book aiki jujitsu 1.pdf

Stanford Self-Defense Class

Stanford University

Mat Work Notes

Aiki Jujitsu 1

Daniel Y. Abramovitch

8/11/91

Ground Techniques

In this posture, one shin is up, blocking opponent from coming in. The other leg will be used to

apply torque or some other technique to get opponent o.

Key Ideas:

1) The shin must be horizontal (Top View). The knee presses against opponent's hip bone.

If the knee is too high or too low, the defense will not hold.

2) Press with the knee, not the ankle. Pressing with the ankle will allow opponent to slide

down the leg and \capture" the head.

3) The objective is to use your hip muscles to stretch your opponent out so that you can

use their arm as a lever. As your opponent tries to come in, you can use their force on

your leg to help you slide away (Overhead View) with a serpentine motion.

4) The non-blocking leg is bent with the foot on the ground (Overhead/Top View) so that

you can use it to roll yourself over and your opponent o.

5) It is critical to use your hip muscles when you are on the ground. These are the strongest

muscles in your body. Keeping your leg up between you and them allows you to use

your hips to control their attack. \Everything on the ground is hips." { Rickson Gracie

Stanford Self-Defense Class

Stanford University

Mat Work Notes

Aiki Jujitsu 1

Daniel Y. Abramovitch

8/11/91

Against a choke or attempted headlock:

Opponent attempts a choke (a). Place your left hand

just above their right elbow and your right hand in a

parry position at their right wrist (b). Bringing your

left leg into a bent position, thrust horizontally with

your left hand { pulling horizontally with the back of

your right hand (c) { and roll your body to the right

(d). This will throw opponent o.

Note: You do not want to lift your opponent here. This

would be hard to do on an opponent who is larger and

stronger than you. Instead you want to roll like a log so

that they roll o of you.

If opponent gets beyond the rst defense line and at-

tempts a headlock (e), you can still escape by tucking

your head into the gap under their right arm pit and

thrusting with the left hand on the back of their right

elbow. Roll to your side as before, but hold onto their

elbow so that you can take them down (f).

Street techniques:

From postion (a), a palm heel to opponent's chin (left or

right hand) is fairly easy. Alternately, thrusting a claw

hand (called Gohon Nukite in Japanese) into opponent's

face (and specically eyes) is quite eective.

Also, you can break opponent's arm by changing the

parry (c) into a strike (g) & (h). On your opponent's

right arm, hold or strike at the wrist with your right

hand. Strike at their elbow with your left hand (palm

heel).

Also, from position (a), your opponent's ribs are com-

pletely vulnerable to a knee strike with your left knee

(i).

Stanford Self-Defense Class

Stanford University

Mat Work Notes

Aiki Jujitsu 1

Daniel Y. Abramovitch

8/11/91

Against a side choke: Arm thrust, hiji

As opponent gets more vertical on you their weight is

more on their hands (a). Thurst up with the left arm

beyond their head (above their left shoulder) (b1). This

will remove your opponent's base and they will drop to

your left side (b2). Follow this with an left elbow strike

to the back of their neck (c).

Street technique:

On the arm thrust (b1) do not simply thrust over their

left shoulder { go through their face with a palm heel or

an elbow.

Against a side choke: Leg over, juji gatame

Opponent is even more vertical than in (a). Swing your

left leg up and take opponent down with your leg across

their neck/head (d). Note that you have to go onto your

right side to make this work. Also, there is more power

if you keep your leg straight, so that you can use your

hip muscles to move them. Keep opponent's right hand

pinned to you with both of your hands. (This technique

is designed to catch their neck at the back of your knee.

For thrusting this is more powerful. Of course, a heel

kick to opponent's temple is also an eective street vari-

ation.)

After you take opponent down, roll opponent onto their

left side with your left leg over their neck and your right

leg bent behind their back. Sit back, doing the arm bar

(called Juji Gatame in Japanese) on their right arm.

Their arm is against the inside of your right thigh (e).

Stanford Self-Defense Class

Stanford University

Mat Work Notes

Aiki Jujitsu 1

Daniel Y. Abramovitch

8/11/91

Against a right & left: hammerlock.

Opponent is punching at your head (right &

left roundhouse punches) (a) & (b). Block

these at their wrists, grabbing opponent's left

wrist with your right hand (c).

At the same time, execute a left arm thrust

fall o balance and dropping their head be-

low their hips.

Shoot your left arm down around your op-

ponent's upper arm (d). This will help your

right hand bend their arm into a hammer

lock (e).

As you are applying the hammerlock (e),

reach down with your left hand for a piece of

your uniform (if you are wearing one) while

torquing opponent's hand up their back.

Finally, scoot your hips out to your right.

This gives you much more leverage to work

the arm when applying the hammerlock.

Street techniques:

To really make this hurt and severely in-

jure the shoulder, raise the arm o the back

(much like you would rip out a turkey wing).

Do not do this in class. Do not do this unless

you are ghting for your life.

Stanford Self-Defense Class

Stanford University

Mat Work Notes

Aiki Jujitsu 1

Daniel Y. Abramovitch

8/11/91

When straddled: Stomach bump

In this situation, your defenses are really com-

promised (a). Opponent is straddling your

hips/stomach/chest, so there is no chance to as-

sume the basic defensive posture show on pages

1{4 of these notes.

The moves are essentially the same whether

your hands are pinned (b) or free (c). The key

steps are:

Slide your legs into a bent knee position

(a){(c) so that you can thrust.

If your hands are pinned (b) hook them

under opponent's thighs, sliding them for-

ward onto your upper arms (b1) which are

stronger than your lower arms.

If your hands are free, hook them over op-

ponent's thighs.

With a sharp motion and a kiai (deep

expulsion of breath from the diaphragm)

thrust upward with your hips while shov-

ing (b) or yanking (c) opponent's thighs

with your hands. Opponent will ﬂy o of

you (d).

Thrust up and back rolling onto one of your shoulders to minimize the chance of opponent

landing on your face and to maximize the use of your hips.

The kiai puts focus in your thrust by tightening all your muscles at once.

Du Howell describes this in terms of your opponent being a very heavy lamp on a very tall

thin table. It may be dicult to lift the lamp o of the table, but it is not too dicult to tilt

the table and send the lamp ﬂying. This is what stomach bump does.

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