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Anaerobic Threshold

The Oxygen Consumption level above which aerobic energy production is supplemented by anaerobic mechanisms during Exercise, resulting in a sustained increase in lactate concentration and metabolic Acidosis. The anaerobic threshold is affected by factors that modify Oxygen delivery to the Tissues; it is low in Patients with Heart Disease. Methods of measurement include direct measure of lactate concentration, direct measurement of bicarbonate concentration, and gas exchange measurements.