Aerodynamic drag in field cycling with special reference to the Obree's position

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      <subfield code="a">Aerodynamic drag in field cycling with special reference to the Obree's position</subfield>
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      <subfield code="a">In cycling at race speeds, 90% of  total resistance opposing motion, depends on aerodynamic drag of air, which is directly proportional to the effective frontal area. The total resistance opposing motion was measured on a cyclist, in an open velodrome, in order to evaluate the effective frontal area in four different positions on a traditional bicycle: upright position, dropped position, aero position and Obree's position</subfield>
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      <subfield code="g">Vol. 40, nº 12,  December 1997 ; p. 1299-1311</subfield>
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