Document Detail

Interlimb coordination, gait, and neural control of quadrupedalism in chimpanzees.
MedLine Citation:
PMID:  9066899     Owner:  NLM     Status:  MEDLINE    
Interlimb coordination is directly relevant to the understanding of the neural control of locomotion, but few studies addressing this topic for nonhuman primates are available, and no data exist for any hominoid other than humans. As a follow-up to Jungers and Anapol's ([1985] Am. J. Phys. Anthropol. 67:89-97) analysis on a lemur and talapoin monkey, we describe here the patterns of interlimb coordination in two chimpanzees as revealed by electromyography. Like the lemur and talapoin monkey, ipsilateral limb coupling in chimpanzees is characterized by variability about preferred modes within individual gaits. During symmetrical gaits, limb coupling patterns in the chimpanzee are also influenced by kinematic differences in hindlimb placement ("overstriding"). These observations reflect the neurological constraints placed on locomotion but also emphasize the overall flexibility of locomotor neural mechanisms. Interlimb coordination patterns are also species-specific, exhibiting significant differences among primate taxa and between primates and cats. Interspecific differences may be suggestive of phylogenetic divergence in the basic mechanisms for neural control of locomotion, but do not preclude morphological explanations for observed differences in interlimb coordination across species.
L J Shapiro; F C Anapol; W L Jungers
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  American journal of physical anthropology     Volume:  102     ISSN:  0002-9483     ISO Abbreviation:  Am. J. Phys. Anthropol.     Publication Date:  1997 Feb 
Date Detail:
Created Date:  1997-05-29     Completed Date:  1997-05-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0400654     Medline TA:  Am J Phys Anthropol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  177-86     Citation Subset:  IM    
Department of Anthropology, University of Texas at Austin 78712, USA.
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MeSH Terms
Gait / physiology*
Locomotion / physiology
Muscle, Skeletal / innervation*,  physiology*
Pan troglodytes / physiology*
Species Specificity

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