Locomotor performance, survivorship, and related functional morphology of juvenile and adult Sylvilagus floridanus

Data are from a long-term study of musculoskeletal growth, locomotor performance, and survivorship in Eastern Cottontail Rabbits (Sylvilagus floridanus). Locomotor performance data include mean acceleration achieved over single half-bounding strides from a standing start, ground reaction force magnitudes for these strides, and peak COM power during these strides. Data were quantified using a combination of 3D video-based kinematics and force plate recordings. Survivorship data include peak acceleration per individual, age at capture, and age at death. EMA (effective mechanical advantage) data include measures effective mechanical advantage at the hip, knee and ankle joints during half-bounding strides (measured at the moment that the resultant ground reaction force reached its peak). Finally, fiber type data include counts of various slow and fast myosin heavy chain isoform fiber types in hindlimb extensor muscles in juvenile and adult rabbits.本数据集来源于针对东部棉尾兔（Sylvilagus floridanus）的肌肉骨骼发育、运动表现及存活状况的长期研究。运动表现数据涵盖：站立起步状态下单次半跳跃步幅的平均加速度、对应步幅的地面反力幅值，以及该步幅期间的身体重心（Center of Mass, COM）峰值功率。上述数据通过三维视频运动学分析与测力台记录相结合的方式完成量化。存活状况数据涵盖每只个体的峰值加速度、捕获年龄及死亡年龄。有效机械优势（Effective Mechanical Advantage, EMA）数据涵盖半跳跃步幅期间（取地面总反力达到峰值的时刻）髋关节、膝关节与踝关节的有效机械优势的测量值。最后，肌纤维类型数据涵盖幼兔与成兔后肢伸肌中各类慢肌与快肌肌球蛋白重链亚型的纤维计数。