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Area of Science:

  • Sports Science
  • Exercise Physiology
  • Cycling Performance

Background:

  • Optimizing energy resource distribution is key for peak cycling performance.
  • Understanding pacing strategies is crucial for competitive cyclists.

Purpose of the Study:

  • Investigate power output during 250-m, 500-m, and 1000-m cycling time trials.
  • Characterize the pacing strategies adopted by trained cyclists in fixed-distance events.

Main Methods:

  • Nine trained cyclists performed incremental tests and three time trials.
  • Peak power and gross efficiency were measured before and after trials.
  • Oxygen consumption was monitored to assess aerobic and anaerobic energy contributions.

Main Results:

  • Peak power during time trials (PPTT) was lower than peak sprint power (PP sprint).
  • Gross efficiency declined significantly during all trials.
  • Anaerobic energy contribution was lower in the 250-m trial compared to longer distances.

Conclusions:

  • The 250-m trial pacing resembles an "all-out" strategy, though not maximal.
  • A true "all-out" power output strategy may not be feasible in fixed-distance events.
  • Longer 500-m and 1000-m trials exhibited more conservative pacing with constant anaerobic power output.