Supination is a position of either the forearm or foot. When the arms are unbent and at the sides, the forearm is in supination when the palm faces to the front (anteriorly), or faces up. Supination in the foot occurs when a person appears "bow-legged" with their weight supported primarily on the anterior of their feet.^{[citation needed]}

The hand is supine in the anatomical position (i.e., palms facing up during autopsy). This action is performed by the Biceps brachii and the Supinator muscle.

Supination is the opposite of pronation.

Originally, supination of the forearm was attributed as a function of the brachioradialis muscle. However, the original idea of the biceps acting as a supinator was something hypothesised by Leonardo da Vinci, in a series of annotated drawings made between 1505 and 1510 (referred to as his Milanese period); in which the principle of the biceps as a supinator, as well as its role as a flexor to the elbow was devised. However, this function remained undiscovered by the medical community as da Vinci was not regarded as a teacher of anatomy, nor were his results publicly released.

William Ben Hogan (August 13, 1912 – July 25, 1997) was an American professional golfer, generally considered one of the greatest players in the history of the game. Born within six months of two other acknowledged golf greats of the twentieth century, Sam Snead and Byron Nelson, Hogan is notable for his profound influence on the golf swing theory and his legendary ball-striking ability, for which he remains renowned among players and fans.

His nine career professional major championships tie him (with Gary Player) for fourth all-time, trailing only Jack Nicklaus (18), Tiger Woods (14) and Walter Hagen (11). Furthermore, he is one of only five golfers to have won all four major championships currently open to professionals (the Masters Tournament, the British Open, the U.S. Open, and the PGA Championship), the other four being Gene Sarazen, Gary Player, Jack Nicklaus and Tiger Woods.

Born in Stephenville, Texas, he was the third and youngest child of Chester and Clara (Williams) Hogan. His father was a blacksmith and the family lived ten miles southwest in Dublin until 1921, when they moved 70 miles (112 km) northeast to Fort Worth. In 1922, when Hogan was nine, his father Chester committed suicide at the family home via a self-inflicted gunshot to the chest. By some accounts Chester committed suicide in front of him, which some (including Hogan biographer James Dodson) have cited as the cause of his introverted personality in later years.