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Leg Compression Defence·VOW BJJ
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Перевод: leg compression defence
Дистанция и классификация
Категория
Удар и защитаЗамкиБлижний бойБой против нескольких
Дистанция
БлижняяСредняяДальняя
Целевая зона
Верхняя частьСредняя частьНижняя часть
Обзор
The Leg Compression Defence subfamily covers defences against calf slicers and leg crushes, where the opponent places their shin across the back of the defender's knee or calf and folds the leg to compress the calf muscle against the fulcrum. [1] Defence against leg compressions focuses on preventing the leg from being folded and extracting the knee past the fulcrum point. [1],[2] The defender must act quickly because calf slicers can cause significant pain and potential injury to the knee ligaments in addition to the muscle compression. [2],[3]
История и происхождение
Leg compression defences grew in importance with the rise of modern leg lock systems, particularly after the Danaher Death Squad and other leg lock specialists made calf slicers a common competitive technique. [1] Defence against leg compressions is now standard curriculum in advanced BJJ training. [2],[3]
Страна происхождения· показано в случайном порядке
- БразилияБразильское джиу-джитсу, ММА
- Япония脚圧迫ディフェンス(Ashi Appaku Difensu)Бразильское джиу-джитсу
- СШАММА, Кэтч-реслинг
- РоссияСамбо
- АнглияКэтч-реслинг
Эффективность
Leg compression defence prevents calf slicers. [1]
Родословная
Developed in BJJ. [1]
Соревновательные результаты
Used in BJJ competition. [1]
Изображения
Изображений для этой техники пока нет.
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Биомеханический механизм
Primary Action — Preventing or reducing the effect of an incoming attack through physical interception, evasion, or structural positioning
Joints Involved — Varies by defence type — blocks use arms/shins, evasions use head/body movement, sprawls use hips
Force Vector — Opposing or tangential to the attack — either absorbing, redirecting, or evading the incoming force
Defensive Principle — Economy of motion — the best defence uses minimal movement to neutralise the maximum threat
Позиция и вход
From fighting stance (under fire) — Bring both hands to the head, elbows tight, tuck the chin — absorb the flurry while protecting vital targets
As emergency defence — When overwhelmed by volume, shell up in the cover position until the opponent pauses
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
3
Умеренный3/10
Submission defence involves resisting joint locks/chokes; risk of injury if defence fails or is delayed
Уровень мастерства, необходимый для надёжного выполнения техники
Средний
Разрешена ли техника по основным соревновательным правилам
— Unified MMA — Legal defensive technique
Unified Rules of MMA, August 2025PDF— IBJJF — Legal — defensive techniques are fundamental to g...
IBJJF Rules Book v6.0, June 2024PDF— IJF — Legal defensive action
IJF Sport and Organisation Rules 2025, Article 27PDF— ADCC — Legal
ADCC Rules Update, April 2025PDF— UWW — Legal defensive technique
UWW International Wrestling Rules, January 2026PDF— FIAS Sport Sambo — Legal
FIAS International Sambo Competition RulesPDFЗаметки по тренировке
✓Leg compression defence addresses calf slicers and knee-compression attacks that fold the calf against the thigh with a lever behind the knee (Danaher, Leg Lock System, 2018)
✓The primary defence is to straighten the leg — the calf slicer requires a deeply bent knee to create compression
✓Control the opponent's leg (usually the shin) that forms the lever behind your knee — remove or reposition it
✓Push the opponent's hips away to create space to extract your leg — hip control is essential for all leglock defence
✓Calf slicers are common from truck position, 50/50, and reverse half guard — learn the entries to defend them
✓The calf slicer can damage the MCL and meniscus, not just the calf — this makes it more dangerous than it appears
✓Hide the heel while defending the calf slicer — opponents often transition to heel hooks from the same position
✓Prevention: don't allow your leg to be trapped in a deeply bent position with a lever behind the knee
Типичные ошибки
!Bending the knee further to try to slip out — this deepens the compression and can cause immediate damage
!Not controlling the opponent's lever leg — the lever creates the compression; it must be addressed
!Ignoring the heel hook threat while defending the calf slicer — the same position allows multiple attacks
!Trying to stand up without first removing the lever — standing with the lever still in place can worsen the compression
!Not recognizing the calf slicer entry from common positions like truck and 50/50
!Defending only the pain without addressing the position — escape the position, not just the submission
!Pulling the leg straight out without controlling the opponent's body — they'll follow and reapply
Связанные техники
Контрприёмы
Цепочка подготовки
1Anticipate the Attack — read the opponent's intention through body cues
2Execute Defence — apply the specific defensive technique with proper timing
