Uppercut, the shot that comes from below, assembling, or perhaps I should say that disassembles the opponent.
It is one of the most devastating blows which aims at the opponent's Chin.
Try to ask Frazier, non Smoking Joe, but his son Marvis KO'd by two right uppercuts from a certain Mike Tyson.

So, just to remind you, or to those who had not ever seen we reproduce below the movie. Watch it and then read on:

The impact is absolutely devastating, Iron Mike was definitely the best interpreter of this blow to its physical conformation and his explosiveness.

But back to stroke: the upright part of the circular strokes (like the gancio) from the biomechanical point of view this is a punch made from bottom to top with a 90° angle between the forearm and arm. Its power is linked to the acceleration that reaches the shot right in her upward motion to impress the head during impact high torque-stretching.

From the dynamic point of view, the preparation phase follows the same stroke of the hook, it is therefore perform a slight twist of the torso in a counterclockwise direction (imagine being a spring twists on itself) and bring your hand down.

Not this way

 

otherwise you risk being too predictable and

Once loaded and ready to explode with the thrust of the legs start stroke along with the hourly buy basin twist a high acceleration that will rein in the poor opponent's Chin.

Been careful to distance and starting from a tight stance which then summarize in a short time.

Advice when use it? I tell you my favorite action … Opponent faced, shy his left jab with a torsional buckling, bashful on straight right. semispostamento left and left uppercut to the body BAAAM voiced with an uppercut to the face.

That's right!! Mike Tyson!