Small joint manipulation
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Small joint manipulation, in
grappling Grappling, in hand-to-hand combat, describes sports that consist of gripping or seizing the opponent. Grappling is used at close range to gain a physical advantage over an opponent, either by imposing a position or causing injury. Grappling ...
, refers to twisting, pulling or bending
finger A finger is a limb of the body and a type of digit, an organ of manipulation and sensation found in the hands of most of the Tetrapods, so also with humans and other primates. Most land vertebrates have five fingers ( Pentadactyly). Chamber ...
s,
toes Toes are the digits (fingers) of the foot of a tetrapod. Animal species such as cats that walk on their toes are described as being ''digitigrade''. Humans, and other animals that walk on the soles of their feet, are described as being ''plan ...
,
wrists In human anatomy, the wrist is variously defined as (1) the carpus or carpal bones, the complex of eight bones forming the proximal skeletal segment of the hand; "The wrist contains eight bones, roughly aligned in two rows, known as the carpal ...
and
ankles The ankle, or the talocrural region, or the jumping bone (informal) is the area where the foot and the leg meet. The ankle includes three joints: the ankle joint proper or talocrural joint, the subtalar joint, and the inferior tibiofibular joint ...
to cause
joint lock A joint lock is a grappling technique involving manipulation of an opponent's joints in such a way that the joints reach their maximal degree of motion and hyperextension. In judō these are referred to as, 関節技 ''kansetsu-waza'', "joint lo ...
s in the various
joint A joint or articulation (or articular surface) is the connection made between bones, ossicles, or other hard structures in the body which link an animal's skeletal system into a functional whole.Saladin, Ken. Anatomy & Physiology. 7th ed. McGraw- ...
s in those
appendage An appendage (or outgrowth) is an external body part, or natural prolongation, that protrudes from an organism's body. In arthropods, an appendage refers to any of the homologous body parts that may extend from a body segment, including ante ...
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Technique

Most small joint manipulation is done on the hands or feet to hyperextend joints as part of a pain compliance strategy. The basic techniques of small-joint manipulation involve grabbing and bending back one or more fingers/toes and by applying pressure to the wrist/ankle joints that disrupt the interconnectivity of the system of smaller joints within. If pain compliance does not work, such hyperextension can tear tendons in the wrist or break the smaller bones in the hands and feet. The
lever A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or '' fulcrum''. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load and effort, the lever is d ...
age needed for such joint manipulation is comparatively small and creates a distinct advantage over techniques in martial arts that require the exertion of large amounts of force, thus small joint manipulation can allow a weaker person, with the right training, to control a stronger one. Small joint manipulation is an illegal technique in most combat sports that feature
joint lock A joint lock is a grappling technique involving manipulation of an opponent's joints in such a way that the joints reach their maximal degree of motion and hyperextension. In judō these are referred to as, 関節技 ''kansetsu-waza'', "joint lo ...
ing such as
Brazilian Jiu-Jitsu Brazilian jiu-jitsu (BJJ; pt, jiu-jitsu brasileiro ) is a self-defence martial art and combat sport based on grappling, ground fighting (ne-waza) and submission holds. BJJ focuses on the skill of taking an opponent to the ground, control ...
,
judo is an unarmed modern Japanese martial art, Olympic sport (since 1964), and the most prominent form of jacket wrestling competed internationally.『日本大百科全書』電子版【柔道】(CD-ROM version of Encyclopedia Nipponica, "Judo") ...
,
mixed martial arts Mixed martial arts (MMA), sometimes referred to as cage fighting, no holds barred (NHB), and ultimate fighting, and originally referred to as Vale Tudo is a full-contact combat sport based on striking, grappling and ground fighting, incor ...
and
Sambo , aka = Sombo (in English-speaking countries) , focus = Hybrid , country = Soviet Union , pioneers = Viktor Spiridonov, Vasili Oshchepkov, Anatoly Kharlampiev , famous_pract = List of Practitioners , olymp ...
, since unlike standard joint locks, there is less of an opportunity to submit before the small joint breaks. Most combat sports post-2015 have identified and limited definitions of small joint locks to finger and toe locks. Although, wrist locks are also severely limited in most of these sports because of rules forbidding grabbing handguards or hands, forbidding the use of pressure points, and the protections provided from the handguards and taping of the wrists. Small Joint Locks are, however, taught as a
self-defense Self-defense (self-defence primarily in Commonwealth English) is a countermeasure that involves defending the health and well-being of oneself from harm. The use of the right of self-defense as a legal justification for the use of force ...
and
pain compliance Pain compliance is the use of painful stimulus to control or direct an organism. The stimulus can be manual (brute force, placing pressure on painful areas, or use of painful hyperextension or hyperflexion on joints), use tools such as a whip or ...
technique, for instance in
hapkido Hapkido ( , , also spelled ''hap ki do'' or ''hapki-do''; from Korean 합기도 ''hapgido'' ) is a hybrid Korean martial art. It is a form of self-defense that employs joint locks, grappling, throwing techniques, kicks, punches, and other s ...
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Chin Na Qinna () is the set of joint lock techniques used in the Chinese martial arts to control or lock an opponent's joints or muscles/tendons so they cannot move, thus neutralizing the opponent's fighting ability. ''Qinna Shu'' ( meaning "technique") ...
,
jujutsu Jujutsu ( ; ja, link=no, 柔術 , ), also known as jiu-jitsu and ju-jitsu, is a family of Japanese martial arts and a system of close combat (unarmed or with a minor weapon) that can be used in a defensive or offensive manner to kill or subd ...
,
Krav Maga Krav Maga ( ; , ; ) is an Israeli martial art. Developed for the Israel Defense Forces (IDF), it is derived from a combination of techniques used in aikido, judo, karate, boxing, and wrestling. It is known for its focus on real-world situation ...
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aikido Aikido ( , , , ) is a modern Japanese martial art that is split into many different styles, including Iwama Ryu, Iwama Shin Shin Aiki Shuren Kai, Shodokan Aikido, Yoshinkan, Renshinkai, Aikikai and Ki Aikido. Aikido is now practiced in aroun ...
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See also

*
Armlock An armlock in grappling is a single or double joint lock that hyperextends, hyperflexes or hyperrotates the elbow joint or shoulder joint. An armlock that hyper-extends the arm is known as an armbar, and it includes the traditional armbar, ...
*
Leglock A leglock is a joint lock that is directed at joints of the leg such as the ankle, knee or hip joint. A leglock which is directed at joints in the foot, is sometimes referred to as a foot lock and a lock at the hip as a hip lock. Leglocks ar ...
*
Spinal lock In combat sports, a spinal lock is a multiple joint lock applied to the spinal column, which is performed by forcing the spine beyond its normal ranges of motion. This is typically done by bending or twisting the head or upper body into abnormal po ...
* Wristlock


References

Grappling positions Joint locks {{martialart-stub