期刊
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
卷 150, 期 2, 页码 144-150出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cbpa.2006.09.026
关键词
exercise; cost of running; oxygen consumption; biped; quadruped
Rates of oxygen consumption were measured for two bipedal runners (two species of quail) and two quadrupedal runners (two small species of rodents), with average body masses that ranged from 0.035 to 0.217 kg, trained to run on a treadmill set to horizontal and then to a 10 degrees incline. Rates of oxygen consumption increased linearly with speed for all four species and the rates of increase were significantly higher (P <= 0.05) for all four species when the animals were run on an incline than when they were run on a horizontal. The estimated metabolic energy cost to lift 1 kg mass 1 in vertically was similar for bipeds and quadrupeds of similar body mass and inversely related to body mass for both running styles. When the data for the animals used in the present study are combined with similar data for adult animals from the literature, the results show that the metabolic energy efficiencies of locomotion, estimated from the cost of vertical work, are the same for bipedal and quadrupedal runners. In both groups, the metabolic energy efficiency of locomotion is directly related to body mass for animals smaller than 1 kg body mass. (C) 2006 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据