Pronation in the context of "Jab"

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👉 Pronation in the context of Jab

A jab is a type of punch used in martial arts. Several variations of the jab exist, but every jab shares these characteristics: while in a fighting stance, the lead fist is thrown straight ahead and the arm is fully extended from the side of the torso. This process also involves a quick turn of the torso. It is an overhand punch; at the moment of impact, the pronated fist is generally held in a horizontal orientation with the palm facing the ground. This is also called a "front punch."

Jabs are usually aimed at the face or function as a feint, to lead to a second punch. Dynamic muscles involved in the jab include deltoids, triceps, pectorals, and the serratus anterior in the extension of the arm, and quadriceps and calves in the body drive.

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Pronation in the context of Radius (bone)

The radius or radial bone (pl.: radii or radiuses) is one of the two large bones of the forearm, the other being the ulna. It extends from the lateral side of the elbow to the thumb side of the wrist and runs parallel to the ulna. The ulna is longer than the radius, but the radius is thicker. The radius is a long bone, prism-shaped and slightly curved longitudinally.

The radius is part of three joints: the elbow and the wrist, both of which are synovial joints; and the radioulnar joint, which is a syndesmosis. At the elbow, it joins with the capitulum of the humerus, and in a separate region, with the ulna at the radial notch. At the wrist, the radius forms a joint with the ulna bone. The radioulnar joint allows for supination and pronation of the forearm.

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