I did a lactate test end of July. I think my LT1 is higher now, but it could be correct. That is why I wanted to try a session for about an hour at that wattage to see if I would have some cardiac drift. Now, I am more a century rider, I can ride 90min+ at sweetspot. Maybe that is why 50min is too short for this test (was just a quick test without many thinking before I started).
My goal is to extend the time at that intensity to 3h, maybe 4? It is not easy Z2 but more upper Z2/lower Z3. Maybe I should read the Friel stuff again. When I want to start my base phase. I would like to mix long Z2 rides (60-65%) with those LT1 rides and increase the length of those rides…