Sometimes referred to as ** Work Contribution Ratios**, these ratios divide work and strainMeasured in joules, this quantifies how much work is performed close to MPA. As MPA drops with fatigue, strain increases... into

*,*

**peak***and*

**high***. Since the three Fitness Signature parameters can be used to determine and predict your maximal power available, an athlete’s ability to perform must work integratively into each of these parameters. That is, each parameter represents an integrated fitness measure and all three together can be used to effectively represent an athlete’s fitness. This is true because MPAMPA stands for Maximum Power Available. It is a measure of the maximum power an athlete can generate at a given moment... More, which is derived from the Fitness SignatureIt is represented by three values: Threshold Power (TP), High Intensity Energy (HIE) and Peak Power (PP). The three fitness values are used..., is predictive of an athlete’s ability to perform.*

**low**Therefore, we can assign for each joule of work performed, how much influence each fitness signatureIt is represented by three values: Threshold Power (TP), High Intensity Energy (HIE) and Peak Power (PP). The three fitness values are used... parameter had in the production of the work. Similarly, we can assign for each joule of strainMeasured in joules, this quantifies how much work is performed close to MPA. As MPA drops with fatigue, strain increases..., how much influence each fitness signatureIt is represented by three values: Threshold Power (TP), High Intensity Energy (HIE) and Peak Power (PP). The three fitness values are used... parameter had in the generation of that strainMeasured in joules, this quantifies how much work is performed close to MPA. As MPA drops with fatigue, strain increases.... When we do so, we allocate work or strainMeasured in joules, this quantifies how much work is performed close to MPA. As MPA drops with fatigue, strain increases... according to these ratios.

- Low Work / StrainMeasured in joules, this quantifies how much work is performed close to MPA. As MPA drops with fatigue, strain increases... / Training LoadAlso referred to as TL, and a component of the XPMC, this represents the exponentially-weighted moving average of activity XSS... / Recovery LoadAlso referred to as RL, this is part of the XPMC and represents the exponentially-weighted moving average of activity XSS... / XSSThe Xert Strain Score quantifies how much Strain an athlete endures during an activity. By taking Strain, which is the... More is determined by Threshold PowerAlso used as an acronym TP in Xert and sometimes described using the more colloquial term FTP, Threshold Power is...
- High Work / StrainMeasured in joules, this quantifies how much work is performed close to MPA. As MPA drops with fatigue, strain increases... / Training LoadAlso referred to as TL, and a component of the XPMC, this represents the exponentially-weighted moving average of activity XSS... / Recovery LoadAlso referred to as RL, this is part of the XPMC and represents the exponentially-weighted moving average of activity XSS... / XSSThe Xert Strain Score quantifies how much Strain an athlete endures during an activity. By taking Strain, which is the... More is determined by High Intensity EnergyAlso used as the acronym HIE, this is the amount of energy or work capacity an athlete has above Threshold...
- Peak Work / StrainMeasured in joules, this quantifies how much work is performed close to MPA. As MPA drops with fatigue, strain increases... / Training LoadAlso referred to as TL, and a component of the XPMC, this represents the exponentially-weighted moving average of activity XSS... / Recovery LoadAlso referred to as RL, this is part of the XPMC and represents the exponentially-weighted moving average of activity XSS... / XSSThe Xert Strain Score quantifies how much Strain an athlete endures during an activity. By taking Strain, which is the... More is determined by Peak PowerAs one of the three parameters that define an athlete's Fitness Signature, this is an athlete's highest possible power. Sometimes...