... efficiency, at least at slow speeds and high loads. In conclusion, Nepalese porters accomplish their impressive load carrying without any apparent mechanically determined tricks. Hauling loads roughly equivalent to body mass up 8000 m and down 6300 m in about a week is, by Western standards...

... fowl Numida meleagris locomotion backpack loading blood flow oxygen consumption energy use load carrying Surprisingly little direct information is available on the mechanical function of the diverse array of muscles active during running, and on the division of energy use among...

... Biodynamics Department, 103 Harmon, University of California, Berkeley, CA 94720-4480, USA (e-mail: [email protected] ). 19 10 1995 ©The Company of Biologists Limited 1996 locomotion energetics biomechanics load carrying rhinoceros beetle Xylorctes thestalus When...

... should decrease with increasing bird size, because the power required to fly increases more rapidly with body size than does the power available from the flight muscles. bird flight climbing performance flight power fuel load load carrying muscle work © 1992 by Company of Biologists...