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89 views

Is there a free heart rate monitor for iPhone 5 that will notify me if I exceed a specific heart rate?

I'm not usually able to look at my phone when I'm working out so I was wondering if there is a heart rate monitor, or heart rate monitor and app combination, that will let me know if I exceed a heart ...
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How can you determine each running heart rate zone using data from your runs or from specifically designed workouts?

What workouts can you do to determine each threshold between your heart rate zones? For example a lactate threshold pace can be determined by running as fast as possible for 30 minutes at a even ...
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Should marathon races be done at an even pace throughout or at a constant effort?

Even paces for marathons seem to be the norm, but seem to require very intense efforts near the finish. For example Greg McMillan recommends a fast finish long run to be done with an additional ...