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Kinematic and gait similarities between crawling human infants and other quadruped mammals
Max Planck Inst Intelligent Syst, Autonomous Mot Dept, D-72076 Tubingen, Germany..
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
Ecole Polytech Fed Lausanne, Sch Engn, Interfac Inst Bioengn, Biorobot Lab, Lausanne, Switzerland..
2015 (English)In: Frontiers in Neurology, ISSN 1664-2295, E-ISSN 1664-2295, Vol. 6, UNSP 17Article in journal (Refereed) Published
Abstract [en]

Crawling on hands and knees is an early pattern of human infant locomotion, which offers an interesting way of studying quadrupedalism in one of its simplest form. We investigate how crawling human infants compare to other quadruped mammals, especially primates. We present quantitative data on both the gait and kinematics of seven 10-month-old crawling infants. Body movements were measured with an optoelectronic system giving precise data on 3-dimensional limb movements. Crawling on hands and knees is very similar to the locomotion of non-human primates in terms of the quite protracted arm at touch-down, the coordination between the spine movements in the lateral plane and the limbs, the relatively extended limbs during locomotion and the strong correlation between stance duration and speed of locomotion. However, there are important differences compared to primates, such as the choice of a lateral-sequence walking gait, which is similar to most non-primate mammals and the relatively stiff elbows during stance as opposed to the quite compliant gaits of primates. These finding raise the question of the role of both the mechanical structure of the body and neural control on the determination of these characteristics.

Place, publisher, year, edition, pages
2015. Vol. 6, UNSP 17
Keyword [en]
infant locomotion, crawling, gait, kinematics, quadruped locomotion
National Category
URN: urn:nbn:se:uu:diva-267690DOI: 10.3389/fneur.2015.00017ISI: 000363756700002PubMedID: 25709597OAI: oai:DiVA.org:uu-267690DiVA: diva2:873843
EU, European Research Council, IST-2004-004370Max Planck Society
Available from: 2015-11-25 Created: 2015-11-25 Last updated: 2015-11-25Bibliographically approved

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