Originally Posted by Quiglesnbits

I am in the process of building back fitness after a long layoff, and I've personally found the ramp test to be a marginal barometer for my ability to actually maintain longer efforts (above 5 minutes) near my resultant FTP. This may just be a function of me as a rider, but I'd say that the ramp test gives me an "aspirational" result which is maybe 5% high. I'm sure it's more accurate for others, and maybe even measures low for some people.