International Society of Biomechanics in Sports (ISBS)
Abstract
Soccer is played extensively throughout the world. As the
popularity of soccer increases in America, a development of the
teaching and coaching techniques is needed. Despite the
increasing amount of soccer literature, the soccer throw-in skill
has been understated. Up to date, only a few studies have
assessed the throw-in biomechanically (Lueft, 1965; Kline, 1980;
Levendusky, 1982) and have provided some descriptive data
concerning kinematics and kinetics. The throw-in is a unique
throwing motion in that both hands must be used, the ball must
come from behind the head forward, and both feet must maintain
contact with the ground until release as stipulated by the laws of
the game (FIFA, 1977). As a result, the coordination of the upper
body movements and the supporting lower body enable a player to
throw for longer distances