Kuzurekamishiho-Gatame: Another Modification

This technique has been devised to make the arm of moment longer than that of the other kami-shiho-gatame techniques as well as to make it easy for you to apply momentum to your opponent. You hold your opponent by the neck under your left arm, and your hands grasp the left side of his belt, as shown in Figure 1116. Spread your legs as wide as possible to make your posture stable, so that it will be easy to apply momentum. Make both your big toes stand on end. Then grasp the right side of his belt or trousers with your right hand and press down on his chest. With your chest, put pressure upon his chest tightly by pulling your left elbow.

DYNAMIC EXPLANATION : There are two forces that act on your op¬ponent. The first is the force F, which is produced by the momentum generated when you push your chest against him as he tries to roll his body to either side by pushing up your chest with both his arms. Suppose he tries to make you turn over to the left by using his shoulder 0 as a fulcrum. Your gravity makes a moment about the fulcrum 0, thus creating the second force.

This is the moment GL, which is too strong for him to resist. Therefore he is unable to make you turn over to the left. If he uses his right arm in an effort to make you turn over, you must pin it to the mat with your abdominal force.

KEY POINTS : a. Hold your opponent tightly by the neck under your left armpit by putting pressure on his chest with your chest. b. Stand the big toes of both your feet on end for power and
balance.

8. Yokoshihogatame (side four-quarter hold)

You turn your opponent on his back and hold him down from the side in a right-angled position as shown in Figure 112a. You grasp his left lapel with your left hand after sliding it under his neck and around to the lapel. Then put pressure on his chest with your chest and grasp the back part of his trousers with your right hand after reaching between his legs. Extend your left leg with the big toe standing on end. Place your right knee close to the right side of your opponent's waist in order to deprive him of the force of his waist and abdominal region.

DYNAMIC EXPLANATION: There are two forces that act on your opponent. The first is the force F produced by the momentum with which your chest puts pressure on his arms and chest. Look at Figure 1126. In order to make all parts of his body work together, your opponent will try to roll to either side by pushing you up with both his hands and his left leg cooperating, as shown in the figure.

Never¬theless, he cannot succeed in this, once the force F works against them to press them down. If he tries to turn you over to the left by using his left shoulder as a fulcrum and pushing up your abdomen with his right hand, your gravity creates the moment GL about the fulcrum O to overcome his turning force. In this case, however, you should press your abdomen against his right arm on the mat.

KEY POINTS : a. In order that your waist and abdominal region may function to the maximum, it is necessary that you stand both your big toes on end, thus stabilizing the balance and power of your body. b. Press your right knee against your opponent's right side to prevent him from using the forces of his lower extremities. c. Remember to press his right arm down with your abdomen whenever he tries to push you up with the arm.