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Vol. 66, No. 1-4, 1996
Issue release date: 1996
Section title: Locomotion of Infants and Adults
Folia Primatol 1996;66:126–136
(DOI:10.1159/000157190)

Centre of Gravity of the Body during the Ontogeny of Chimpanzee Bipedal Walking

Kimura T.
Department of Anthropology, Graduate School of Science, University of Tokyo, Japan

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Article / Publication Details

First-Page Preview
Abstract of Locomotion of Infants and Adults

Received: 7/28/1995
Accepted: 12/25/1995
Published online: 9/16/2008
Issue release date: 1996

Number of Print Pages: 11
Number of Figures: 0
Number of Tables: 0

ISSN: 0015-5713 (Print)
eISSN: 1421-9980 (Online)

For additional information: http://www.karger.com/FPR

Abstract

Bipedal walking was studied in chimpanzees between 1 and 19 years of age by measuring the external energy generated by the movement of the centre of gravity of the body. The ‘recovery’ of external energy in infant chimpanzees less than five years of age is smaller than in juveniles from 5 to 19 years of age. During the single stance phase, the short, flexed hindlimb of chimpanzees younger than 5 years is not able to lift the body centre of gravity high enough, so that these infants have a considerable energy output during bipedal walking. Extension of the hindlimb is one of the bases for energy economy in human bipedalism. The development of this low-energy-cost mechanism is an important component of the evolution of human bipedalism.

© 1996 S. Karger AG, Basel


  

Author Contacts

Dr. Tasuku Kimura, Department of Anthropology, Graduate School of Science, The University of Tokyo, Bunkyo, Tokyo 113 (Japan)

  

Article Information

Received: July 28, 1995
Accepted: December 25, 1995
Published online: September 16, 2008
Number of Print Pages : 11

  

Publication Details

Folia Primatologica (International Journal of PrimatologyInternationale Zeitschrift für PrimatologieJournal international de Primatologie)

Vol. 66, No. 1-4, Year 1996 (Cover Date: 1996)

Journal Editor: Crompton R.H. (Liverpool)
ISSN: 0015–5713 (Print), eISSN: 1421–9980 (Online)

For additional information: http://www.karger.com/FPR


Article / Publication Details

First-Page Preview
Abstract of Locomotion of Infants and Adults

Received: 7/28/1995
Accepted: 12/25/1995
Published online: 9/16/2008
Issue release date: 1996

Number of Print Pages: 11
Number of Figures: 0
Number of Tables: 0

ISSN: 0015-5713 (Print)
eISSN: 1421-9980 (Online)

For additional information: http://www.karger.com/FPR


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