Document Detail


Stride length and speed for adults, children, and fossil hominids.
MedLine Citation:
PMID:  6422766     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Research workers studying the relationship between stride length (L) and speed (u) in human walking have often expressed their results as multiples of stature (h): they have given values of L/h and u/h. They have claimed or implied that this takes account of differences of body size and that L/h should be the same function of u/h for people of all sizes. It is shown that this is not true for comparisons of children with adults. Further, it is argued by dimensional analysis that u/square root gh is a more appropriate speed parameter that u/h (g is the acceleration of free fall). It is shown that L/h is approximately the same function of u/square root gh for children aged 4 or more years as for adults. The empirical relationship between L/h and u/square root gh is used to make new estimates of walking speed for the early hominid footprints found at Laetoli, Tanzania. The speeds obtained are equivalent to mean speeds of human walking observed in small towns (i.e., they give approximately equal values of u/square root gh).
Authors:
R M Alexander
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American journal of physical anthropology     Volume:  63     ISSN:  0002-9483     ISO Abbreviation:  Am. J. Phys. Anthropol.     Publication Date:  1984 Jan 
Date Detail:
Created Date:  1984-03-29     Completed Date:  1984-03-29     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:  23-7     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Animals
Anthropology, Physical
Body Height
Child
Fossils*
Gait*
Haplorhini / anatomy & histology,  physiology*
Humans
Paleontology*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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