Is heart rate included in the software analysis and if so, in what way ? Background question: as a triathlete I do a lot of swimming and running where no powermeter is involved.

with a Stryd you can measure your power while running.

I have used my PowerCal HR Powermeter for running, It gives a value, it looks reasonable, but it is hard to tell how accurate is it. In any case you must determine your FTP for running which is different than the one for biking (In Training Peaks they comment it can be 10% higher).

No offense, but I know that there are several ways to measure power while running. That’s not the answer I was looking for. My question was more on the Xert software and if and how heart rate is included.

We don’t account for heart rate at the moment in Xert Online. Xert Mobile does have an experimental Derived Power metric that you can try. Comprehensive HR modeling is on our roadmap.

Bas, TP uses TSS to normalize effort/fatigue between different type of activities. The original TSS was derived from power. TSS metrics based on HR are derived from that (and are similar to TRIMPS). A running/swimming power derived TSS, may sound reasonable to account for accumulated strain, and probably better that mixing HR and Power derived measures. PowerCal derives Power from HR, from which you derive a “reasonable” TSS. This is were all things come together. HR alone could probably not cover all aspects of fatigue in training. I know of a proprietary software, that requires (tri)athletes to measure their HRV twice a day to measure accumulated fatigue and recommend workouts. This, and a neural network based analysis. I never used it because it belongs to a closed training group, but I have seen some slides about it.