Training Peaks

There are plenty more - but these are my main go to’s that I use to assess training sessions.

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Duration - The total time of the session.

Distance - The total distance traveled.

TSS - Training Stress Score is a composite number that takes into account the duration and intensity of a workout to arrive at a single estimate of the overall training load and physiological stress created by that training session. The Intensity Factor(IF) is noted in brackets next to the TSS. 

NP - Normalized Power is an estimate of the power that you could have maintained for the same physiological "cost" if your power had been perfectly constant, such as on an ergometer, instead of variable power output.  NP is used to calculate TSS.

VI - Variability index is normalized power divided by average power.

Pw:HR - The ratio of Power and Heart Rate as a measure of decoupling.

Pa:HR - The ratio of Pace and Heart Rate as a measure of decoupling. 

EF - Efficiency Factor is the difference between normalized power (cycling) or normalized pace (running) and average heart rate for the workout or selected workout segment.

• Cycling EF = NP in watts /AVG HR

• Run EF = Normalized Graded Pace in meters/min / Avg HR