The calf (pl.: calves; Latin: sura) is the back portion of the lower leg in human anatomy. The muscles within the calf correspond to the posterior compartment of the leg. The two largest muscles within this compartment are known together as the calf muscle and attach to the heel via the Achilles tendon. Several other, smaller muscles attach to the knee, the ankle, and via long tendons to the toes.
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👉 Calf (leg) 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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Calf (leg) in the context of Luge
A luge (/luːʒ/) is a small one- or two-person sled on which one sleds supine (face-up) and feet-first. A luger begins seated, propelling themselves initially from handles on either side of the start ramp, then steers by using the calf muscles to flex the sled's runners or by exerting opposite shoulder pressure to the pod. Racing sleds weigh 21–25 kg (46–55 lb) for singles and 25–30 kg (55–66 lb) for doubles. Luge is also the name of an Olympic sport that employs that sled and technique.
It is not to be confused with skeleton bob, which is also a single person tray-like sled in the bobsleigh family, and the name of the sport that uses that sled, but which is designed for a running start, steering by shoulders and feet, and to be laid on face down and head first. While skeleton and bobsleigh are part of one international federation and sport, luge is organised separately by the International Luge Federation (FIL).
Calf (leg) in the context of Sock
A sock is a piece of clothing worn on the feet and often covering the ankle or some part of the calf. Some types of shoes or boots are typically worn over socks. In ancient times, socks were made from leather or matted animal hair. Machine-knit socks were first produced in the late 16th century. Until the 1800s, both hand-made and machine-knit socks were manufactured, with the latter technique becoming more common in the 19th century, and continuing until the modern day.
One of the roles of socks is absorbing perspiration. The foot is among the heaviest producers of sweat in the body: it can produce over 0.25 US pints (0.12 L) of perspiration per day. Socks help to absorb this sweat and draw it to areas where air can evaporate the perspiration. They also protect shoes, a more expensive, durable, and frequently reworn foot covering, from perspiration, extending their life.