I think HRM in races is kind of useless. My HR is always jacked way up high because of adrenaline rush. Now if we really want to open a can of worms lets talk about power meters. he he.
I used to train with a HRM, and might go back to one at some point.
But, for now, for my interval training I just rely on perceived exertion. It's not too hard knowing when you're near your threshold, and in the "red zone".
For racing, it's also good to get in touch with how you feel when you're at your limits. I'd much rather base my efforts in a race on how I feel, than what the HRM is trying to tell me.
Last edited by UmneyDurak; 03-13-08 at 10:48 PM.