Laktattröskeln

Laktattröskeln, often translated as lactate threshold, refers to the exercise intensity at which lactic acid begins to accumulate in the bloodstream at a faster rate than it can be cleared. During moderate exercise, the body produces lactate as a byproduct of anaerobic metabolism, but it is typically processed and removed efficiently. As exercise intensity increases, the demand for energy exceeds the aerobic system's capacity, leading to a greater reliance on anaerobic glycolysis. This results in a more rapid production of lactate.

The lactate threshold is an important physiological marker in sports and exercise science. It is commonly used to assess an individual's endurance capacity and to help design effective training programs. Athletes often aim to raise their lactate threshold through specific training methods, such as interval training or tempo runs. A higher lactate threshold means an individual can sustain a higher intensity of exercise for a longer duration before fatigue sets in due to lactate accumulation.

Measuring the lactate threshold typically involves blood lactate testing during a graded exercise test, where exercise intensity is progressively increased. The point at which blood lactate levels rise significantly above resting levels is considered the lactate threshold. This threshold can be expressed as a heart rate, a pace, or a power output. Understanding and training around the lactate threshold can significantly improve an athlete's performance in endurance events.