In conflicts, priority is given to avoiding physical conflicts and ensuring one's own safety through communication or evacuation. If you need to quickly break the opponent's balance under the legal premise of self-defense, the following are some technical principles based on human mechanics, but please remember: **Any technical use must comply with the boundaries of legal self-defense, and do not actively attack others. ** . --- ###**Basic principles** 1. **Destroy the center of gravity**: The balance of the human body depends on the center of gravity (usually near the abdomen), and its center of gravity deviates from the support surface (both feet) by pushing, pulling, or rotating. 2. **Using the principle of leverage**: By controlling joints (such as wrists, elbows) or torso, force is exerted with small movements. 3. **Predict movements**: Observe the trend of the opponent's movements (such as leaning forward when punching), and use force to disrupt the balance. --- ###**Examples of practical skills (professional training required)** ####1. Manual control 1. **Push-pull combination** -When the opponent rushes forward, quickly push his clavicle or shoulder with one hand, and pull the opponent's wrist on the same side with the other hand at the same time to form a reverse force. -**Note**: Keep your center of gravity low as you move with your footsteps. 2. **Wrist lock + pull down** -Grab the opponent's wrist and twist slightly in the direction of the opposite joint, pulling down and behind at the same time, forcing his center of gravity to lean forward. #### 2. Leg method and lower plate destruction 1. **Low sweep leg (tibia/knee side)** -Quickly sweep the outside of the opponent's knee joint with the instep or calf (avoid directly kicking the front of the knee, which can easily cause serious injury). -**Principle**: Destroy the support of one leg, suitable for when the opponent's center of gravity is biased to one side. 2. **Hook kick ankle** -Hook the opponent's ankle with the inside of the foot to match the reverse force of the hand pushing the upper body (similar to Judo's "foot sweep" technique). ####3. Body impact 1. **Shoulder hits chest** -Stay sideways close to your opponent, hit the bottom of his chest (near the diaphragm) with your shoulders, and control his arms with both hands at the same time. -**Timing**: The moment the opponent makes a punch, the opponent stops. 2. **Hip Toss (Hip Toss)** -Stick your back to your opponent, use your hips to bump against his hips, pull down his arms with both hands, and use a lever to pull him out of his shoulders. ####4. Environmental utilization -**Guide to crash into obstacles**: By pushing and pulling sideways, the opponent will crash into walls, railings, etc., but pay attention to possible legal responsibilities. --- ###**Key precautions** 1. **Legal risks**: Excessive use of force may lead to improper defense, give priority to evacuation and call the police. 2. **Self-safety**: Untrained people may be controlled if they try blindly. It is recommended to learn systematically through martial arts (such as Brazilian jiu-jitsu and Aikido). 3. **Psychological deterrence**: Through calm posture, firm eyes and verbal warnings, the conflict may be terminated early. --- **Finally emphasize**: The real "skill” is to avoid falling into danger. Learning conflict resolution, situational awareness, and escape strategies is far more effective than physical confrontation.