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The lactate threshold is a useful measure for deciding exercise intensity for training and racing in endurance sports (e.g., long distance running, cycling, rowing, long distance swimming and cross country skiing), but varies between individuals and can be increased with training.
Here you can see a typical test where the first lactate threshold is at around 210-215 power output and their second lactate threshold is at 260-265. Courtesy of Human Powered Health Performance Labs
The Conconi Test is a sports medicine test [1] intended to measure an individual's maximum anaerobic and aerobic threshold heart rates.. The test measures a person's heart rates at different loads (e.g. faster speeds on a treadmill).
lactate values below aerobic threshold: no long or too extensive sessions Extensive basic endurance exercise: Extensive duration and interval technique, driving game: health aspects, fortification of endurance, fat metabolism exercise: lactate values clearly below aerobic threshold (50-77 %) 1–8 hours
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The lactate threshold is the cross over point between predominantly aerobic energy usage and anaerobic energy usage. This cross over is associated with the anaerobic energy system's inability to efficiently produce energy leading to the buildup of blood lactate often associated with muscle fatigue . [ 16 ]
The by-product of anaerobic glycolysis—lactate—has traditionally been thought to be detrimental to muscle function. [13] However, this appears likely only when lactate levels are very high. Elevated lactate levels are only one of many changes that occur within and around muscle cells during intense exercise that can lead to fatigue.
Although probably unrelated to AMPD deficiency, if the person happens to have a high load of d-lactate in the blood (mostly from food and colonic fermentation), the precipitate, the lactate loss and the magnesium loss may occur even before l-lactate (mostly from muscles) reaches its renal re-absorption threshold. This happens because l-lactate ...