Subject: RE: HR Experts - effort v fatigue15step - 2012-07-05 8:41 AM To the HR experts, I have a simple question: when you are fatigued is your heart rate going to be naturally higher than if you are feeling more "fresh". Example, the past 3 days have been a 15 mile, 6 mile and 12 mile run. I have noticed that it was more difficult to keep my HR low on the 12 miler than it was on the 15 miler, even though the temperature was a bit lower. As your body gets fatigued does your heart have to work harder in order to maintain a consistent level of effort? I have to ask, "Why did you run 15, 6 and 12 miles in consecutive days? " Depending on how fatigued you are, sometimes you'll get a repressed HR and it won't rise at all, and other times you'll get cardiac drift, where it will keep creeping up even though you aren't pushing too hard. |