Originally Posted by Carbonfiberboy

Thanks for bringing this chart to our attention again. I have a question: I also do low cadence high effort training, though seated on my resistance rollers. I do intervals at from 90%-100% FTP, 2 intervals of 15'-25', rest between 1/2 interval length. My HR and breathing are below AeT at that effort. What zone am I in? BTW, it works for me. Does not increase my 1RM with weights, but does steadily increase how long I can do them, and my muscular endurance on long climbs. So it does change something. I could also do them at 120% FTP though for a shorter duration and with a higher metabolic cost, i.e. training load? I'm pretty sure that the TSS I get from these is not a good measure of training stress. I don't need to rest the day before or after at my current effort. I've done them once a week for 2 months in the early spring, and only then, for many years.

Oh and for post 16. Never had a knee problem, even on long backpacking descents in the mountains. Maybe because I do them? Doubt that though. Old bubbe-meise.