Predicting maximal lactate steady state in children and adults

Pediatr Exerc Sci. 2009 Nov;21(4):493-505. doi: 10.1123/pes.21.4.493.


The value of blood lactate concentration (BLC) measured during incremental load tests in predicting maximal lactate-steady-state (MLSS) workload has rarely been investigated in children. In 17 children and 18 adults MLSS was 4.1 +/- 0.9 mmol l(-1). Workload at BLC of 3.0 mmol l(-1) determined during an incremental load test explained about 80% of the variance (p < .001) and best predicted MLSS workload independent of age. This was despite the increase in power per time related to maximum incremental load test power being higher (p < .001) in children than in adults. The BLC response to given exercise intensities is faster in children without affecting MLSS.

Publication types

  • Comparative Study
  • Evaluation Study

MeSH terms

  • Adult
  • Age Factors
  • Anaerobic Threshold / physiology
  • Biomarkers / blood
  • Child
  • Exercise Test*
  • Female
  • Humans
  • Lactic Acid / blood*
  • Male
  • Physical Exertion / physiology*
  • Predictive Value of Tests
  • Sex Factors
  • Workload


  • Biomarkers
  • Lactic Acid