Best Way To Work Out Heart Rate Zones
Apologies in advance for a schoolboy question.
So I am looking to do a bit more training in heart rate zones this year and I am wondering what the best way to work these out would be. Could someone let me know or point me in the right direction if this has already been answered.
Should I be going with the formula "220 - age = MHR" or should I be actually testing this? Also should I use the same for cycling and running?
I have found this website, would it be a good or a bad idea to use a calculator to work out these things?