Wednesday, June 17, 2009

ASHI-WAZA _Foot and Leg Techniques (Theory)







GERI-WAZA
Foot-Striking Techniques

How to Kick

1. Raising the Knee

Raise the knee up as high as possible and fully bent (the angle of the back of the knee is minimum), and shift the weight of the kicking leg toward the hips.
Part of the reason for bending the knee fully is to keep the weight of the kicking leg as close as possible to the trunk. The kick has greater power if the leg is initially close to the body.
The raised-knee position differs from technique to technique.

2. Snapping or Thrusting Kick

There are two ways of kicking. The first is done with a snapping, and in most kicks, an upward movement of the foot. The second by straightened the knee forcefully and thrust the foot outward, and often downward.

3. The Length of the Arc

The longer of the arc the foot travels, the stronger the kick.

4. Spring of the Hips or Shifting of the Body Weight

To achieve maximum power, kick with the whole body instead of with the leg alone (putting your whole body weight into it).
Pushing the hips forward during the kick helps achieve this goal. Push the hips toward the target as the leg drives out and immediately withdraw them again as the leg is retracted.

5. The Supporting Leg (Its Knee and Ankle)

During the kick, keep the supporting leg steady, with the knee slightly bent. If the knee is bent too much in an effort to keep the hips low, the muscles of the leg will support the body with difficulty. The knee and ankle will be loose, and it will difficult to kick effectively. Bend the knee only slightly, lean the leg slightly forward, tense the muscles of the leg.
The ankle of the supporting leg must be strong and flexible to enables the hips to move smoothly and to absorb the shock of the kick. The ankle must also act to keep the sole of the foot firmly in contact with the ground.

6. Withdrawing the Kicking-Foot

After the point of impact, withdraw the kicking-foot quickly to the raised-knee position and take up the position for the next technique. The quick withdrawal prevents the opponent from catching or scooping it or from sweeping your supporting leg.



Note— KEAGE and KEKOMI

KEAGE (Snap Kick)

In the snap kick, after the knee is raised, the kneecap becomes the center of a semicircular movement. Use the spring-like power of the knee by snapping it fully.

KEKOMI (Thrust Kick)

In the thrust kick, after the knee is raised, the knee is forcefully straightened. It can hit a target located at knee height, at waist height, or higher. Lean the upper body as much as possible in the direction of the kick. If you lean away from the kick, you will lose your balance. At worst, you will be propelled away from the target at the moment of impact.


Methods of Kicking

1. USHIRO-ASHI-GERI: Kick with the rear leg.

2. MAE-ASHI-GERI or KIZAMI-GERI: Kick with the front leg.

3. REN-GERI (Alternate Kick): Kick alternately, i.e., with left and then right leg (kick two or more times), using the same or different techniques to the same or different targets/directions depending on the situations.

4. Consecutive Kick with the same leg: Kick consecutively with the same leg, using the same or different techniques to the same or different targets/directions by two ways:
(1) Drop the kicking foot to the floor after finishing each kick, and then continue to the next kicks.
(2) After finishing the first kick, without dropping the kicking foot to the floor, bend and extend the knee rapidly for the next kicks.

5. TOBI-GERI (Jump Kick): Jump and kick with the rear or front foot. It is also possible to jump and kick alternately, e.g., TOBI-NIDAN-GERI (two-level jump kick) in KANKUDAI, TOBI-MIKAZUKI-GERI and TOBI-USHIRO-GERI (jumping crescent kick and jumping spinning back kick) in KANKUSHO, and so on.

6. Body Dropping Kick: Kick by dropping your body diagonally forward, e.g., TAI-OTOSHI-MAWASHI-GERI (body dropping roundhouse kick) in UNSU or kick by dropping your body backward, e.g., KANI-BASAMI-GERI (scissor kick).

7. Kneeling Kick: Stand on a knee and spin your body to kick, e.g., TACHI-HIZA-USHIRO-URA-MAWASHI-GERI (one-knee stance, spinning back reverse roundhouse kick) or in squat position (SEIZA), kick to the front (Mae-Geri), side (YOKO-GERI), or back (Ushiro-Geri) while standing on the supporting knee.

8. Two-Foot Kick: Kick simultaneously with both feet which are grouping together or parallel (kick one opponent), or V form (kick two opponents) in sitting or jumping position; or one to the left and the other to the right in jumping position (kick two opponents at the same time).

Résumé Table— GERI-WAZA (Kicking Techniques)

Résumé Table— Unbalancing Foot Techniques

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