A Wristlock is a joint lock primarily affecting the wrist-joint and possibly the radioulnar joints through rotation of the hand. A wristlock is typically applied by grabbing the opponent's hand, and bending and/or twisting it. Wristlocks are very common in martial arts such as Aikido , Hapkido and jujutsu where they are featured as self-defense techniques. They are also used as submission holds in combat sports such as Brazilian jiu-jitsu (where the most common name is mão de vaca , "the cow's hand") and Catch wrestling .
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 positions. Commonly, spinal locks might strain the spinal musculature or result in a mild spinal sprain , while a forcefully and/or suddenly applied spinal lock may cause severe ligament damage or damage to the vertebrae , and possibly result in serious spinal cord injury , strokes , or death. Spinal locks can be separated into two categories based on their primary area of effect on the spinal column: spinal locks on the neck are called neck cranks and locks on the lower parts of the spine are called spine cranks . Primarily a feature of some martial arts and wrestling , a 2007 news article reported the dangerous use of spinal locks in Australia's National Rugby League . [ 1 ]
For the medical procedure, see Joint manipulation Small joint manipulation , in grappling , refers to twisting, pulling or bending fingers or toes to cause joint locks in the various joints in those appendages . Joint locks on fingers and toes are respectively referred to as finger locks and toe locks . [ edit ] Technique The leverage needed for such joint manipulation is comparatively small, since grabbing a finger or two with one or both hands creates a distinct advantage.
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 are featured, with various levels of restrictions, in combat sports and martial arts such as Sambo , Brazilian Jiu-Jitsu , catch wrestling , mixed martial arts , Shootwrestling and submission wrestling , but are banned in some sports featuring joint locks such as judo . [ 1 ] [ 2 ]
An armlock in grappling is a single or double joint lock that hyperextends , hyperflexes [ disambiguation needed ] or hyperrotates the elbow joint and/or shoulder joint . An armlock that hyperflexes or hyperrotates the shoulder joint is referred to as a shoulder lock , and an armlock that hyperextends the elbow joint is called an armbar . Depending on the joint flexibility of a person, armlocks that hyperrotate the shoulder joint can also hyperrotate the elbow joint, and vice versa.