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Lower Limb Biomechanical Analysis of Healthy Participants
Published on: April 15, 2020
下肢和步行机制在澳大利亚白座 (Australopithecus sediba) 中
Jeremy M DeSilva1, Kenneth G Holt, Steven E Churchill
1Department of Anthropology, Boston University, Boston, MA 02215, USA. jdesilva@bu.edu
Science (New York, N.Y.)
|April 13, 2013
概括
在双脚行走时,奥斯特拉洛皮塞克斯·塞迪巴 (Australopithecus sediba) 使用完全伸展的腿和倒置的脚走路. 这种独特的步态涉及显著的脚,不同于其他澳大利亚龙,并暗示了多样化的Plio-Pleistocene双脚.
科学领域:
- 古人类学古人类学.
- 人类进化人类进化
- 生物力学 生物力学
背景情况:
- 发现一个几乎完整的Australopithecus sediba成年雌性骨为详细的运动分析提供了独特的机会.
- 了解早期人类的步态对于重建人类进化途径至关重要.
研究的目的:
- 为了描述奥斯特拉洛皮塞克斯 (Australopithecus sediba) 的下肢解剖学.
- 假设和分析澳大利亚野兽 (Australopithecus sediba) 的双脚行走机制.
主要方法:
- 详细分析了奥斯特拉洛皮塞克斯·塞迪巴 (Australopithecus sediba) 的下肢骨质.
- 整合关节系统以建模步态动力学.
- 在双脚行走的摇摆和姿势阶段假设脚和腿的位置.
主要成果:
- 在双脚行走时,澳大利亚白座 (Australopithecus sediba) 可能会表现出完全伸展的腿.
- 在摇摆阶段,脚很可能是倒置的.
- 最初的侧脚接触导致在重量转移到脚 (晚期) 期间显著的前扭矩和超前.
结论:
- 奥斯特拉罗皮特 (Australopithecus sediba) 的双脚机械与其他奥斯特拉罗皮特重建的不同.
- 这表明在Plio-Pleistocene时代,双脚运动策略的潜在多样性.
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