Document Detail


Maximal strength-training effects on force-velocity and force-power relationships explain increases in aerobic performance in humans.
MedLine Citation:
PMID:  12458369     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Maximal strength-training with an emphasis on maximal mobilization during cross-country skiing increases exercise economy when double-poling. The aim of this experiment was to investigate whether the mechanism of this increase is a change in the force-velocity relationship and the mechanical power output. A group of 19 cross-country skiers having an average peak oxygen uptake of 255 ml x kg(-0.67) body mass x min(-1) or 61 ml x kg(-1) x min(-1) were randomly assigned to either a high resistance-training group (n=10) or a control group (n=9). Upper body endurance was tested on a ski ergometer. The high-resistance-training group trained for 15 min on three occasions a week for 9 weeks. Training consisted of three series of five repetitions using 85% of one repetition maximum (1RM), with emphasis on high velocity in the concentric part of the movement. Upper body exercise economy, 1RM and time to exhaustion increased significantly in the high resistance-training group, but was unchanged in the control group. Peak power and the velocities for a given load increased significantly, except for the two lowest loads. We conclude that the increased exercise economy after a period of upper body high resistance-training can be partly explained by a specific change in the force-velocity relationship and the mechanical power output.
Authors:
Håvard Østerås; Jan Helgerud; Jan Hoff
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial     Date:  2002-10-17
Journal Detail:
Title:  European journal of applied physiology     Volume:  88     ISSN:  1439-6319     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2002 Dec 
Date Detail:
Created Date:  2002-11-29     Completed Date:  2003-01-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  255-63     Citation Subset:  IM    
Affiliation:
Department of Sport Sciences, Norwegian University of Science and Technology, 7034 Trondheim, Norway. hos@ahs.hist.no
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MeSH Terms
Descriptor/Qualifier:
Adult
Ergometry
Humans
Male
Muscle, Skeletal / physiology*
Oxygen Consumption
Physical Education and Training*
Physical Endurance
Reference Values
Skiing
Weight Lifting / physiology

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


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