Key to speed? Elite sprinters are unlike other athletes — deliver forceful punch to ground

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Key to speed? Elite sprinters are unlike other athletes — deliver forceful punch to ground

Usain Bolt, elite sprinters, Weyand, punch, SMUThe world’s fastest sprinters have unique gait features that account for their ability to achieve fast speeds, according to two new studies from Southern Methodist University, Dallas. The new findings indicate that the secret to elite sprinting speeds lies in the distinct limb dynamics sprinters use to elevate ground forces upon foot-ground impact.

National Geographic: Louis Jacobs, vertebrate paleontologist

National Geographic's has launched its new Explorers web site, which includes SMU paleontologist Louis L. Jacobs. The Explorers site acknowledges the work of the world's scientists whose research is made possible in part through funding from National Geographic.