I'm getting this effect even better now with smartwatch tracked runs and activities uploaded of Strava, which has a premium feature that tracks a "fitness score

I'm getting this effect even better now with smartwatch tracked runs and activities uploaded of Strava, which has a premium feature that tracks a "fitness score" alongside with a fatigue score, based on the intensity of the workouts you record. https://support.strava.com/hc/en-us/articles/216918477-Fitness-Freshness https://support.strava.com/hc/en-us/articles/216918477-Fitne... It's really motivating to see that number go up, or at least maintain it and build more area under the curve. The Strava social component is also motivating because it adds some accountability with friends seeing and liking your workouts, and then noticing if you stop.