RickyW
There are all sorts of theories. Go with the one you trust. And that suits you and your lifestyle.
And listen, don't be a slave to it. It's important you enjoy your running too !
If you had to run every run under a prescribed % heart rate, you'd soon lose the enjoyment.!
My advice would be to do the following (based on 5 day running week) for the first few weeks:
Sun - long run - keep every mile under 70%WHR
Mon - recovery run - every mile under 70%WHR maybe even 65%WHR
Tues - tempo run - wear your HRM but run to feel. Look at your HR stats after the run, record them and compare them the following week
Wed - rest or recovery run like Tues
Thurs - intervals - again, wear your HRM but run to feel. Look at your HR stats after the run, record them and compare them the following week
Fri - rest or recovery runSat - easy run - every mile under 70%WHR
I think that's a good mix of keeping the training interesting but also keep a big focus on the slow/recovery/low HR aspects which will help your aerobic capacity.
In theory, if you were really base building, yes, you'd be doing all runs sub 70%WHR (but that does get a wee bit boring after a while!)
I started it a few years ago. Now I only really use my HRM to keep me slow on my slow days and to see how fit/unfit I am during my harder sessions.
It's really useful and should be viewed as another layer of (pretty accurate) data to help you become a better, faster runner.
Edited: 18/07/2012 at 11:27