Gait and Kinematics of Arboreal Quadrupedal Walking of Free-ranging Red Howlers (Alouatta seniculus) in French Guiana
Gait and Kinematics of Arboreal Quadrupedal Walking of Free-ranging Red Howlers (Alouatta seniculus) in French Guiana
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法属圭亚那自由放养的红吼鸟 (Alouatta seniculus) 树栖四足行走的步态和运动学
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发表时间：
2011
期刊：
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通讯作者：
J. Gasc
中科院分区：
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作者：
D. Youlatos;J. Gasc
灵长类动物运动多样性的适应意义的理解需要在自然条件下的研究，结合联合收割机的使用频率和生物力学分析。在这里，我们报告四肢运动学和步态参数的树四足步行的成年自由放养的红吼猴（Alouatta seniculus）。这些数据来自对法属圭亚那原始雨林拍摄的原始视频记录的分析。对角序列对角对步行占主导地位，平均速度为0.67 ± 0.26 m/s。两个肢体的站立时间相等。在前肢摆动阶段，手臂外展、前伸和肘部伸展是主要的动作。在站立阶段，手臂外展和内收、肘关节渐进性伸展和前臂旋前占主导地位。在摆动阶段的后肢，髋关节屈曲，大腿外展，膝关节伸展占主导地位。髋关节伸展、大腿外展和膝关节伸展是站立阶段的主要动作。这些发现似乎支持初步的实验室观察，提供了生物力学协会的背景，并强调了灵长类动物辐射内的形态功能复合物的进化和适应的重要性。
The understanding of the adaptive significance of primate locomotor diversity requires studies under naturalistic conditions that combine frequency of use and biomechanical analyses. Here, we report on limb kinematics and gait parameters of the arboreal quadrupedal walk of adult free-ranging red howlers (Alouatta seniculus). The data derive from the analysis of original video recordings shot in a primary rain forest in French Guiana. Diagonal-sequence diagonal-couplets walks largely dominated, with mean speeds of 0.67 ± 0.26 m/s. Stance duration was equal for both limbs. During the forelimb swing phase, arm abduction and protraction and elbow extension were the principal movements. Arm abduction and retraction, progressive elbow extension, and forearm pronation dominated during the stance phase. During the swing phase of the hind limb, hip flexion, thigh abduction, and knee extension dominated. Hip extension, thigh abduction, and knee extension were the main movements during the stance phase. These findings appear to support preliminary laboratory observations, provide a background for biomechanical associations, and underline the evolutionary and adaptive importance of morpho-functional complexes within the primate radiation.