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首页> 外文期刊>Journal of Biomechanics >Size and power required for motion with implication for the evolution of early hominids.
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Size and power required for motion with implication for the evolution of early hominids.

机译：运动所需的大小和力量，与早期人类的进化有关。

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The fossil record of early hominids (early human ancestors) suggests that their stature and weight had a tendency to increase, but their robusticity (the proportion of radius to length) to decrease. Using a simple musculo-skeletal model, this paper explores possible relationships between size, power required for motion (PRM) and cycle-time, deriving relationships which indicate that PRM per unit of mass and velocity is proportional to robusticity, but inversely proportional to stature. The results derived appear to be in general agreement with published data from physiological experiments. If the material properties of early hominids were similar to those of modern humans and the achievement of minimum PRM was the selective criterion, human stature might tend to increase slightly in human evolution (and, if selective pressures are not removed, might do so in the future but at lower rate). If mobility and stability under loading are the selective criteria, however, human size should not substantially increase in the future.
机译：早期人类（早期祖先）的化石记录表明，它们的身材和体重有增加的趋势，但其健壮性（半径与长度的比例）却有所下降。使用简单的肌肉骨骼模型，本文探讨了尺寸，运动所需的功率（PRM）和周期时间之间的可能关系，推导关系表明每质量和速度的PRM与坚固性成正比，但与身高成反比。得出的结果似乎与生理实验的公开数据基本一致。如果早期原始人的物质特性与现代人类相似，并且达到最低PRM是选择标准，那么人类身高可能会在人类进化中略有增加（并且，如果不消除选择压力，则可能在人类进化中如此）。未来，但利率较低）。但是，如果将负载下的机动性和稳定性作为选择标准，则未来的人员规模不应大幅增加。

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