3Recover Stance — return to a balanced fighting position immediately
4Counter or Disengage — capitalize on the opening or create safe distance
Источники и ссылки
Основной источник
Boxing (Edwin Haislet, 1940)
1КнигаBoxing (Dempsey, 1950)
Alias sources — [1] Jiu-Jitsu University (Ribeiro, 2008) [2] Fundamentals of Brazilian Jiu-Jitsu (Danaher, 2012) [3] Brazilian Jiu-Jitsu: Theory and Technique (Gracie, 2001)
2КнигаKarate-Do Kyohan (Funakoshi, 1935)
Effectiveness sources — [1] Jiu-Jitsu University (Ribeiro, 2008)
3ДругоеJapanese Martial Arts Hybrid Terminology
Mixed Japanese-Western terminology — combines traditional Japanese terms with katakana loanwords
4ЦитатаBoxing (Dempsey, 1950)
Alias sources — [1] Jiu-Jitsu University (Ribeiro, 2008) [2] Fundamentals of Brazilian Jiu-Jitsu (Danaher, 2012) [3] Brazilian Jiu-Jitsu: Theory and Technique (Gracie, 2001)
5ЦитатаKarate-Do Kyohan (Funakoshi, 1935)
Effectiveness sources — [1] Jiu-Jitsu University (Ribeiro, 2008)
Сообщество
Атлетизм
Requires
reaction speed, structural body mechanics, defensive awareness
Favours
quick reflexes and conditioned defensive surfaces
Key muscles
varies — forearms (blocking), legs (movement), core (stability)
Подтехники
Ищите по тому, что делает техника, — а не по её названию
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Категория
Дистанция
Целевая зона
Часто задаваемые вопросы
How do I prevent my opponent from passing when I'm in the leg compression position?
Keep your outside leg activated for distance management and avoid allowing a cross face. Once you get your leg crossed over, you don't need to worry as much about the cross face because your leg blocks the pass (VOW BJJ).
What's the key to finishing the leg compression successfully?
Use a good underhook pulling your opponent's leg into your body and change the direction of their foot. This reduces their weight on you and allows you to come up through the position to finish (VOW BJJ).
How should I position my knee when applying leg compression?
Cross your outside leg over and get your knee on top of your opponent's leg, positioning yourself up on your shoulder. This positioning prevents them from bringing their leg behind them and allows you to rotate their leg (VOW BJJ).
Как работает Leg Compression Defence?
The Leg Compression Defence subfamily covers defences against calf slicers and leg crushes, where the opponent places their shin across the back of the defender's knee or calf and folds the leg to compress the calf muscle against the fulcrum. Defence against leg compressions focuses on preventing the leg from being folded and extracting the knee past the fulcrum point.
Откуда происходит Leg Compression Defence?
Leg compression defences grew in importance with the rise of modern leg lock systems, particularly after the Danaher Death Squad and other leg lock specialists made calf slicers a common competitive technique. Defence against leg compressions is now standard curriculum in advanced BJJ training.
Разрешён ли Leg Compression Defence на соревнованиях?
Unified MMA: разрешён — Legal defensive technique; IBJJF: разрешён — Legal — defensive techniques are fundamental to grappling; IJF: разрешён — Legal defensive action; ADCC: разрешён — Legal; UWW: разрешён — Legal defensive technique; FIAS Sport Sambo: разрешён — Legal
Насколько опасен Leg Compression Defence?
Оценка опасности 3/10. Moderate — submission defence involves resisting joint locks/chokes; risk of injury if defence fails or is delayed
Как подготовить Leg Compression Defence?
Стандартная цепочка подготовки: Anticipate the Attack → Execute Defence → Recover Stance → Counter or Disengage.
Как защититься от Leg Compression Defence?
Стандартные контрприёмы: Timing — attack when the defence is recovering or between movements / Feint — use deception to create openings in the defensive structure / Angle Change — attack from an unexpected angle that the defence does not cover.
Какие есть варианты Leg Compression Defence?
Распространённые варианты: Standard defence (primary defensive technique from the most common position); Reactive defence (triggered by the opponent's attack, minimal movement for …); Proactive defence (anticipating the attack and positioning to neutralise it …); Counter defence (using the defensive movement to create an immediate count…).
Насколько эффективен Leg Compression Defence на соревнованиях?
Used in BJJ competition.
Какие типичные ошибки при выполнении Leg Compression Defence?
Основные ошибки, на которые стоит обратить внимание: Bending the knee further to try to slip out — this deepens the compression and can cause immediate damage / Not controlling the opponent's lever leg — the lever creates the compression; it must be addressed / Ignoring the heel hook threat while defending the calf slicer — the same position allows multiple attacks / Trying to stand up without first removing the lever — standing with the lever still in place can worsen the compression.
Какие ещё названия есть у Leg Compression Defence?
Leg Compression Defence также известен как Ashi Appaku Difensu, Calf Slicer Defence, Leg Crush Defence, Calf Crush Escape.