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Name Description Used on site
Fatigue-Curve This calculation is based on the relation of the neural imput to the muscle-cells from 0% to 100%.
This creates an increase in [Ca]2+ making the muscle contract. Due to the state of the 3 types of fatigue, a different amount of power in (VO2tot) can be produced.
  1. No Fatigue: stands for the VO2tot when there is no warming up
  2. Fatigue 1: stands for the VO2tot if we look at the metabolic state in the muscle.
  3. Fatigue 1 and 2: Also takes in account the amount of KHD in the muscle making the VO2tot drop.
  4. Fatigue 1, 2 and 3: Also takes in account the cardiovascular effects that drop the VO2tot.
Fit Fit means the degree of agreement between the model and the data. It is a measure of how well the model can explain or predict the observed phenomena.
Interval An interval during exercise refers to a period of time where you alternate between high-intensity exercise and low-intensity exercise or rest.
Lactate test A lactate test is a type of exercise test that measures the amount of lactate (lactic acid) in the blood during physical activity.
Oxycon test An oxycon test is a type of exercise test that measures the oxygen consumption (VO2) and other parameters like VCO2, Ve of a person during physical activity.
Performance Indicators Performance indicators are variables that are used to determine the limitations of an individual's performance. In the TREFf model, we use 7 performance indicators to calculate these limitations.
Tmax This is the ability to accelerate.
TREFF Trainings Effect
Vmax This is the maximum power.
VT1 This is the first ventilatoire threshold.
Autors Name Description Taggs Link
GoldenCheetah GoldenCheetah A software example of an alternative/improvement of the critical power concept. More Info
WKO Power Duration Model V2 A software example of an alternative/improvement of the critical power concept. More Info
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