Vereecke Evie, D'Août Kristiaan, De Clercq Dirk, Van Elsacker Linda, Aerts Peter
Laboratory for Functional Morphology, University of Antwerp,Wilrijk-Antwerp, Belgium.
Folia Primatol (Basel). 2004 Jul-Aug;75(4):266-78. doi: 10.1159/000078938.
The aim of this paper is twofold. Firstly, we investigate whether contact times, as recorded by pedobarographic systems during quadrupedal and bipedal walking of bonobos, can be used to reliably calculate actual velocities, by applying formulae based on lateral-view video recordings. Secondly, we investigate the effect of speed on peak plantar pressures during bipedal and quadrupedal walking of the bonobo. Data were obtained from 4 individuals from a group of bonobos at the Animal Park Planckendael. From our study, we can conclude that both walking speeds calculated from contact times and lower leg length or simply from recorded contact times are good estimators for walking speed, when direct observation of the latter is impossible. Further, it was found that effects of speed on peak plantar pressures and vertical forces are absent or at least subtle in comparison to a large variation in pressure patterns. In bonobos, the same pressure patterns are used at all walking speeds, and, in consequence, we do not expect major changes in foot function.
本文的目的有两个。首先，我们通过应用基于侧视图视频记录的公式，研究在倭黑猩猩四足行走和双足行走过程中，足底压力测量系统记录的接触时间是否可用于可靠地计算实际速度。其次，我们研究速度对倭黑猩猩双足行走和四足行走过程中足底峰值压力的影响。数据来自普朗肯代尔动物园一群倭黑猩猩中的4只个体。从我们的研究中可以得出结论，当无法直接观察行走速度时，根据接触时间和小腿长度计算出的行走速度，或者仅仅根据记录的接触时间计算出的行走速度，都是行走速度的良好估计值。此外，研究发现，与压力模式的巨大变化相比，速度对足底峰值压力和垂直力的影响不存在或至少不明显。在倭黑猩猩中，所有行走速度下使用的压力模式相同，因此，我们预计足部功能不会发生重大变化。
