Ultrarunning, Training, Running, Emilia Romagna, Heart Rate Variability.
conditions (just like altitude). For Passatore, I used the sauna for practical reasons, with a similar protocol: I spent about 25 minutes in the sauna, which was set to 70–80C, five times per week. I did 4 weeks straight, but with 5 sessions in the first two weeks, then 4 sessions in the third and