Biomechanics - Penguin waddling is not wasteful
Biomechanics - Penguin waddling is not wasteful
复制标题
DOI：
10.1038/35050167
复制
发表时间：
2000-12-21
期刊：
影响因子：
64.8
通讯作者：
Kram, R
中科院分区：
文献类型：
--
作者：
Griffin, TM;Kram, R
企鹅行走一定距离所消耗的代谢能量是其他类似质量的陆地动物的两倍，这被认为是因为左右摇摆需要过度的工作。在这里，我们表明，蹒跚而行实际上节省了机械能，而不是建议步行是昂贵的企鹅，因为他们的短腿需要他们迅速产生肌肉力量。
Penguins use twice as much metabolic energy as other terrestrial animals of a similar mass to walk a given distance,, which was thought to be because side-to-side waddling requires excessive work. Here we show that waddling actually conserves mechanical energy and suggest instead that walking is expensive for penguins because their short legs require them to generate muscular force rapidly.