Motions of the running cheetah and horse
Motions of the running cheetah and horse
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DOI：
10.2307/1376265
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发表时间：
1959-01-01
期刊：
影响因子：
--
通讯作者：
HILDEBRAND, MILTON U.
中科院分区：
文献类型：
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作者：
HILDEBRAND, MILTON U.
体型和耐力的不同要求猎豹和马在奔跑时使用不同的身体。慢动作电影序列从沃尔特迪士尼生产（猎豹）和美国马协会。被用来分析和对比这些差异。速度和耐力记录。脚步的间隔和顺序与腿部动作有关。前腿的支持作用进行了描述，更大的设施与猎豹的变化导致的解释。身体运动和形态学对速度的适应与体重相关。呈现步幅的阶段，以便示出每个阶段的持续时间，并且脚的运动与竖直平面中的肩部和臀部的运动以及身体的屈曲和伸展都相关。猎豹通过脊椎的测量蠕虫动作显著地增加了它的速度。列举了影响步幅长度和步幅率的因素，并描述了柔韧的脊柱有利于速度的方式。|| 摘要作者：M.希尔德布兰德
Differences in body size and stamina require that the cheetah and horse use their bodies differently when running. Slow-motion moving picture sequences from Walt Disney Productions (cheetah) and the Horse Assoc. of Amer. were used to analyze and contrast these differences. Speed and endurance records are presented. Spacing and sequence of footfalls are related to leg action. The support role of the forelegs is described, and the greater facility with which the cheetah changes lead is explained. Body motions and morphological adaptations for speed are correlated with body weight. Phases of the stride are presented so that the duration of each phase is shown, and motions of the feet are correlated both with motions of the shoulders and hips in the vertical plane and with flexion and extension of the body. The cheetah adds significantly to its speed by a measuring-worm action of the spine. Factors contributing to length and rate of stride are enumerated, and the ways that a supple spine benefits speed are described. || ABSTRACT AUTHORS: M. Hildebrand