Select the Periodic Views icon  in the menu bar, to open the 'Periodic Views'. This article takes explains the functions to analyze the true metabolic cost of the executed workouts and races. Select the period you want to analyze first (learn more) and choose the Metabolic cost icon .

The Metabolic cost parameters are calculations on your device data. You can analyze them day by day and compare them to your Borg-score. It is a method to evaluate and compare the objective and subjective training load of training schedules.

What does it mean?

Borg-score
Definition: Borg Ratings of Perceived Exertion Scale is used in prescribing and monitoring exercise intensity. With this method, athlete's subjectively rate how hard they feel that they are working. A given numerical rating corresponds to the perceived intensity of exercise. The athlete has to look at the standard scale to dertermine the appropriate number. When the RPE scale is used correctly, this system for monitoring exercise intensity has proven very accurate.

Strain Factor
Definition: The Strain factor is a calculated number that quantifies the intensity of a workout . It takes into account the adapted power (cycling) / adapted speed (running) of a workout in relation to your anaerobic threshold to arrive at a single score of the intensity created by that workout.
One hour of functional threshold (as hard as you can go for one hour) = 1 Strain factor point.
Typical Strain factor points:
When training in your personal training zones

• REC: < 0,75
• ED-1: 0,75 - 0,80
• ED-2: 0,80 - 0,86
• ID: 0,86 - 0,97
• ANT: 0,97 - 1,03
• VO2: 1,03 - 1,15
• ANC: > 1,15

Load index
Definition: The Load index is a calculated number that takes into account the duration and intensity of a workout to arrive at a single score of the overall training load and physiological stress created by that workout.
One hour of functional threshold (as hard as you can go for one hour) = 60 Load index points.