Fig. 4From: The Salzburg 10/7 HIIT shock cycle study: the effects of a 7-day high-intensity interval training shock microcycle with or without additional low-intensity training on endurance performance, well-being, stress and recovery in endurance trained athletes—study protocol of a randomized controlled trialLactate threshold determination. An example of how LT (lactate threshold) is determined based on the results of the incremental test. v, treadmill running velocity in km/h; f = best fit regression function of blood lactate over treadmill velocity; La(v), blood lactate values at the treadmill velocity v in mmol/LBack to article page