Document Detail


Neuromuscular factors determining 5 km running performance and running economy in well-trained athletes.
MedLine Citation:
PMID:  16456672     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study investigated the effects of the neuromuscular and force-velocity characteristics in distance running performance and running economy. Eighteen well-trained male distance runners performed five different tests: 20 m maximal sprint, running economy at the velocity of 4.28 m s(-1), 5 km time trial, maximal anaerobic running test (MART), and a treadmill test to determine VO2max. The AEMG ratio was calculated by the sum average EMG (AEMG) of the five lower extremity muscles during the 5 km divided by the sum AEMG of the same muscles during the maximal 20 m sprinting. The runners' capacity to produce power above VO2max (MART VO2gain) was calculated by subtracting VO2max from the oxygen demand of the maximal velocity in the MART (V MART). Velocity of 5 km (V 5K) correlated with V MART (r=0.77, p<0.001) and VO2max (r=0.49, p<0.05). Multiple linear regression analysis showed that MART VO2gain and VO2max explained 73% of the variation in V 5K. A significant relationship also existed between running economy and MART VO2gain (r=0.73, p<0.01). A significant correlation existed between V 5K and AEMG ratio during the ground contact phase at the 3 km (r=0.60, p<0.05) suggesting that neural input may affect distance running performance. The results of the present study support the idea that distance running performance and running economy are related to neuromuscular capacity to produce force and that the V MART can be used as a determinant of distance-running performance.
Authors:
Ari T Nummela; Leena M Paavolainen; Karen A Sharwood; Mike I Lambert; Timothy D Noakes; Heikki K Rusko
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-02-03
Journal Detail:
Title:  European journal of applied physiology     Volume:  97     ISSN:  1439-6319     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2006 May 
Date Detail:
Created Date:  2006-04-21     Completed Date:  2006-07-17     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1-8     Citation Subset:  IM    
Affiliation:
KIHU-Research Institute for Olympic Sports, Rautpohjankatu 6, 40700, Jyväskylä, Finland. ari.nummela@kihu.fi
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MeSH Terms
Descriptor/Qualifier:
Adult
Electromyography / methods
Humans
Male
Muscle Contraction / physiology*
Muscle, Skeletal / innervation,  physiology*
Oxygen Consumption / physiology*
Physical Endurance / physiology*
Physical Exertion / physiology*
Psychomotor Performance / physiology*
Running / physiology*

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