0:00 warmup
4:55 1 int.
8:55 2 int.
12:55 3 int.
16:55 4 int.
19:55 ADVICE
20:55 5 int.
24:55 6 int.

Week 3 & 4. Level 2. In session 9 we do the breathing intervals. DO NOT push yourself to deep into the pause in breathing. It should create only a SLIGHT urge to come back to breathing. Preferably do this workout on a fixed trainer, not on the rollers as I do.

Buy cycling rollers here: https://amzn.to/3F5XVgW
Bike from this session: https://szajbajk.com/3GOvt4u