Athletes in Action

1 93 H P, TEP D JUi\1P. TR.\ ITIO FR M T ~P TO JUMP (ro) TnE middle stage of the transition from the t p, f llowing upon the tep-landing, to the commence- ment f the Jump i seen in Fig. 10 oppo ite . Perhaps the fir t point that hould b noted i that the athlete ha not allowed hi rear heel to fly up · and therefore, from a hin-parallel-to-track po ition, is well placed to bring the left (rear) leg through for a pow rful knee pick-up in the Jump-take-off. The low carriage of the arm , the slight er uch with right knee flexion, to engender power for the ne. t spring the full f rward body-lean and the full and straight-ahead foot-placing f the right foot, from which the Jump will b mad , arc all noteworthy f atur of the tran iti n stage of the evoluti n. ray, of course, ha landed from the tcp n the heel f his right f t and i een just bringing hi weight 1orward from th heel to th ball of that fo t in a full ankling, foot-r 11 action. The low r carriage f the arms indicates that th y ·will be us d an in tant later, to help lift the b dy up into the air n a 45 degr s take-off angle. t the moment the wh 1 body is pa in moothly but peedily fon ard v r the ful- rum f the gr undcd foot. I t that the right ankl is allowed t b c m ' fully flexed, and that the weight of the b dy pa beyond it f rward point of balance before any attempt is made to "tend the foot and grounded leg at th knee in the take-off for the Jump.