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From Fellrnr.com, Running tips
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→TRIMPnorm Normalized Scaling
While heart rate is generally the simplest and most effective way of calculating [[Training Impulse]] there are other approaches. For cyclists, it is possible to directly measure power output and to use this to calculate [[Training Impulse]]. However the [[Training Impulse]] values calculated from power cannot easily be translated for integration with other training methods. It is theoretically possible to calculate [[Training Impulse]] based on lactate levels or VO<sub>2</sub>, but in practice it is impractical to measure these well training.
=TRIMP<sup>norm</sup> Normalized Scaling=
The range of TRIMP<subsup>exp</subsup> and TRIMP<subsup>cr10</subsup> are not the same. For each minute of exercise the TRIMP<subsup>exp</subsup> varies between 0 and 4.36 for men and between 0 and 3.4 for women, while TRIMP<subsup>cr19cr10</subsup> varies between 1 and 10. However it is trivial to multiply TRIMP<subsup>exp</subsup> by 0.436 or 0.34 so that the values have similar ranges. This allows for different types of workout to use different schemes, with the results combined. This can be further refined so that TRIMP<sup>norm</sup> is set in a prioritized manner:# If an intensity has been defined for a workout, use normalized TRIMP<sup>cr10</sup>.# If a workout has heart rate data available, use TRIMP<sup>exp</sup># If it is possible to estimate TRIMP<sup>exp</sup> based on other workout data, use that estimation# Otherwise use a default intensity to calculate a normalized TRIMP<sup>cr10</sup>
=References=
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