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The blood lactate concentration at the anaerobic threshold is called the "maximum steady-state lactate concentration" (MLSS). [ 8 ] AeT is the exercise intensity at which anaerobic energy pathways start to operate, considered to be around 65-85% of an individual's maximum heart rate. [ 2 ]
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.
During the test, subjects were asked to point at a scale from 6 to 20 reflecting their feeling of discomfort. The RPE threshold was recorded as constant value of 12-13. Averages of ventilatory and RPE threshold were conveyed by parameters that were monitored and then compared by using t-test for dependent samples.
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 ]
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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.
Blood tests showed a reduction in biological age of up to 11 years in five of the six women, with the average participant experiencing a 4.6-year decrease, according to the study, published last ...
The average untrained healthy male has a V̇O 2 max of approximately 35–40 mL/(kg·min). [16] [17] The average untrained healthy female has a V̇O 2 max of approximately 27–31 mL/(kg·min). [16] These scores can improve with training and decrease with age, though the degree of trainability also varies widely. [18]