ABSTRACT

In human movement it is usually the effect of these changing forces applied over time with which we are concerned. It is these forces and their effects that will

measures). As we apply a force over the ground with our foot during the contact phase in running what will be the outcome of this application to our running speed? Does our speed increase or do the forces acting on our legs increase to a level that could develop a potential for injury? Similarly, in the athletic event of the shot putt how does the athlete apply enough force to project the 16 lb (7.27 kg) object through the air? Fig. B3.1 illustrates some other examples of this varying force application over time within human movement.