin toward the knee and creating intense flexion pressure on the cervical spine. [1,4] The cradle position provides exceptional control because the linked head-to-leg connection immobilizes the torso while the cranking force is applied to the neck. [1,5]
3 виды·6 техникиИсследовать
Часто задаваемые вопросы
What's the basic setup for a cervical flexion crank from top guard?
You need head control and then roll your opponent into position. Peter Mettler emphasizes that all you need is to grab the back of the head fairly high, lift slightly, and drive your elbow in to apply the crank.
How do I prevent my opponent from escaping the cervical flexion crank?
Use your knees to control your opponent's hips by pulling them toward your hips and keeping your knees tight, which allows you to maintain the crank even if they try to push your head off or push against your face.
Why is the cervical flexion crank so effective in top guard?
According to Peter Mettler, this technique is so effective that it was outlawed in many competitions specifically because of its danger and the difficulty opponents have defending it from top guard.
Как работает Cervical Flexion Crank?
Cervical flexion cranks force the opponent's chin toward their chest, compressing the anterior cervical spine and intervertebral discs. These cranks are often applied from front headlock positions or top mount, using body weight to drive the head downward.
Откуда происходит Cervical Flexion Crank?
Flexion-based neck attacks appear in multiple grappling traditions, used in wrestling as control techniques and in jujutsu as finishing submissions.
Разрешён ли Cervical Flexion Crank на соревнованиях?
IBJJF: запрещён — Neck cranks and spinal locks prohibited at all belt levels; IJF: запрещён — Neck cranks prohibited; ADCC: разрешён — Legal; Unified MMA: разрешён — Legal — choke submissions are among the most common finishes in MMA; FIAS Sport Sambo: запрещён — All chokes prohibited in Sport Sambo; FIAS Combat Sambo: разрешён — Legal
Насколько опасен Cervical Flexion Crank?
Оценка опасности 8/10. Cervical flexion cranks force the chin toward the chest, compressing the anterior cervical spine
Как подготовить Cervical Flexion Crank?
Стандартная цепочка подготовки: Achieve Controlling Position → Isolate the Neck → Set the Grip → Apply Pressure.
Как защититься от Cervical Flexion Crank?
Стандартные контрприёмы: Tuck Chin — protect the neck by lowering the chin to prevent the choke from sinking / Two-on-One Grip Fight — use both hands to strip the choking grip before it locks / Turn Into — rotate toward the choking arm to relieve carotid pressure / Posture Up — straighten the spine and create distance to break the choking angle.
Какие есть варианты Cervical Flexion Crank?
Распространённые варианты: Standard grip variation (primary hand configuration for maximum choking pressure); Gi variation (uses the lapel or collar as an anchor for additional fric…); No-gi variation (adapted grip and positioning for submission grappling wit…); Transition finish (applied during a positional change to catch the opponent …).
Насколько эффективен Cervical Flexion Crank на соревнованиях?
Cervical flexion cranks are legal in MMA and some grappling events.
Какие типичные ошибки при выполнении Cervical Flexion Crank?
Основные ошибки, на которые стоит обратить внимание: Using the flexion crank as a finishing technique exclusively — it's often more effective as a positional tool that cr… / Applying excessive force in training — flexion cranks can injure the cervical discs and ligaments; use controlled force / Not differentiating between flexion for control and flexion for submission — control requires moderate pressure; subm… / Cranking from a position without body control — the body must be anchored so the flexion force concentrates on the neck.
Какие ещё названия есть у Cervical Flexion Crank?
Cervical Flexion Crank также известен как Keitsui Kukkyoku Hineri, Neck Flexion Lock, Anterior Cervical Crank, Chin-to-Chest Crank.