Originally Posted by
subgrade
One thing that hasn't been mentioned here, but was said in the video I linked to before, is that as your power outpot grows, so will your cadence. I can attest there is truth to that; although I don' own/use a power meter, I have obseved my preferred cadence go up by 5-10 rpm after a year or two of regular riding (significantly raising the mileage), without any conscious effort to spin higher cadences. That said, I'd still qualify as a masher, my preffered cadence is around 75-80 rpm.
I don't think your cadence increased
because your power increased – they both increased because you rode more.