Why? The Science of Athletics

SOME MATHEMATICS IN ATHLETICS 271 balance that his centre of gravity may continue to follow the true path of its parabolic curve. Whether the Ameri– can hitch-kick or the German and Scandinavian "hang" is used makes little matter, since both styles enable the jumper to keep his back straight and his body upright until he deliberately whips his trunk forward to accelerate the very last stage of his landing. Perhaps the best method of all is that use~ by the Japanese and shown in Fig. 94, which was drawn for me by Chuhei Nambu, who held the world's record of 26ft. 2 I/8 ins., broken in I935 by the American negro Jesse Owens, jumping 26ft. 8 r/4 ins.