Document Detail


Influence of exercise intensity on time spent at high percentage of maximal oxygen uptake during an intermittent session in young endurance-trained athletes.
MedLine Citation:
PMID:  17851682     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to compare, during a 30s intermittent exercise (IE), the effects of exercise intensity on time spent above 90% VO2max(t90VO2max) and time spent above 95% VO2max(t95VO2max) in young endurance trained athletes. We hypothesized that during a 30sIE, an increase in exercise intensity would allow an increase in t90VO2max and t95VO2max due to a decrease in time to achieve 90% or 95% of VO2max. Nine endurance-trained male adolescents took part in three field tests. After determination of their VO2max and maximal aerobic velocity (MAV), they performed, until exhaustion, two intermittent exercise sessions alternating 30s at 100% of MAV (IE(100)) or 110% of MAV (IE(110)) and 30s at 50% of MAV. Mean time to exhaustion (t (lim)) values obtained during IE(100) were significantly longer than during IE(110) (p < 0.01). Moreover, no significant difference was found in t90VO2max or t95VO2max) expressed in absolute or relative (%t (lim)) values between IE(100) and IE(110). In conclusion, an increased of 10% of exercise intensity during a 30s intermittent exercise model (with active recovery), does not seem to be the most efficient exercise to solicit oxygen uptake to its highest level in young endurance-trained athletes.
Authors:
Delphine Thevenet; Magaly Tardieu; Hassane Zouhal; Christophe Jacob; Ben Abderraouf Abderrahman; Jacques Prioux
Publication Detail:
Type:  Journal Article     Date:  2007-09-13
Journal Detail:
Title:  European journal of applied physiology     Volume:  102     ISSN:  1439-6327     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-07     Completed Date:  2009-02-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  19-26     Citation Subset:  IM    
Affiliation:
Laboratoire (Motricitè, Interactions, Performance) (JE n2438), UFR STAPS, Nantes Cedex, France. thevenet.d@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Exercise Test
Humans
Male
Oxygen Consumption / physiology*
Physical Endurance / physiology*
Physical Exertion / physiology*
Sports / physiology*
Time Factors

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