Parts of this topic have been covered elsewhere, but I haven’t found a full answer. If I missed something, I apologize.
A metabolic test last week showed my AeT (50/50 fat/carbs or RER 0.85) as 138. My AnT was 153 (100% carbs/ RER 1.0).
I’m wondering where to set my zones. Any help? I’m using Training Peaks, but I get wildly different values depending on which calculator I use. In particular, I’d really like to know where to set the zone 1/2 boundary, as I’m focusing on building base for the next few weeks.
I’m 55, and work on skis during the winter (backcountry touring), with running or nordic skiing as secondary training modes.