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PROTECTION PRINCIPLES against a knife
Knife - one of most dangerous weapons, used for trainings.
In children's groups apply to study of engineering Jiu-jitsu and self-defenses the wooden or rubber prototypes of a knife,
but since youthful years through 1 - 1,5 years of employment obligatory are work in pairs with a knife with a metal edge.

The knifes are classified under the form, length and width of an edge, weight. In base preparation are used ordinary (table knife)
the knife of average length, which edge is blunt-shaped.
The protection against attack by a knife (against stab and cutting impacts) begins with training of a distance.
It is necessary to achieve precise comprehension of danger and only then to pass to blocks by hands, interceptions of attack.

The base preparation begins with a self-defense from simple stub impacts with the limited speed.
The trajectory of movement is stipulated (impact from above in a head, direct in a stomach, lateral in a head and others).
On each reception the correctness of the rack, situation of hands, distance is checked.

The professionals for training use knifes with different length and form. The attacks on complexity come nearer to real
Speeds and preparation also are not divided on a trajectory.
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