Effect of Slope Degree on the Lateral Bending in Gekko geckos
Effect of Slope Degree on the Lateral Bending in Gekko geckos
复制标题
坡度对壁虎侧弯的影响
DOI：
10.1016/s1672-6529(14)60116-5
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发表时间：
2015-04-01
影响因子：
4
通讯作者：
Dai, Zhendong
中科院分区：
文献类型：
--
作者：
Wang, Zhouyi;Cai, Lei;Dai, Zhendong
壁虎的栖息地拥有广泛的攀爬斜坡，这给攀爬运动带来了许多姿势上的挑战。很少有研究探讨壁虎在攀爬时躯干的侧向弯曲和运动的其他方面之间的关系。本文利用壁虎在不同坡度上运动的三维反作用力和高速视频，揭示了动物躯干的侧向弯曲是如何对坡度变化做出反应的。这些观测结果表明，最小弯曲半径随着坡度的增加而不断减小，说明树干的弯曲程度明显变大。此外，侧弯力学模型被用来显示在额状面的侧弯和重力引起的躯干矢状变形之间的相互关系。综上所述，这些结果推进了我们对脊椎动物在斜坡上攀爬时侧弯作用的理解。
A gecko's habitat possesses a wide range of climbing slopes that pose a number of postural challenges for climbing locomotion. Few studies have examined the relationship between the lateral bending of the trunk of a gecko and other aspects of locomotion when climbing. In this paper, three-dimensional reaction forces and high-speed videos of Gekho geckos moving on different slopes are used to reveal how the lateral bending of the animal's trunk responds to changing slopes. The results of such observations indicate that the minimum bending radius continually decreases with an increase in the slope, illustrating that the degree of bending of the trunk becomes significantly greater. Moreover, a lateral bending mechanical model is used to show the interrelation between the lateral bending in the frontal plane and the sagittal deformation of the trunk caused by gravity. Taken together, these results have advanced our understanding of the role of lateral bending of vertebrates when climbing on a slope.