Blows that hurt: where to give them, how to avoid them.For a quick knockout, aim at the temples, liver or chin. Fans of sapping work prefer to strive on the nose.

In a heavyweight championship, each fighter gives average twenty shots per round. Assisted full force by athletes of a quintal, they have terrible and sometimes fatal consequences. If they do not pull the decision of the KO each time, their power and their repetition wear the opponent.

The points of impact:

During hostilities, the upper body of a boxer is a set of targets for the opponent. The infographic opposite lists the main points of impact, with the consequences that they may entail.

The guards.

In comparison, the small silhouettes show the specific ways to protect themselves. While knowing that the fighters are, theoretically, constantly moving and boxing, the best defense is the attack. The most rigorous and impervious protection possible must be accompanied by a preparation of blows. In order not to suffer the fight.

KO at the liver.

The liver is a richly innervated region. But, unlike the brain zone, the neurovégé-tative impulse here is very slow: a 2CV, compared to the Ferrari of the brain. Unlike KO in the head, where the boxer is out, sometimes without hurting, the KO to the liver is only due to the pain. The shock wave radiates on the nerve plexuses of the liver regions. The pain goes up the nervous threads to the brain in two or three seconds. There, because of the pain, a stop of the abdominal muscle contraction occurs. The boxer bends and falls late (between three and five seconds) after receiving the shot. This is obviously a postural knockout.

KO in the face.

The hooks or uppercuts cause a sudden and violent rotation of the head. The brain, floating in the cranial box, follows the movement with delay and strikes the inner face of the skull. At this time, the balance centers (eye, inner ear and neuromuscular spindles of the neck muscles) are violently disrupted. They no longer transmit information to the nerve centers controlling muscle tone and coordination of movement. This is the postural KO.

In the case of a brain KO, the boxer loses consciousness briefly. There follows a great confusion: transient amnesia, disorientation in time and space. This often results in minor brain edema leading to headaches. The consequences are more serious (coma, death) if the shock causes the rupture of one of the veins in bridge.