Generally, accumulation of lactate limits performance to periods from 30 sec to 15 min. Thus, the same label is used for different concepts and their assessment protocols which lead to different values and training implications. Billat displays the various implications of this confusing situation. They are also differentiated by the protocols used to measure them. Some examples are listed below.
Plasma lactate accumulation and distance running performance.
Maximal steady state versus state of conditioning. Onset of blood lactate accumulation and marathon running performance. Reproducibility of aerobic and anaerobic thresholds in 20-25 year old men. A method for determining the maximal steady state of blood lactate concentration from two levels of submaximal exercise. Just because the same label is used does not mean analogous concepts are being discussed.