Ultrarunning, Training, Running, Emilia Romagna, Heart Rate Variability.
beats when uphill (here we are getting up to 80–82% of my maximal heart rate), especially at the start when it is warmer (3 pm), then keep it < 140 bpm on the near-flat sections, and just try to save my legs on the downhills, trying to make up some time while running easy. I planned to run the