Athletics (British Sports Library)

146 ATHLETICS length. This line must not be touched or crossed until the javelin has struck the ground. The length of the throw is measured at right angles to the scratch line or the scratch line produced, and the point of the weapon must strike the ground before any part of the shaft. Each competitor has three throws, and the best three competitors are allowed three more throws. The length of the run-up is unlimited, but the athlete should so modify his speed that he is able to keep perfect control of all his movements and at the same time make full use of the strength of his body, legs, and throwing arm. The usual length of run is either just over or just under 20 yards. It is as necessary for the javelin thrower as for the jumpers to carefully plan, measure, and practise the run-up so that the steps fit in accurately from the start to the throwing-point. Formation of run-up is described in Chapter XV. · If the run is made at random the thrower will be bound at times to overstep the scratch line, and, also, will throw with lack of proper control. The run should be practised and practised until it is made with absolute mechanical precision. The ·speed should be built up gradually by practice. In competition the speed should increase progressively throughout the run, so that it reaches its maximum at the transition stage, when the throw is commenced