Abstract：
Joint range of motion (RoM) analyses are fundamental to our understanding of how an animal moves throughout its ecosystem. Recent technological advances allow for more detailed quantification of this RoM (e.g. including interaction of degrees of freedom) both in ex vivo joints and in vivo experiments. Both types of data have been used to draw comparisons with fossils to reconstruct locomotion. Salamanders are often used as analogues for early tetrapod locomotion; testing such hypotheses requires an in-depth analysis of salamander joint RoM. Here, we provide a detailed dataset of the ex vivo ligamentous rotational joint RoM in the hindlimb of the fire salamander Salamandra salamandra, using a new method for collecting and visualising joint RoM. We also characterise in vivo joint RoM used during walking, via scientific rotoscoping and compare the in vivo and ex vivo data. In summary, we provide (1) a new method for joint RoM data experiments and (2) a detailed analysis of both in vivo and ex vivo data of salamander hindlimbs, which can be used for comparative studies.
摘要：
联合运动范围（RoM）分析对于我们了解动物在整个生态系统中的运动方式至关重要。最近的技术进步允许在离体关节和体内实验中更详细地定量该RoM(例如,包括自由度的相互作用)。这两种类型的数据都被用来与化石进行比较，以重建运动。Salamanders通常用作早期四足动物运动的类似物；测试此类假设需要对sal关节RoM进行深入分析。这里,我们提供了火sal后肢的离体韧带旋转关节RoM的详细数据集，使用一种新的方法来收集和可视化关节RoM。我们还描述了在行走过程中使用的体内关节RoM，通过科学的rotoscoping和比较体内和离体数据。总之,我们提供了（1）一种用于关节RoM数据实验的新方法，以及（2）对sal后肢的体内和离体数据的详细分析，可用于比较研究。
