Joint lock

The lever is the application of the law of the lever at the opponent in martial arts or self-defense. The lever can be achieved with certain grips. They are particularly common for martial arts with full contact (eg Judo and Ju-Jitsu ). Lever belong to Grappling.

In a lever technique limbs ( extremities) to be addressed; in detail these are the joints of the upper extremities and the lower extremities (eg, legs and knees ) and the shoulder, fingers, hands, and feet.

Since the joints are not in all directions are equally durable, this limit is used ( " stop " ) as an abutment. In addition, there are postures in which the counterparty to which the lever is applied, has no opportunity to apply his own muscle power against the lever. The leverage in to link is first brought into a suitable position in which it can not be turned out of the grip of the attacker, and then loaded in a certain direction, which causes severe pain.

Target of a lever is the to -case matching or fixing. To put a lever, you have to have the question limb of the opponent under control.

Levers are often set with one or both hands, can also be generated with the forearms or legs. Sometimes the hull is to be supportive. A lever should be done quickly, so that the opponent can not initiate countermeasures.

Lever will not run in scrimmages with all your strength. Once the lever acts, it is common to see its task by tapping ( Mairi ) on the floor or the partner. Too much bravery is generally not advised because cause injury such as over- stretching of the ligaments or fracture of the joint. A serious violation may lead to the member is not life be resilient (rubber joint), and that set diseases such as rheumatism and arthritis.

For this reason, all the levers are not allowed in any sport. So only lever on the elbow joints are, for example judo today allowed, while in real self-defense systems, everything is applied, what is profitable promising (eg also neckcranks ).

Categories

There are the following types to set and execute a lever:

• Stretching lever, in which an elongated hinge (e.g. the elbows ) leveraged. The joint is leveraged here by hyperextension.
• Bend lever, in which a bent hinge leveraged.
• Rotary lever, wherein a bent joint is rotated about the longitudinal axis of the portion located closer to the fuselage. Thus, for example, at the elbow flexed, the forearm are used to rotate the upper arm about its longitudinal axis.