Document Detail


The energy cost of running increases with the distance covered.
MedLine Citation:
PMID:  1893899     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The net energy cost of running per unit of body mass and distance (Cr, ml O2.kg-1.km-1) was determined on ten amateur runners before and immediately after running 15, 32 or 42 km on an indoor track at a constant speed. The Cr was determined on a treadmill at the same speed and each run was performed twice. The average value of Cr, as determined before the runs, amounted to 174.9 ml O2.kg-1.km-1, SD 13.7. After 15 km, Cr was not significantly different, whereas it had increased significantly after 32 or 42 km, the increase ranging from 0.20 to 0.31 ml O2.kg-1.km-1 per km of distance (D). However, Cr before the runs decreased, albeit at a progressively smaller rate, with the number of trials (N), indicating an habituation effect (H) to treadmill running. The effects of D alone were determined assuming that Cr increased linearly with D, whereas H decreased exponentially with increasing N, i.e. Cr = Cr0 + a D + He-bN. The Cr0, the "true" energy cost of running in nonfatigued subjects accustomed to treadmill running, was assumed to be equal to the average value of Cr before the run for N equal to or greater than 7 (171.1 ml O2.kg-1.km-1, SD 12.7; n = 30).(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
J C Brueckner; G Atchou; C Capelli; A Duvallet; D Barrault; E Jousselin; M Rieu; P E di Prampero
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of applied physiology and occupational physiology     Volume:  62     ISSN:  0301-5548     ISO Abbreviation:  Eur J Appl Physiol Occup Physiol     Publication Date:  1991  
Date Detail:
Created Date:  1991-10-22     Completed Date:  1991-10-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0410266     Medline TA:  Eur J Appl Physiol Occup Physiol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  385-9     Citation Subset:  IM    
Affiliation:
Department of Physiology, CMU, Geneva, Switzerland.
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MeSH Terms
Descriptor/Qualifier:
Adult
Energy Metabolism / physiology*
Humans
Oxygen Consumption / physiology
Respiration / physiology
Running*
Time Factors

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


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