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Author (up) Julio, U.F.; Panissa, V.L.G.; Esteves, J.V.D.C.; Cury, R.L.; Agostinho, M.F.; Franchini, E. url  doi
openurl 
  Title Energy System Contributions to Simulated Judo Matches Type Journal Article
  Year 2016 Publication International Journal of Sports Physiology and Performance Abbreviated Journal Int J Sports Physiol Perform  
  Volume Issue Pages 1-24  
  Keywords blood lactate; combat sports; oxygen consumption; rating of perceived exertion; time-motion.  
  Abstract PURPOSE: To estimate the contribution of the three energy systems to simulated judo matches. METHODS: Twelve judo athletes (18 +/- 1 years-old, 175.1 +/- 5.3 cm, 74.3 +/- 10.5 kg, 11.7 +/- 1.5 % body fat, and 8 +/- 2 years of practice) performed five combats with different durations (1, 2, 3, 4 and 5-min), against the same opponent, on different days and blinded to the duration. The estimated energy contribution for the oxidative, glycolytic and ATP-PCr systems were calculated based on VO2 during activity, delta of lactate and the fast phase of excess VO2, respectively. Analysis of mixed models for repeated measures were used to compare the contribution of the three energy systems and different durations of judo matches, followed by a post hoc Bonferroni. RESULTS: The oxidative system contribution (70%) was higher than the glycolytic (8%; p < 0.001) and ATP-PCr (21%; p < 0.001) energy systems (in all durations), and the ATP-PCr contribution was higher than the glycolytic energy system (up to 3-min). Additionally, during the match there was an increase in the oxidative (from 50% to 81%; p < 0.001), a decrease in the ATP-PCr (from 40% to 12%; p < 0.001) and maintenance of the glycolytic contributions (between 6% and 10%). CONCLUSIONS: There is a predominance of the oxidative system to supply the energy cost of judo matches from the first minute of combat up to the end, when compared to the anaerobic systems.  
  Address 1 Department of Sport, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1555-0265 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:27736247 Approved no  
  Call Number JSP @ lw @ Serial 103  
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