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Determining the Contribution of the Energy Systems During Exercise
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Performance and energy systems contributions during upper-body sprint interval exercise.

Emerson Franchini1, Monica Yuri Takito2, Maria Augusta Peduti Dal'Molin Kiss3

  • 1Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Brazil.

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Keywords:
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Area of Science:

  • Sports Physiology
  • Exercise Science
  • Human Performance

Background:

  • The Wingate anaerobic test is a common measure of anaerobic power.
  • Understanding energy system contributions is crucial for optimizing athletic performance.
  • Judo requires intermittent high-intensity efforts, demanding significant anaerobic contributions.

Purpose of the Study:

  • To examine the performance and energy system contributions during repeated upper-body Wingate tests in trained judo athletes.
  • To analyze how energy system contributions (ATP-PCr, glycolytic, oxidative) change across four Wingate bouts.
  • To investigate the impact of short recovery intervals on energy system utilization.

Main Methods:

  • Four repeated upper-body Wingate tests with 3-minute recovery intervals.
  • Inclusion of 14 well-trained male judo athletes in their competitive phase.
  • Estimation of energy system contributions via oxygen uptake and blood lactate measurements.

Main Results:

  • Glycolytic contribution was highest in the first bout, decreasing significantly in subsequent bouts.
  • Adenosine triphosphate-creatine phosphate (ATP-PCr) contribution showed a relative increase in the fourth bout compared to the first.
  • Absolute oxidative and ATP-PCr contributions remained relatively constant, suggesting adaptation and recovery during intervals.

Conclusions:

  • Repeated Wingate tests reveal a shift in relative energy system contribution, with increased reliance on ATP-PCr in later bouts.
  • Partial resynthesis of phosphocreatine during recovery intervals likely contributes to sustained ATP-PCr availability.
  • Findings highlight the dynamic interplay of energy systems during repeated high-intensity exercise in judo athletes.