My INSCYD report

[jarsson]

@Sly

additionally fasting

Why fasting? You will impair your training this way - fuel your work.

@Sly

Should be around 80 minutrs the goal or would you extend this time?

If you can - go longer. 80 min SST is always a solid workout, but sometimes its nice to try where you can go and often positively surprise yourself. Basically, your TiZ should be around your TTE or extended - so with threshold workouts take your TTE divide it into intervals and start there. With SST to provide decent stimulus you should go longer than your FTP TTE - so 60 min+.

You can also check this topic - many valuable insights:

Sweet Spot Progression

For sweetspot, if it’s really sweet spot, you don’t need anything more than a minute or two. You might not even NEED to stop or break it up into intervals at all, except maybe for a mental break, crack open a gel, take a swig of sports drink. TR might be adding those longer rest intervals not because they are necessary but rather as a backdoor way to getting more zone 2 endurance into your legs.