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Lactate threshold concepts: how valid are they?

Oliver Faude1, Wilfried Kindermann, Tim Meyer

  • 1Institute of Sports Medicine, University Paderborn, Paderborn, Germany. o.faude@mx.uni-saarland.de

Sports Medicine (Auckland, N.Z.)
|May 21, 2009
PubMed
Summary
This summary is machine-generated.

Lactate thresholds (LTs) are crucial for assessing endurance performance and prescribing training intensities. This review validates various LT concepts within the aerobic-anaerobic transition framework, showing strong correlations with performance and maximal lactate steady state (MLSS).

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Biotechnology

Background:

  • Blood lactate thresholds (LTs) and lactate curves are vital for diagnosing endurance performance.
  • Debate exists regarding the terminology and physiological basis of LT concepts.
  • The aerobic-anaerobic transition framework is commonly used for performance diagnosis and training intensity prescription.

Purpose of the Study:

  • To evaluate the validity of LT concepts in assessing endurance capacity.
  • To integrate LT concepts within the aerobic-anaerobic transition framework.
  • To provide a rationale for performance diagnosis and training prescription in endurance sports.

Main Methods:

  • Review and evaluation of 25 different LT concepts.
  • Categorization of LT concepts into three groups based on methodology.
  • Analysis of 32 studies correlating LTs with simulated or actual endurance performance and maximal lactate steady state (MLSS).

Main Results:

  • The majority of studies reported strong linear correlations between LTs and endurance performance, especially in running.
  • Evidence suggests some LTs can accurately estimate MLSS.
  • LTs are considered valid performance indicators and useful for training intensity prescription when correlated with performance and MLSS.

Conclusions:

  • LT concepts, when integrated into the aerobic-anaerobic transition framework, offer a valid approach for assessing endurance performance.
  • LTs demonstrate strong linear relationships with endurance performance and can estimate MLSS, supporting their use in training prescription.
  • This review clarifies LT controversies and provides a framework for future research and sports practice.