title: The influence of pacing strategy on VO2 and supramaximal kayak performance.
abstract: OBJECTIVE
  The purpose of this study was to investigate the effects of manipulating pacing strategy on VO2 and kayak ergometer performance in well-trained paddlers.
  
  
  METHODS
  Eight well-trained kayak paddlers (500-m time = 115-125 s) first performed a graded exercise test for determination of VO2max and lactate (La-) parameters. On subsequent days and in a random, counterbalanced order, subjects performed a 2-min, kayak ergometer test using either an all-out start or even pacing strategy.
  
  
  RESULTS
  There was a significantly greater peak power (747.6 +/- 152.0 vs 558.3 +/- 110.1 W) and average power (348.5 +/- 47.6 vs 335.5 +/- 44.8 W) using the all-out start strategy, when compared with the even-paced strategy. There was however, no significant difference between the two pacing strategies for peak VO2, accumulated oxygen deficit (AOD), peak [La-], or posttest pH. Using the all-out start, total VO2 was significantly greater (7.3 +/- 0.8 vs 6.9 +/- 0.8 L).
  
  
  CONCLUSIONS
  The results of this study indicate that 2-min kayak ergometer performance is significantly greater following an all-out start strategy when compared with an even-paced strategy. The improved performance appears to be attributable to faster VO2 kinetics, without a significant change in the total AOD (although the AOD distribution was altered).
authors.affiliation: Department of Human Movement and Exercise Science, University of Western Australia, Crawley, Australia. dbishop@cyllene.uwa.edu.au
authors.forename: David
authors.initials: D
authors.lastname: Bishop
authors.forename: Darrell
authors.initials: D
authors.lastname: Bonetti
authors.forename: Brian
authors.initials: B
authors.lastname: Dawson
mesh_terms: D000293:Adolescent; D000328:Adult; D003163:Competitive Behavior / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D000860:Hypoxia / Q000378:metabolism; D019344:Lactic Acid / Q000097:blood; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology; D010100:Oxygen / Q000378:metabolism; D010101:Oxygen Consumption / Q000502:physiology*; D013177:Sports / Q000502:physiology*; D013647:Task Performance and Analysis
chemical_list: D019344:Lactic Acid; D010100:Oxygen