Anaérobie

Comment of @nick.karasev in the MARQ forum:

"Here's a short sample of workouts and expected values from Firstbeat:

https://www.firstbeat.com/en/anaerobic-training-effectworkout-explanations/

Here's the paper I referred to above:

https://assets.firstbeat.com/firstbeat/uploads/2015/10/FFW609US05-171.pdf

Basically, Firstbeat uses "anaerobic effect" in its strict scientific definition, i.e. impact on anaerobic energy pathway. The energy system that power high intensity efforts of short to medium duration, i.e. from about a minute to 3-4 minutes. Anything below 30-40 sec is handled by the cell's primary energy source -- ATP and its cousin CTP. Anything longer than 4-5 minutes would see regular aerobic system kick in and complement and eventually take over completely for longer efforts.

Make sure your max heart rate and LT are set correctly. Better still, anchor your Z5 at LT. For example, my MHR is about 182. My LT is around 163. This is the beginning of my Z5. Every time I do a heavy bag workout with bouts of about a minute followed by 30-60 sec recovery, or high box jumps on a similar protocol, or hill intervals I get a non-trivial anaerobic TE."