The ratio between your recent training load (acute: last 7 days) and your longer-term training load
(chronic: last 28 days). Used to manage training progression and injury risk.
< 0.8 (Blue): Detraining risk - you may be losing fitness
0.8 - 1.3 (Green): Optimal zone - ideal training progression
1.3 - 1.5 (Orange): Warning - pushing the limits
> 1.5 (Red): Injury risk - training load may be too high
TSS - Training Stress Score
A composite metric that quantifies the overall training stress of a workout, taking into account both
intensity (Normalized Power) and duration.
The highest average power you can sustain for approximately one hour, measured in watts. Used as a
baseline for calculating training intensity and TSS.
NP - Normalized Power
A power measurement that accounts for the variable nature of your effort during a workout, providing
a more accurate representation of the physiological cost than average power.
IF - Intensity Factor
The ratio of Normalized Power to FTP (IF = NP / FTP). Indicates how hard a workout was relative to
your threshold.