Century Training, Bike Fit, Weight Loss and More – Ask a Cycling Coach 254

[Captain_Doughnutman]

@jeffwhitfield

I’ve always wondered is if an increase in FTP is a good indication of an increase in endurance. I’m not sure that it is really.

After starting training again I was also questioning the components of FTP, @DaveWh provided a lot of answers with this great post:

Help Make Sense of my Physiological Chaos!

Three things driving FTP: Your VO2max Your fractional utilization I.e. percent of VO2max that you can ride at for MLSS (influenced by VLaMax) Your mechanical efficiency at using oxygen to convert fuel into power output How much the above reduce as you “detrain” varies across people - and probably largely influenced by genetics, and maybe past training history. I think one thing that is not caught by a traditional FTP test is repeatability. I.e. if you did a few 20min FTP tests one after the …