Learn more about the Zoladz method and the Karvonen method of heart rate monitor training are. By the way, for the Zoladz method you only really need your maximum heart rate. For the Karvonen method you need both maximum heart rate and rest heart rate.
This should tell you all you need to know. The running training section should be able to help you further with any other running training questions you should have.
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Hope this helped a bit. Good luck with your running. Kind regards, Dominique