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Table of Contents
Vol. 80, No. 1, 2009
Issue release date: April 2009
Section title: Original Article
Folia Primatol 2009;80:45–62
(DOI:10.1159/000209676)

Development of Bipedal Walking in Humans and Chimpanzees: A Comparative Study

Kimura T. · Yaguramaki N.
aIshikawa Prefectural Nursing University, Kahoku City, and bMedBridge, Kyoto, Japan

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Article / Publication Details

First-Page Preview
Abstract of Original Article

Received: 3/31/2008
Accepted: 12/11/2008
Published online: 3/27/2009

Number of Print Pages: 18
Number of Figures: 9
Number of Tables: 4

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

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

Abstract

Development of bipedal walking from the very early stage of walking was studied longitudinally in infant humans and chimpanzees. In contrast to adults, infants of neither species could walk steadily and rhythmically step by step. Short braking duration and small recovery of mechanical energy were demonstrated in infants of both species. The trunk was inclined forwards, the extension of lower limb joints was limited and the accelerating force was not strongly activated. Potential energy was not efficiently used in progression. Walking in adult chimpanzees still showed a forward-inclined trunk, short braking duration, small recovery of energy and large variance of parameters compared to the unique human adult bipedalism. The locomotor characteristics of presumed pre-bipedal ancestors are discussed.


  

Author Contacts

Tasuku Kimura
Ishikawa Prefectural Nursing University, 7-1 Nakanuma Tsu, Kahoku City, Ishikawa 929-1212 (Japan)
Tel. +81 76 281 8374, Fax +81 76 281 8388
E-Mail tkimura@ishikawa-nu.ac.jp

  

Article Information

Received: March 31, 2008
Accepted after revision: December 11, 2008
Published online: March 27, 2009
Number of Print Pages : 18
Number of Figures : 9, Number of Tables : 4, Number of References : 48

  

Publication Details

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

Vol. 80, No. 1, Year 2009 (Cover Date: April 2009)

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 Original Article

Received: 3/31/2008
Accepted: 12/11/2008
Published online: 3/27/2009

Number of Print Pages: 18
Number of Figures: 9
Number of Tables: 4

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

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


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