Lactate Threshold Heart Rate (LTHR)

Mathematical and physiological reference for Lactate Threshold Heart Rate, the heart-rate value corresponding to the second lactate threshold (LT2 / maximum lactate steady state), used as the heart-rate anchor for HR-based zone prescription and as a cross-modality intensity reference when power data is unavailable.

Academy/physiology

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References

Jones AM, Vanhatalo A (2017). The 'Critical Power' concept: applications to sports performance with a focus on intermittent high-intensity exercise. Sports Med 47 Suppl 1:65-78. doi: 10.1007/s40279-017-0688-0 · PMID 28332113
Poole DC, Burnley M, Vanhatalo A, Rossiter HB, Jones AM (2016). Critical Power: an important fatigue threshold in exercise physiology. Med Sci Sports Exerc 48:2320-2334. doi: 10.1249/MSS.0000000000000939 · PMID 27031742
Buchheit M (2014). Monitoring training status with HR measures: do all roads lead to Rome? Front Physiol 5:73. doi: 10.3389/fphys.2014.00073 · PMID 24578692
Coyle EF, González-Alonso J (2001). Cardiovascular drift during prolonged exercise: new perspectives. Exerc Sport Sci Rev 29:88-92. doi: 10.1097/00003677-200104000-00009 · PMID 11337829
Valenzuela PL, Morales JS, Foster C, Lucia A, de la Villa P (2018). Is the functional threshold power a valid surrogate of the lactate threshold? Int J Sports Physiol Perform 13:1293-1298. doi: 10.1123/ijspp.2018-0008 · PMID 29745765
Seiler S (2010). What is best practice for training intensity and duration distribution in endurance athletes? Int J Sports Physiol Perform 5:276-291. doi: 10.1123/ijspp.5.3.276