Strava Engineering: training

Fitness & Freshness Updates

The Fitness and Freshness chart, first released in March 2013 is one of the many powerful training tools available to Strava premium members. Cyclists can use this feature to monitor their fitness and fatigue levels. According to the underlying model, both fitness and fatigue increase with each ride, by an amount proportional to the intensity of the ride. Between rides, both quantities decay exponentially.

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