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Related Experiment Video

Updated: Jul 13, 2026

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
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Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training

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Methods to quantify intermittent exercises.

François-Denis Desgorces1, Xavier Sénégas, Judith Garcia

  • 1Unité de Formation et de Recherche en Sciences et Techniques des Activités Physiques et Sportives (UFR STAPS), 1 rue Lacretelle, Université Paris 5, 75015 Paris, France. francois.desgorces@univ-paris5.fr

Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquee, Nutrition Et Metabolisme
|July 12, 2007
PubMed
Summary

A new Work Endurance Recovery (WER) method accurately quantifies training load across varied exercises, unlike traditional heart rate and RPE methods. WER shows lower interindividual variability, enabling better athlete comparisons and training program analysis.

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Biotechnology

Background:

  • Quantifying training load (TL) is crucial for optimizing athletic performance and preventing overtraining.
  • Traditional methods like heart rate (HR) and rate of perceived exertion (RPE) may not accurately reflect physiological stress across diverse exercise types.
  • The need for a universal method to compare training loads from different exercise modalities is evident.

Purpose of the Study:

  • To quantify intermittent training sessions using strength, sprint, and endurance exercises.
  • To compare the efficacy of traditional training impulse (TRIMP), HR-zone, and RPE-based methods with a novel Work Endurance Recovery (WER) method.
  • To assess the interindividual variability and accuracy of each quantification method.

Main Methods:

  • Participants performed strength, sprint, and endurance sessions until exhaustion.
  • Training load was quantified using TRIMP, HR-zone, RPE-based, and the new WER method.
  • Physiological responses including blood lactate, DOMS, RPE, and HR were measured to assess session effects.

Main Results:

  • Endurance sessions showed higher HR response, sprint sessions higher blood lactate, and strength sessions higher DOMS.
  • WER method yielded similar TLs across exercise types, while HR and RPE methods showed significant differences.
  • WER demonstrated low interindividual variability and correlated well with HR-based methods for endurance exercise.

Conclusions:

  • The WER method provides a more consistent and comparable quantification of training load across varied intermittent exercises.
  • WER offers a valuable tool for comparing athletes' training loads and responses to training programs.
  • WER's low interindividual variability enhances its utility in personalized training prescription and analysis.