Athletes in Action

53 DI T E RU HE powerful leg-drive, which characterises the c mmencement f a stride, i well portray d in Fig. 2 n the page opposite. It will b seen that the thrust omes right thr ugh fr m th very tip f the t e of the grounded fo t, that the rear leg is fully traightencd in thi thru t and that there is a good but by no means extravagant, pick-up f the 1 ading knee with the foot of the 1 ading 1 g k pt well back in rear of that kne . In ther words, the knee 1 ad in running middl distanc just a the sh ulder l ad in the thr wing vent . urmi has his yes pr p rly dir et d t a p t on the track ab ut ro r 1 2 yd . ahead f him, b cause th pr per etting f the h ad u ually nsure the c rr t carriage f the b dy. otic that hi h ad retain a p rfectly n rmal p siti n in r lati n to hi pine and that the he t i well raised t aff rd full fa ility for de p br athing and the ons qu nt b nefi ial xygenation f the bl od. nother p int to ob erYe thr ugh ut th e pictures, i that urmi runs with hi hips all th while held quar to the dire ti n in whi h he i running. 'he arm ar arri d almost h rizontal and, a in printing, th hand ar at n tage of th stride all wed to pa to the rear f the line f the hips · in ther word , the arm-acti n aid in the propul ·i n of the body again a in ·printing, and the arm ar n tu ed m r ly as balan 'rs a i the a when th hands arc all \ d t fall bd w th le 1 of, and t pa s behind the hips in an e.·agg rat d ba h ard and f rward swing. p cial not should be made f the way in whi h the arm- and le -action orr sp nd, and that there is an . actly similar r lati n betwc n th fl xi n and for .·t n i n of th hand and feet up n the wri t and ankl .