When the strap fails
There are also those times when your damn HRM will not work for some unknown reason, and it is usually when you want it the most. In these cases, RPE — rate of perceived exertion — is a really useful fallback option.
Heart-rate monitors are there to help guide the intensity of your workout. They are not a replacement for knowing what the work is supposed to feel like.
Train in defined zones
To train specifically and correctly, you will need to train in carefully defined zones. This article assumes that you already have your zones but need practical pointers on how to use your HRM out on the road.
