Originally Posted by
ZHVelo
So you actually do 51/49 with about 6 hours / week.
Which is what I think is right, if you do 20+ hours, yea sure, get that volume in by doing low intensity. But if you just do 6 hours spread over 3 sessions, I do not believe 2 low 1 high is better than 1 low 2 high. Given the hours that 2nd low session will be too short (I can't find the link right now but the guideline for time spent in different zones is what at least 2 or 2.5 hours in zone 2?).
I tend to be of the opinion that if you're doing Z2 it needs to be at least 90min. And 90min is if you can ride literally
non-stop. No stop signs, no pauses whatsoever. So indoors. Outdoors I'd say 2 hours. Since outdoors you'll have to pause, slow, or stop at some point. I feel that continuous steady work for a long period is needed.