Put simply, the lactate threshold is an exercise intensity where blood lactate shows an accelerated increase. The image below highlights the relationship between exercise intensity and lactate levels. At low intensities, lactate remains low, until a point referred to as the aerobic threshold (LT1). Lactate threshold is the point where lactic acid begins to accumulate in your muscles - your body switches from aerobic respiration where lactic acid is easily moved out of the muscles, to anaerobic respiration where lactate builds up. The lactate threshold corresponds pretty closely to the ventilatory threshold, and is often used as a marker of the anaerobic threshold. In untrained individuals, the lactate threshold occurs around 50-60% of your VO2 max (maximal oxygen uptake). However, in aerobically trained athletes (like runners), the lactate threshold typically occurs So, what is Threshold training? This is running at a pace where lactate does not rise significantly in the blood during the run, but rather, it stays at a constant level. Essentially, it is the point JUST BEFORE the moment where the amount of lactic acid build-up is greater than the body can efficiently get rid of. What Is Your Threshold Pace? Threshold pace—also known as T-pace—can get a little complicated. In scientific terms, this is the pace at which your body needs to produce energy without oxygen. It does this using glycolysis, which produces a byproduct called lactate. A person's lactate threshold is when the production of lactate exceeds their body's ability to clear it from the system. Research suggests training around one's lactate threshold could be .

what is lactate threshold pace