BIOMECHANICAL STUDY OF THE TRANSmON TECHNIQUE OF EXCELLENT MALE SHOT-PUTTERS

Abstract

All sports events have undergone many innovations during the 100 years development of Olympic Games. In particular track and field events, ,in which skill development is much more obvious, have been characterized by rapid improvements in human performance. Within the field events, the shot put is a complex event that has prompted many skill innovations from throwing in place to side sliding shot putting, to back sliding throwing, and to rotational shot putting. The outcomes of all these innovations seem to add to the duration of the acceleration phase, which then increase the velocity of release. Because shot put belongs to "cast events", According to trajectory principles, its descriptive mechanical formula is S = v02Sin2a/g with S being affected by the velocity of release. So the key to improving performance in the shot put is to increase its velocity of release. Building of the velocity of the shot begins at the slide stage, and then it passes to the transition stage to transform the velocity into motion of the shot put at release. So skill in the transition phase is very important during throwing the shot put. How to minimize the loss of velocity during the throw is the aim of the present study with a particular emphasis on the transition skill.