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Hoping someone can give me some advice?!
I've just started training for the Brighton Marathon and am new to running, I'm reasonably fit and active and was doing 6 miles in 50 mins.
A friend of mine has lent me a polar heart monitor thingy and as far as I can tell at 40yrs old I should be training somewhere between 138 - 158 beats per min! Well, to achieve this I need to slow down so much my 6 mile run is now taking twice as long! Does this sound right, and will my time come down in time or should I ignore the heart rate thing and just run at what I feel comfortable at?
Thanks in advance