Stride length and its determinants in humans, early hominids, primates, and mammals.
Stride length and its determinants in humans, early hominids, primates, and mammals.
复制标题
人类、早期原始人类、灵长类动物和哺乳动物的步长及其决定因素。
DOI：
10.1002/ajpa.1330720113
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发表时间：
1987
影响因子：
2.8
通讯作者：
T. Reynolds
中科院分区：
文献类型：
--
作者：
T. Reynolds
与非灵长类四足哺乳动物相比，灵长类四足动物在快步/奔驰转换的速度下，四足动物的步长非常长。这些特别的长度是灵长类动物相对较长的四肢以及在四足动物时四肢的大角度漂移的结果。当四足灵长类使用两足步态时，它们的角度漂移要小得多。因此，与其他哺乳动物相比，它们的两足步幅似乎并不特别长。现代人下肢的角度漂移并不是特别大。然而，与包括灵长类在内的其他哺乳动物相比，人类在跑步时表现出相对较长的飞行周期(即，它们的负荷率较低)。由于这些长时间的飞行和相对较长的下肢，人类的奔跑步长处于四足灵长类动物步长范围的低端。Laetoli原始人踪迹的步长就是在这种情况下评估的。
Primate stride lengths during quadrupedal locomotion are very long when compared to those of nonprimate quadrupedal mammals at the speed of trot/gallop transition. These exceptional lengths are a consequence of the relatively long limbs of primates and the large angular excursions of their limbs during quadrupedalism. When quadrupedal primates employ bipedal gaits they exhibit much lower angular excursions. Consequently their bipedal stride lengths do not appear to be exceptional in length when compared to other mammals. Angular excursions of the lower limbs of modern humans are not exceptionally large. However, when running, humans exhibit relatively long periods of flight (i.e., they have low duty factors) when compared to other mammals including primates. Because of these long periods of flight and their relative long lower limbs, humans have running stride lengths that are at the lower end of the range of stride lengths of quadrupedal primates. The stride length of the Laetoli hominid trails are evaluated in this context.