Success in Athletics and how to obtain it

THE POLE-JUMP 117 This diagram will point out the importance of a good turn of speed in the "run up," and a good strong spring into the air, for it will readily be followed that the longer the lines a b and a c, the greater will be the resultant a d, and consequently the greater will be its value on scale; the greater the force, and the easier the jump. Diagram r8 will show three of the principal move– ments in connection with the pole-jump; dealing with /P \ Yr , li a b c Diagram 18. them in order, and for the moment only taking into account those movements which take place in the air, we have first the swing up of the legs as in a. This swing, if properly and quickly executed, ought .to greatly help the velocity of the weight of the pole in its upward path; but care should ,be taken that they are swung in a clean line under the body, and kept as close together as possible until they reach the height of the highest part of the body, for any sprawl– ing mo'vement would tend to cause a lateral motion to the pole, which, it must be borne in mind, at this period still has a considerable portion . of its arc to complete.