Since the dawn of the online training age, we have become increasingly obsessed with data and metrics. None more so than our FTP. We wear it like a badge of honor, a badge that sometimes… maybe… possibly… every now and then, we embellish a touch… whoops!
Something to bear in mind is that your Functional Threshold Power (FTP) is a moveable feast. We stick a nice tidy number on it but in reality, your FTP changes on a daily basis depending on a number of variables. These include things like how well you slept, accrued fatigue, how warm you are, how well fed you are and even what altitude at which you are training.