Originally Posted by
work4bike
One thing I do know...When the body knows you're about to do something, it does react. There's a stretch of road at the end of my ride I always do an all-out sprint -- kind of a tradition.
I make sure to ride nice and easy for a couple miles before getting to this point and allow my HR to drop down, but as I'm preparing to sprint off (while sitting at a light), I notice my HR can go as high as 150bpm just sitting there.
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Following up on this. You've got to put a little extra stress into it if you want to feel that 'high'. Try doing multiple 'high-stress' intervals when on a ride with only short breaks between the intervals. Example would be a pushing a one/two mile stretch of road in a higher than normal gear, then go back down to normal bicycling speed for a mile, then back up to the higher gear for another one/two miles, then back down for a mile - - - and on (choose different distances depending on your location/terrain). You'll feel it at the end.