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Training Load and Acute Performance Decrements Following Different Training Sessions.

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Different training load (TL) metrics quantify exercise intensity and duration inconsistently. Only the rating of perceived exertion metric aligned with actual performance decrements after training sessions.

Keywords:
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Area of Science:

  • Sports Science
  • Exercise Physiology
  • Performance Analytics

Background:

  • Accurate quantification of training load (TL) is crucial for optimizing athletic performance and preventing overtraining.
  • Various metrics exist to measure TL, but their consistency and relationship with acute performance decrements remain debated.

Purpose of the Study:

  • To compare how different TL metrics quantify training sessions varying in intensity and duration.
  • To assess the relationship between various TL metrics and immediate post-exercise performance decrements.

Main Methods:

  • Eleven male recreational cyclists completed four randomized training sessions followed by a 3-km time trial (TT).
  • Baseline TT performance was established prior to training.
  • Training sessions were measured using seven TL metrics: four heart rate-based, two power output-based, and one rating of perceived exertion-based.

Main Results:

  • Training load quantification varied significantly across the different TL metrics.
  • Metrics utilizing heart rate and power output showed discrepancies.
  • Only the rating of perceived exertion-based TL metric correlated with observed acute performance decrements.

Conclusions:

  • Existing training load metrics provide inconsistent estimations of training intensity and duration.
  • The rating of perceived exertion emerges as a reliable indicator of training load's impact on acute performance recovery.