2010-07-03 - Swaintoux!

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However, since air resistance is negligible at slow climbing speeds, all cyclists are at a similar energy cost, relative to their body weight. Small cyclists excel at hill climbing because they generally have greater relative aerobic power (VO[SIZE=-2]2[/SIZE]max in ml·min[SIZE=-2]-1[/SIZE]·kg[SIZE=-2]-1 [/SIZE]) than do large cyclists. This is also a consequence of scaling geometry: relative to body mass, smaller organisms have greater alveolar and capillary surface areas in the lungs, greater capillary surface areas in the muscles, and greater cross-sectional area of arteries for the delivery of blood.

Interesting.