LYCOS RETRIEVER 
Running: Legs
built 282 days ago
The motions of the upper body are essential to maintaining balance and a forward motion for optimal running. They compensate for the motions of the lower body, keeping the body in rotational balance. A leg's recovery is matched by a forward drive of the opposite arm, and a leg's support and drive motions are balanced by backward movement of the opposite arm. The shoulders and torso are ... involved. Because the leg drive is slower than the kick of recovery, the arm thrusting backward is slower also. The forward arm drive is more forceful and rapid.
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# Long legs, which chimps and australopithecines lack, let humans to take huge strides when running, Bramble says. So do ligaments and tendons – including the long Achilles tendon – which act like springs that store and release mechanical energy during running. The tendons and ligaments ... mean human lower legs that are less muscular and lighter, requiring less energy to move them during running.
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Merrill Lynch & Co. acted as book running lead manager and Legg Mason Wood Walker, Incorporated and Raymond James acted as co-managers for the offering. A written prospectus may be obtained, at no cost, from Merrill Lynch, 4 World Financial Center, New York, NY 10080.
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That conclusion is contrary to the conventional theory that running simply was a byproduct of the human ability to walk. Bipedalism – the ability to walk upright on two legs – evolved in the ape-like Australopithecus at least 4.5 million years ago while they ... retained the ability to travel through the trees. Yet Homo with its "radically transformed body" did not evolve for another 3 million or more years – Homo habilis, Homo erectus and, finally, our species, Homo sapiens – so the ability to walk cannot explain anatomy of the modern human body, Bramble says.
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The system was supposed to be up and running by September 30, 1998, but Congress has already granted the INS a one-year extension. Chairman Abraham' s legislation, S.1360, seeks to eliminate Section 110 all together.
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