Spatio-temporal gait characteristics of the hind-limb cycles during voluntary bipedal and quadrupedal walking in bonobos (Pan paniscus).
Spatio-temporal gait characteristics of the hind-limb cycles during voluntary bipedal and quadrupedal walking in bonobos (Pan paniscus).
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DOI：
10.1002/(sici)1096-8644(200004)111:4
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发表时间：
2000-04
影响因子：
2.8
通讯作者：
P. Aerts;R. Damme;L. Elsacker;Vicky Duchêne
中科院分区：
文献类型：
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作者：
P. Aerts;R. Damme;L. Elsacker;Vicky Duchêne
测定了9只黑猩猩在一定速度范围内四足行走和两足行走时后肢循环的时空步态特征(步长、步长、步频、占空比)。根据动态相似原理，将数据重新计算为无量纲量。以小腿长度作为参考长度。黑猩猩的速度调节策略的个体间变异性似乎很低。与四足行走相比，两足矮黑猩猩使用较小的步幅来达到给定的速度(差异随着速度的增加而增加)，导致较高频率的较短步幅。在(“混合”)动态模式运动方法(Latach，1998)的背景下，我们认为，尽管存在这些绝对差异，但预期步行速度是以相似的方式得出四足和两足步行运动学的基本控制变量。动力系统初始状态的不同可能是两种步态步长不同的原因。与文献数据的比较表明，行走速度对黑猩猩、普通黑猩猩和人类的步长和频率的影响是相似的。这表明(至少)在现存的人类中，时空步态特征是高度相似的，尽管在质量分布和两足姿势上存在明显的差异。
Spatio-temporal gait characteristics (step and stride length, stride frequency, duty factor) were determined for the hind-limb cycles of nine bonobos (Pan paniscus) walking quadrupedally and bipedally at a range of speeds. The data were recalculated to dimensionless quantities according to the principle of dynamic similarity. Lower leg length was used as the reference length. Interindividual variability in speed modulation strategy of bonobos appears to be low. Compared to quadrupedal walking, bipedal bonobos use smaller steps to attain a given speed (differences increase with speed), resulting in shorter strides at a higher frequency. In the context of the ("hybrid") dynamic pattern approach to locomotion (Latach, 1998) we argue that, despite these absolute differences, intended walking speed is the basic control variable which elicits both quadrupedal and bipedal walking kinematics in a similar way. Differences in the initial status of the dynamic system may be responsible for the differences in step length between both gaits. Comparison with data deduced from the literature shows that the effects of walking speed on stride length and frequency are similar in bonobos, common chimpanzees, and humans. This suggests that (at least) within extant homininae, spatio-temporal gait characteristics are highly comparable, and this in spite of obvious differences in mass distribution and bipedal posture.